--- title: "How to ensure UV and corrosion resistance for garden tool power tool housings?" description: "Facing inconsistent incoming quality and unexpected field cracking of garden tool power tool housings, get actionable criteria to evaluate suppliers, balance cost and weather resistance, and lock in stable mass production performance for 2026 outdoor equipment projects." url: "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html" language: "en" type: "Q&A" category: "Plastic Components Q&A" datePublished: "2026-10-11" dateModified: "2026-10-11" brand: "OK TOOL" manufacturer: "OK TOOL" answerCount: 10 --- # How to ensure UV and corrosion resistance for garden tool power tool housings? ## Question As a quality assurance lead at an OEM outdoor power equipment brand, I’ve been running incoming inspection for our 18V cordless string trimmer replacement housings for 3 months now, and we’re hitting a 4.2% field failure rate that’s way above our 1% threshold. Most failures are random cracking after 3-4 weeks of outdoor use under direct sun, plus some paint peeling in high humidity coastal areas. Last week, our previous injection supplier told us they can only improve to 2.8% failure rate if we agree to a 12% price increase, and our sourcing team is pushing to lock in new suppliers before our peak 2026 summer shipping window in 10 weeks. I need to audit 3 new potential vendors next month, but I don’t have a clear, actionable evaluation framework specifically for garden tools standard power tool housings that covers incoming checks, long-term weather performance, and actual cost vs risk tradeoffs, instead of the generic ISO 9001 checklists we’ve been using that don’t catch these field issues. ## Answers ### Answer 1 — Best Answer First, baseline mandatory performance requirements for garden tools standard power tool housings must be aligned to real outdoor use cases, not generic plastic part specs. The minimum non-negotiable parameters you need to lock in before any quote comparison include 1000-hour UV exposure testing per ASTM G154 with no more than 5% impact strength retention drop, 720-hour salt spray testing for all coated and assembled metal inserts, and a maximum 2% dimensional variation across 50 consecutive sampled parts for the trigger switch mounting cavity and battery compartment mating surface. For cost and lead time analysis, a 12% price premium to drop failure rate from 4.2% to 2.8% is not cost-effective at volumes above 50,000 units per SKU. At 2026 raw resin market rates, using UV-stabilized modified PP or glass-filled nylon 6 for these housings adds only 6-8% to total part cost, which is far lower than the 12% premium your current supplier is quoting. **Standard 1+1 cavity tooling for this housing design takes 18-22 working days for sample delivery, and mass production ramp-up to 10,000 units per week can be achieved within 35 days of final sample sign-off**, so any supplier quoting lead times longer than 6 weeks for first article samples is either overbooked or relies on third-party mold processing that adds unmanaged quality risk. For total landed cost calculation, you must include 2% extra for random incoming sampling failures, 1.5% for replacement part stock to cover field returns, and shipping insurance for sea freight in peak 2026 summer logistics periods. For supplier audit judgment criteria, move beyond generic ISO documentation checks to focus on 3 verifiable on-site checks. First, confirm the supplier runs their own in-house UV and salt spray testing equipment for plastic components, instead of outsourcing all material performance tests to third-party labs with 2+ week turnaround times. Second, pull 10 random production work orders from their current garden tool housing projects and check the actual production cycle time logged for each batch, to confirm they are not cutting cooling time to boost line output which directly causes hidden internal stress that leads to field cracking. **All first article samples must undergo a 72-hour thermal cycle test between -10°C and 60°C before formal sign-off**, to catch hidden structural weaknesses that ambient lab testing cannot identify. **Any supplier that cannot provide a 6-month warranty against UV degradation and structural cracking for shipped housings should be disqualified immediately**, no matter how low their per-unit pricing is. **status:** accepted **Author:** Rachel Huang **Date:** 2026-10-11 ### Answer 2 Track the hidden defect bottleneck that causes post-field cracking by mapping each batch’s production parameters to incoming and field test data. Most unexpected cracking failures come from unregulated residual stress left inside the molded part after ejection, which can be eliminated by adding a 1-hour stress relief annealing step for every 