The New And Improved Unofficial R65 Forum V2

Technical Discussion => BMW Technical Q&A, Primarily R65 => Topic started by: Adrian on November 10, 2016, 12:22:54 AM

Title: Spraying Plastics
Post by: Adrian on November 10, 2016, 12:22:54 AM

Hi again - I am about to respray the front mudguard - does anyone have any experience/advice about what type of paint to use? What kind of undercoat particularly. I have researched today and I have found two pieces of advice. One suggests standard grey primer that would be used on metal surfaces and another recommends Etching primer - which I'm already using on the seat tray and have used on all the metal parts I have resprayed so far - like crash bars and things.
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So any help would be great thanks ...... Adrian :-)

Title: Re: Spraying Plastics
Post by: clonmore1 on November 10, 2016, 02:48:53 PM

https://youtu.be/TuJnjN7QqBc

This might be of some use

Title: Re: Spraying Plastics
Post by: Adrian on November 10, 2016, 08:09:38 PM

Okay thanks for that Chris :-)

Title: Re: Spraying Plastics
Post by: Justin B. on November 10, 2016, 08:18:25 PM

I have repainted several and I used Dupont Chroma system base-coat/clear-coat paint and so far all is perfect.  I think I used the two part Dupont Uro Prime but not sure it's still available.

AFAIK you don't need an etch primer on plastic - what is there for it to etch?  Etch primer has a bit of acid in it to help bite into a bare metal surface.

Title: Re: Spraying Plastics
Post by: Adrian on November 11, 2016, 05:38:37 AM

Thanks Justin :-)