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YOUR RESEARCHRecommended product for black plastic undertrays
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Replace under trays
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I’ve recently replaced my under trays with new ones from my local OPC, blO0dy expensive.
Leading evidence: 'Replace under trays' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Clean undertrays was a thing' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Use swiss wax plastic preserver and the usually halfords products
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I've used Swiss Wax plastic preserver and the usually Halfords products but want to try a different proctor.
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I just used WD40 and wire wool on my arch liners and undertrays to get the tar off and leave a mild lustre, but sure it soon washed off.
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Suggestion
im gonna over coat the koch chemie with polytrol - just on a test sample to see if it bonds but i do prefer the koch stuff for ease and it does last pretty well - arches and under trays have had their first coats.
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Suggestion
I’ve used ACF50 for years on this kinda thing, maybe it’s considered old hat now, there’s loads of specific products out there things have probably moved on
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911uk: 1 discussions
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Now getting the car back together after the winter cleaning and suspension change. Please will you recommend what product to use on the undertrays.
I've used Swiss Wax plastic preserver and the usually Halfords products but want to try a different proctor. Thoughts on using BiltHamber?
Any other suggestions.
im doing mine with this -
https://www.theultimatefinish.co.uk/products/koch-chemie-nano-magic-plastic-care.aspx
PS i love bilt hamber stuff but this is terrific
Wow, didn’t know this was a thing, surely first drive out destroys all that good work!
I’ve recently replaced my under trays with new ones from my local OPC, blO0dy expensive.
Is cleaning them purely a cosmetic thing or does it offer any protection?
I’ve used ACF50 for years on this kinda thing, maybe it’s considered old hat now, there’s loads of specific products out there things have probably moved on
The only plastic treatment I've found that works AND lasts is Polytrol. It's a brush on, wipe off deal that needs to be done carefully to get a smooth even finish, but to be be fair, 12 months later on my daughter's Mini wheel arches which had bleached white and blotchy, it's still looking great. I only found it by searching and reading subsequent reviews. Warning, it stinks, is messy and not a user friendly product like most valeting products - but it works.
https://www.owatroldirect.co.uk/product/polytrol/
Lots of other 'detailing' products out there that work, are easier to apply and look great for a while, but I've not come across one that lasts more than a couple of months at best.
And don’t leave it on too long before wiping off - it’s gets sticky and horrible as I found out!
Great stuff for scuttle plastics and trim, gives a long lasting finish
im gonna over coat the koch chemie with polytrol - just on a test sample to see if it bonds but i do prefer the koch stuff for ease and it does last pretty well - arches and under trays have had their first coats.
+1 for Polytrol. I got some a few years ago to do the black plastic bumpers and arch trims on my X5 was extremely impressed. Easy to apply and buff off and last at least a year. Works a treat on the 996 scuttle trim under the wipers and the door mirror triangle trim (and patio furniture and anything plastic or painted that is not too light in colour). I just used WD40 and wire wool on my arch liners and undertrays to get the tar off and leave a mild lustre, but sure it soon washed off.
I was replacing damaged undertrays yesterday. Are the studs that they attach to replaceable? Mine are pretty much corroded and on their last legs. I didn't know cleaning undertrays was a thing!