200 units right after demolding, using a low-temperature convection oven set to 80°C. Implement a layered sampling system where 2 units from every injection molding cycle are pulled for a simple drop test from 1.5 meters onto concrete before moving to the next production phase, which can reduce outgoing hidden defect rates by more than 70% at less than 1% added labor cost. Over 6 months of lean implementation, this workflow can push overall production yield from 95% to above 99% without any major equipment upgrade or material cost increase. **status:** suggested **Author:** Jason Zhou **Date:** 2026-10-11 ### Answer 3 For this type of garden tool power tool housing, choosing P20 hardened steel with 48-52 HRC hardness for the core and cavity will deliver a minimum 250,000 shot mold life, which is 40% longer than the common pre-hardened P20 steel used for general consumer plastic parts. Add 0.02mm draft angle to all deep rib positions, and design a full perimeter overflow edge on the parting line to avoid flash that requires manual post processing. Schedule a mandatory mold maintenance cycle every 30,000 shots, which includes polishing the cavity surface, checking for ejector pin wear, and tightening all mold base bolts. This regular maintenance eliminates 90% of unexpected dimensional variation that causes assembly fit issues, and avoids unplanned mold repair downtime that can delay mass production shipments by 2-3 weeks. **status:** suggested **Author:** Daniel Yang **Date:** 2026-10-11 ### Answer 4 Adjust 3 small structural details on your current housing design to cut tooling risk and improve final part performance without changing any of the external dimensions or assembly points. First, unify all wall thickness values to between 2.2mm and 2.5mm, eliminate any 1.2mm thin wall sections around the switch mounting pocket that cause uneven cooling and concentrated internal stress. Second, add a 0.8mm radius to all sharp internal corners, which reduces stress concentration points that initiate cracking after repeated vibration and temperature changes. Third, increase the draft angle on the battery compartment mating wall from the current 0.5 degrees to 1.2 degrees, which avoids scuff marks during ejection and makes it easier to release the part without prying that leaves invisible surface damage. All these adjustments can be completed within 3 working days of design review, no major rework required. **status:** suggested **Author:** Kevin Liu **Date:** 2026-10-11 ### Answer 5 Optimize the full injection molding line workflow for consistent output and zero unplanned downtime. Set the standard cycle time for each housing part to 48 seconds, with 18 seconds of holding pressure, 20 seconds of cooling time, and 10 seconds of demolding and part removal. Deploy a simple end-of-arm robotic pick-up system on each injection machine to remove parts automatically right after mold opening, which cuts manual part pulling errors by 90% and ensures no parts are left with improper ejection marks. Group all related post-processing steps, including flash trimming, part cleaning, and surface pretreatment for painting, on a single connected production line instead of separate scattered stations, which cuts overall production lead time per batch by 15% and reduces the chance of part scratching during cross-station transportation. **status:** suggested **Author:** David Zhang **Date:** 2026-10-11 ### Answer 6 Run a full tolerance stack-up analysis across all mating components of the power tool housing before mass production, including the trigger switch, battery contact plate, motor housing, and outer shell. The cumulative tolerance across all assembled parts must not exceed 0.12mm, to avoid uneven pressure on the plastic housing walls that causes cracking after repeated trigger operation. Standardize the assembly sequence so that the bottom half of the housing is fixed on a dedicated fixture first, then all internal components are placed in sequence before the top half is closed with self-tapping screws. m for all housing screws, and use a torque-controlled electric screwdriver for every station to avoid over-tightening that creates hidden cracks around the screw bosses. This standardized assembly workflow reduces fit-related return rates by more than 65% at high volume production. **status:** suggested **Author:** Linda Xu **Date:** 2026-10-11 ### Answer 7 For outdoor garden tool housings operating in varying climate conditions, select a UV-stabilized 15% glass fiber filled modified PP resin instead of general purpose ABS, which delivers 20% better low temperature impact resistance and 30% lower material cost than glass filled nylon 6. The modified formulation adds 0.3% light stabilizer and 0.2% anti-oxidant additive directly into the resin pellet