Bit of thread resurrection, but its my thread so its ok
With regard to the OP, I did source some Plastex earlier this year, and I have done a test with some airbox offcuts. Now the airbox is PP-MD30 (which I found out is polypropylene with 30% mineral powder filler), and the Plastex remains flexible after 1 1/2hrs. I have tried twice, once with a very small chamfer, second time with an approx 1.5mm chamfer (the material is 3mm thick) and cleaned with carby cleaner. I could still fold the piece, and peel the Plastex off with no evidence of it bonding.
So my question is, which Plastex are you guys using? My original order was for the PP product, but the guy rang me and told me I don't need that one, the normal stuff will be fine. He actually was very helpful, but now doubting the recommendation. I will be calling him tomorrow.
Also, anyone know what the carb slide material is? Is it PP as well?