donmurray Posted December 29, 2005 Report Share Posted December 29, 2005 What is a good tough paint for magnesium engine side covers. A local powder coating shop said mag parts did not hold the paint well because some kind of outgassing when heated in the oven. Quote Link to comment Share on other sites More sharing options...
pa. Posted December 29, 2005 Report Share Posted December 29, 2005 Have them painted in Two Pack paint. Quote Link to comment Share on other sites More sharing options...
monty-python Posted December 30, 2005 Report Share Posted December 30, 2005 Have had excellent results with PJ1 high temp engine paint (gloss black). Just make sure the cases are well prepared. Quote Link to comment Share on other sites More sharing options...
gbmoto Posted December 30, 2005 Report Share Posted December 30, 2005 I've had good results with PJ1 too, I use Suzuki grey case paint, gives a nice "worksy" look, and lasts well. Quote Link to comment Share on other sites More sharing options...
steve shakeshaft Posted December 30, 2005 Report Share Posted December 30, 2005 I want to get the darn stuff off the side covers on my Suzuki and polish them! Quote Link to comment Share on other sites More sharing options...
donmurray Posted December 30, 2005 Author Report Share Posted December 30, 2005 My Montesa magnesium flywheel cover has some super paint on it. Takes hard sanding or other mechanical action to remove. I've heard the VHT Fast Strip will remove anything, but haven't tried that yet. May have to get it bead blasted. After polishing, this stuff looks like it might protect. http://www.aircraftspruce.com/catalog/cspages/evershield.php Quote Link to comment Share on other sites More sharing options...
steve shakeshaft Posted December 31, 2005 Report Share Posted December 31, 2005 Thanks for that. Quote Link to comment Share on other sites More sharing options...
marky boy Posted January 11, 2006 Report Share Posted January 11, 2006 Powder coating will adhere to magnesium no problem and will be tougher and should last longer than other mentioned coatings.Your local shop just needs to know how to deal with it.It is true that mag casings 'gas out' but the same can be said of sand cast alluminium casings. They need to release the gasses before they coat it and then apply an etch primer before they p.coat it.I have coated loads of magnesium stuff as we do quite a lot of w. superbike stuff,incl. casings and magnesium wheels etc. hope this helps. Quote Link to comment Share on other sites More sharing options...
donmurray Posted January 12, 2006 Author Report Share Posted January 12, 2006 Powder coating will adhere to magnesium no problem and will be tougher and should last longer than other mentioned coatings.Your local shop just needs to know how to deal with it.It is true that mag casings 'gas out' but the same can be said of sand cast alluminium casings. They need to release the gasses before they coat it and then apply an etch primer before they p.coat it.I have coated loads of magnesium stuff as we do quite a lot of w. superbike stuff,incl. casings and magnesium wheels etc. hope this helps. <{POST_SNAPBACK}> How do you "release" the gases from the casting? Maybe I can work with the local powder coating guy to get him up-to-speed on the method. Quote Link to comment Share on other sites More sharing options...
marky boy Posted January 12, 2006 Report Share Posted January 12, 2006 (edited) Whilst i woild like to be of more help , im sure that you appreciate Don that i am reluctant to give out a quick fix to a problem that i learnt how to deal with after a lot of time and a lot of cock ups!! Here is the cryptic tip then. Tell him to work out in which part of the process the problem occurs and then deal with the problem 1st!! You/he should get it from that. Edited January 12, 2006 by marky boy Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.