during compounding, instead of applying a UV coating only on the part surface, which prevents UV degradation from affecting the internal part structure even if the outer paint layer gets scratched. The material also meets -20°C low temperature impact requirement, so parts do not crack if dropped on frozen grass in winter, and the formulation does not add excessive weight to the final housing to keep the end product comfortable for end users to hold during long operation sessions. **status:** suggested **Author:** Sophia Wang **Date:** 2026-10-11 ### Answer 8 Structure the full project timeline to hit the 10-week peak shipping window without delays. Set day 1 to day 7 as design review and mold steel material preparation, day 8 to day 22 as mold machining and first trial sample production, day 23 to day 30 as sample performance testing and design iteration, day 31 to day 35 as final sample sign-off, and day 36 onwards as production ramp-up to full volume. Lock in a formal change control process that any modification to part dimensions, material formulation, or production parameters must be submitted in writing 7 working days in advance, and receive signed approval from both parties before implementation, which prevents unvetted process tweaks from causing unexpected quality issues mid-production. All pre-production samples must be retained with a unique part number and revision level, stored on both supplier and customer sides as the reference standard for incoming inspection for the full production run. **status:** suggested **Author:** Emily Chen **Date:** 2026-10-11 ### Answer 9 Run functional validation tests that simulate real garden use conditions instead of only standard lab bench tests. Mount the finished housing onto a production cordless string trimmer, and run continuous 2-hour operation cycles for 20 hours to confirm no housing loosening or cracking from motor vibration. Leave assembled test units outside for 4 full weeks in the actual local operating climate, including direct midday sun, night time dew, and occasional rain exposure, to verify no paint peeling or housing brittleness that does not show up in accelerated lab tests. Confirm the housing design leaves 1.5mm of clearance between the inner wall and the motor outer surface, so heat generated by the motor during long operation does not build up and soften the plastic structure, which is a common hidden cause of deformation that users mistake for material quality defects. **status:** suggested **Author:** Olivia Chen **Date:** 2026-10-11 ### Answer 10 Define a clear defect classification system that separates cosmetic issues from functional critical defects to avoid unnecessary production waste. Critical defects that trigger full batch rejection include any crack over 0.5mm on screw bosses or mounting points, any dimensional deviation over 0.2mm on mating surfaces, and any impact strength drop of more than 10% after 72 hours of UV exposure. Major defects that require 100% sorting include flash over 0.1mm on parting lines, uneven paint coverage over 3% of the part surface, and minor ejection marks on non-cosmetic areas. Set IQC sampling to AQL 0.65 for critical defects, AQL 1.0 for major defects, and AQL 2.5 for minor cosmetic defects. Add a mandatory IPQC checkpoint every 2 hours during mass production, where 5 consecutive parts are pulled for dimensional check, to catch process drift early before hundreds of defective parts are produced. **status:** suggested **Author:** Amy Li **Date:** 2026-10-11 ## Related Resources - [Plastic Components Q&A](https://www.jaterson.com/qa/plastic-components/) - [Plastic Components](https://www.jaterson.com/products/plastic-components/) - [Plastic Component Manufacturing Guide](https://www.jaterson.com/manufacturing/plastic-components/) - [Plastic Components Buying Guides](https://www.jaterson.com/buying/plastic-components/) - [Capabilities](https://www.jaterson.com/capabilities/) - [Custom Manufacturing](https://www.jaterson.com/custom-manufacturing/) - [Manufacturing Knowledge Base](https://www.jaterson.com/knowledge/) - [Plastic Components](https://www.jaterson.com/knowledge/plastic-components/) ## Structured Data ```json [ { "@context": "https://schema.org", "@type": "QAPage", "mainEntity": { "@type": "Question", "name": "How to ensure UV and corrosion resistance for garden tool power tool housings?", "text": "As a quality assurance lead at an OEM outdoor power equipment brand, I’ve been running incoming inspection for our 18V cordless string trimmer replacement housings for 3 months now, and we’re hitting a 4.2% field failure rate that’s way above our 1% threshold. Most failures are random cracking after 3-4 weeks of outdoor use under direct sun, plus some paint peeling in high humidity coastal areas. Last week, our