Q-40 Racing Discuss AMA 422 and any other variants of Quarter 40 racing

Composite Parts - Primer Color?

Reply

Old 05-08-2009, 04:19 PM
  #1  
DonStegall
Thread Starter
My Feedback: (1)
 
DonStegall's Avatar
 
Join Date: Aug 2005
Location: MonroeNorth Carolina
Posts: 1,840
Gallery
My Gallery
Models
My Models
Ratings
My Feedback
Default Composite Parts - Primer Color?

I have been using System Three WR-155 water reducible epoxy primer for my primed in the mold composite parts. They no longer sell it and I’m almost out. They replaced it with a quicker drying primer called Yacht Primer. It is still water reducible epoxy primer. I love being able to thin and clean up with water. I had tested the WR-155 for compatibility with a wide range of paints and other primers. Epoxy sticks to it very well as does CA. I have not done much testing on the Yacht Primer, but from what I understand it is essentially the same formula with some minor tweaks.

One change is the color. The WR-155 was white. Not bright white, but pretty white. The Yacht Primer is gray. It is a light gray. It is lighter when it comes out of the mold than when it is sanded. Which is actually a cool feature. You can see where you have sanded a part.

My only concern is customer acceptance. Most of the people I have talked to have said not to worry about it and just make the change.

I have attached a picture of a Swee Pea belly pan. The white one had a very light coat of primer and is a little see-through.

I would like to hear opinions on the primer color as to whether it is an issue or not.
Attached Thumbnails Click image for larger version

Name:	Rp43124.jpg
Views:	14
Size:	41.4 KB
ID:	1194589  
DonStegall is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service