Powdercoat or Epoxy primer good enough?

7173bmw

7173bmw

Well-Known Member
Messages
87
Reaction score
3
Location
New York
Getting ready to drop the front and rear suspension as part of the resto/upgrade for my '71 2800 and '73 3.0. The shop that is sandblasting many of my parts is telling me that the epoxy primer is very strong and all thats necessary. The undercarriage will be treated with POR15 or something similar. So the question is: do I sandblast, epoxy primer and reassemble or powdercoat and reassemble?

Thanks,

ND
 
I would expect that if you can remove a part to be placed in the powder curing oven, than you can consider that process for that part. But for non-removeable parts, powder coating is out.

I've read that POR-15 is extremely hard. But it's not the only such coating on the market. How about the stuff used on icebreaker hulls... think that's hard?

Hardness aside, the bond of coating to surface is perhaps of equal importance. Some primers will allow "spiders" to travel along the primier/metal interface. You don't want that.
 
I wouldn't powder coat

PC is good until it gets nicked. Then it'll trap moisture and promote rust. A good zinc chromate primer or self etching (epoxy or Variprime) will serve you better if the car is driven regularly. Do regular under carriage inspections and consider a waxoyl type treatment
 
+1 for paint. Just finished up the tin on a Porsche. No way to install without a scratch and touch up.

Anyone have experience with assembly marks? The CSLs for sale had a good set of pics with red paint markings on chassis connections. Or was that just wishful thinking they knew better?
 
You must log in or register to reply here.
Back
Top