previous injection supplier told us they can only improve to 2.8% failure rate if we agree to a 12% price increase, and our sourcing team is pushing to lock in new suppliers before our peak 2026 summer shipping window in 10 weeks. I need to audit 3 new potential vendors next month, but I don’t have a clear, actionable evaluation framework specifically for garden tools standard power tool housings that covers incoming checks, long-term weather performance, and actual cost vs risk tradeoffs, instead of the generic ISO 9001 checklists we’ve been using that don’t catch these field issues.", "answerCount": 10, "upvoteCount": 7, "datePublished": "2026-10-11T19:26:58Z", "dateModified": "2026-10-11T19:35:31Z", "author": { "@type": "Person", "name": "Anonymous", "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html" } ,"acceptedAnswer": { "@type": "Answer", "text": "First, baseline mandatory performance requirements for garden tools standard power tool housings must be aligned to real outdoor use cases, not generic plastic part specs. The minimum non-negotiable parameters you need to lock in before any quote comparison include 1000-hour UV exposure testing per ASTM G154 with no more than 5% impact strength retention drop, 720-hour salt spray testing for all coated and assembled metal inserts, and a maximum 2% dimensional variation across 50 consecutive sampled parts for the trigger switch mounting cavity and battery compartment mating surface. For cost and lead time analysis, a 12% price premium to drop failure rate from 4.2% to 2.8% is not cost-effective at volumes above 50,000 units per SKU. At 2026 raw resin market rates, using UV-stabilized modified PP or glass-filled nylon 6 for these housings adds only 6-8% to total part cost, which is far lower than the 12% premium your current supplier is quoting. Standard 1+1 cavity tooling for this housing design takes 18-22 working days for sample delivery, and mass production ramp-up to 10,000 units per week can be achieved within 35 days of final sample sign-off , so any supplier quoting lead times longer than 6 weeks for first article samples is either overbooked or relies on third-party mold processing that adds unmanaged quality risk. For total landed cost calculation, you must include 2% extra for random incoming sampling failures, 1.5% for replacement part stock to cover field returns, and shipping insurance for sea freight in peak 2026 summer logistics periods. For supplier audit judgment criteria, move beyond generic ISO documentation checks to focus on 3 verifiable on-site checks. First, confirm the supplier runs their own in-house UV and salt spray testing equipment for plastic components, instead of outsourcing all material performance tests to third-party labs with 2+ week turnaround times. Second, pull 10 random production work orders from their current garden tool housing projects and check the actual production cycle time logged for each batch, to confirm they are not cutting cooling time to boost line output which directly causes hidden internal stress that leads to field cracking. All first article samples must undergo a 72-hour thermal cycle test between -10°C and 60°C before formal sign-off , to catch hidden structural weaknesses that ambient lab testing cannot identify. Any supplier that cannot provide a 6-month warranty against UV degradation and structural cracking for shipped housings should be disqualified immediately , no matter how low their per-unit pricing is.", "upvoteCount": 7, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#acceptedAnswer", "datePublished": "2026-10-11T20:46:38Z", "author": {"@type": "Person","name": "Rachel Huang","url": "https://www.jaterson.com/team/rachel.html"} } ,"suggestedAnswer": [ { "@type": "Answer", "text": "Track the hidden defect bottleneck that causes post-field cracking by mapping each batch’s production parameters to incoming and field test data. Most unexpected cracking failures come from unregulated residual stress left inside the molded part after ejection, which can be eliminated by adding a 1-hour stress relief annealing step for every 200 units right after demolding, using a low-temperature convection oven set to 80°C. Implement a layered sampling system where 2 units from every injection molding cycle are pulled for a simple drop test from 1.5 meters onto concrete before moving to the next production phase, which can reduce outgoing hidden defect rates by more than 70% at less than 1% added labor cost. Over 6 months of lean implementation, this workflow can push overall production yield from 95% to above 99% without any major equipment upgrade or material cost increase.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-2", "datePublished": "2026-10-11T20:40:49Z", "author": {"@type": "Person","name": "Jason Zhou","url": "https://www.jaterson.com/team/jason.html"} } , { "@type": "Answer", "text": "For this type of garden tool power tool housing, choosing P20 hardened steel with 48-52 HRC hardness for the core and cavity will deliver a minimum 250,000 shot mold life, which is 40% longer than the common pre-hardened P20 steel used for general consumer plastic parts. Add 0.02mm draft angle to all deep rib positions, and design a full perimeter overflow edge on the parting line to avoid flash that requires manual post processing. Schedule a mandatory mold maintenance cycle every 30,000 shots, which includes polishing the cavity surface, checking for ejector pin wear, and tightening all mold base bolts. This regular maintenance eliminates 90% of unexpected dimensional variation that causes assembly fit issues, and avoids unplanned mold repair downtime that can delay mass production shipments by 2-3 weeks.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-3", "datePublished": "2026-10-11T20:36:45Z", "author": {"@type": "Person","name": "Daniel Yang","url": "https://www.jaterson.com/team/daniel.html"} } , { "@type": "Answer", "text": "Adjust 3 small structural details on your current housing design to cut tooling risk and improve final part performance without changing any of the external dimensions or assembly points. First, unify all wall thickness values to between 2.2mm and 2.5mm, eliminate any 1.2mm thin wall sections around the switch mounting pocket that cause uneven cooling and concentrated internal stress. Second, add a 0.8mm radius to all sharp internal corners, which reduces stress concentration points that initiate cracking after repeated vibration and temperature changes. Third, increase the draft angle on the battery compartment mating wall from the current 0.5 degrees to 1.2 degrees, which avoids scuff marks during ejection and makes it easier to release the part without prying that leaves invisible surface damage. All these adjustments can be completed within 3 working days of design review, no major rework required.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-4", "datePublished": "2026-10-11T20:29:27Z", "author": {"@type": "Person","name": "Kevin Liu","url": "https://www.jaterson.com/team/kevin.html"} } , { "@type": "Answer", "text": "Optimize the full injection molding line workflow for consistent output and zero unplanned downtime. Set the standard cycle time for each housing part to 48 seconds, with 18 seconds of holding pressure, 20 seconds of cooling time, and 10 seconds of demolding and part removal. Deploy a simple end-of-arm robotic pick-up system on each injection machine to remove parts automatically right after mold opening, which cuts manual part pulling errors by 90% and ensures no parts are left with improper ejection marks. Group all related post-processing steps, including flash trimming, part cleaning, and surface pretreatment for painting, on a single connected production line instead of separate scattered stations, which cuts overall production lead time per batch by 15% and reduces the chance of part scratching during cross-station transportation.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-5", "datePublished": "2026-10-11T20:26:57Z", "author": {"@type": "Person","name": "David Zhang","url": "https://www.jaterson.com/team/david.html"} } , { "@type": "Answer", "text": "Run a full tolerance stack-up analysis across all mating components of the power tool housing before mass production, including the trigger switch, battery contact plate, motor housing, and outer shell. The cumulative tolerance across all assembled parts must not exceed 0.12mm, to avoid uneven pressure on the plastic housing walls that causes cracking after repeated trigger operation. Standardize the assembly sequence so that the bottom half of the housing is fixed on a dedicated fixture first, then all internal components are placed in sequence before the top half is closed with self-tapping screws. m for all housing screws, and use a torque-controlled electric screwdriver for every station to avoid over-tightening that creates hidden cracks around the screw bosses. This standardized assembly workflow reduces fit-related return rates by more than 65% at high volume production.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-6", "datePublished": "2026-10-11T20:26:45Z", "author": {"@type": "Person","name": "Linda Xu","url": "https://www.jaterson.com/team/linda.html"} } , { "@type": "Answer", "text": "For outdoor garden tool housings operating in varying climate conditions, select a UV-stabilized 15% glass fiber filled modified PP resin instead of general purpose ABS, which delivers 20% better low temperature impact resistance and 30% lower material cost than glass filled nylon 6. The modified formulation adds 0.3% light stabilizer and 0.2% anti-oxidant additive directly into the resin pellet during compounding, instead of applying a UV coating only on the part surface, which prevents UV degradation from affecting the internal part structure even if the outer paint layer gets scratched. The material also meets -20°C low temperature impact requirement, so parts do not crack if dropped on frozen grass in winter, and the formulation does not add excessive weight to the final housing to keep the end product comfortable for end users to hold during long operation sessions.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-7", "datePublished": "2026-10-11T20:23:29Z", "author": {"@type": "Person","name": "Sophia Wang","url": "https://www.jaterson.com/team/sophia.html"} } , { "@type": "Answer", "text": "Structure the full project timeline to hit the 10-week peak shipping window without delays. Set day 1 to day 7 as design review and mold steel material preparation, day 8 to day 22 as mold machining and first trial sample production, day 23 to day 30 as sample performance testing and design iteration, day 31 to day 35 as final sample sign-off, and day 36 onwards as production ramp-up to full volume. Lock in a formal change control process that any modification to part dimensions, material formulation, or production parameters must be submitted in writing 7 working days in advance, and receive signed approval from both parties before implementation, which prevents unvetted process tweaks from causing unexpected quality issues mid-production. All pre-production samples must be retained with a unique part number and revision level, stored on both supplier and customer sides as the reference standard for incoming inspection for the full production run.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-8", "datePublished": "2026-10-11T20:15:44Z", "author": {"@type": "Person","name": "Emily Chen","url": "https://www.jaterson.com/team/emily.html"} } , { "@type": "Answer", "text": "Run functional validation tests that simulate real garden use conditions instead of only standard lab bench tests. Mount the finished housing onto a production cordless string trimmer, and run continuous 2-hour operation cycles for 20 hours to confirm no housing loosening or cracking from motor vibration. Leave assembled test units outside for 4 full weeks in the actual local operating climate, including direct midday sun, night time dew, and occasional rain exposure, to verify no paint peeling or housing brittleness that does not show up in accelerated lab tests. Confirm the housing design leaves 1.5mm of clearance between the inner wall and the motor outer surface, so heat generated by the motor during long operation does not build up and soften the plastic structure, which is a common hidden cause of deformation that users mistake for material quality defects.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-9", "datePublished": "2026-10-11T20:03:05Z", "author": {"@type": "Person","name": "Olivia Chen","url": "https://www.jaterson.com/team/olivia.html"} } , { "@type": "Answer", "text": "Define a clear defect classification system that separates cosmetic issues from functional critical defects to avoid unnecessary production waste. Critical defects that trigger full batch rejection include any crack over 0.5mm on screw bosses or mounting points, any dimensional deviation over 0.2mm on mating surfaces, and any impact strength drop of more than 10% after 72 hours of UV exposure. Major defects that require 100% sorting include flash over 0.1mm on parting lines, uneven paint coverage over 3% of the part surface, and minor ejection marks on non-cosmetic areas. Set IQC sampling to AQL 0.65 for critical defects, AQL 1.0 for major defects, and AQL 2.5 for minor cosmetic defects. Add a mandatory IPQC checkpoint every 2 hours during mass production, where 5 consecutive parts are pulled for dimensional check, to catch process drift early before hundreds of defective parts are produced.", "upvoteCount": 0, "url": "https://www.jaterson.com/qa/evaluate-garden-tool-power-housing-uv-corrosion-resistance.html#suggestedAnswer-10", "datePublished": "2026-10-11T19:35:31Z", "author": {"@type": "Person","name": "Amy Li","url": "https://www.jaterson.com/team/amy.html"} } ] } }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ {"@type": "ListItem", "position": 1, "name": "Home", "item": "https://www.jaterson.com/"},{"@type": "ListItem", "position": 2, "name": "Q&A", "item": "https://www.jaterson.com/qa/"},{"@type": "ListItem", "position": 3, "name": "Plastic Components Q&A", "item": "https://www.jaterson.com/qa/plastic-components/"} ,{"@type": "ListItem", "position": 4, "name": "How to ensure UV and corrosion resistance for garden tool power tool housings?"} ] } ] ```