DO NOT USE POLYURETHANE PRIMER on acrylic, you are asking for problems, you
"can" use a polyester primer, I have in the past without issues at least.
Once the acrylic has been sealed with the polyester you can use polyurethane
over the polyester. you cannot get a polyester primer in a spray can. it
requires MEKP (methylethylketoneperoxide) to harden and once mixed has a
bout 1/2 hour of pot life before it goes off. I have no knowledge of
waterbased sealers that stick to acrylic. IF it is a small area you want to
touch up you may want to try a sign shop that does lighted signs, they have
paints that are acrylic safe and may have a color close to what you need
On 7/11/06 11:55:22 PM, Greg Schroeder (gschroeder@comcast.net) wrote:
> I have read through the forum and searched the email index and I have not
seen
a primer that is available in a spray can that was recommended. I am seeing
that Terry recommends water based sealant and others recommended a
polyurethane primer. I just want to paint the acrylic roof panel. It has a
lot of cracks and stress fractures. I was hoping to experiment with just
painting this piece and not having to invest into a complete car painting
system at this time. If I can get the required primer/sealant in a spray
can
it would be more than enough for this small job. Any recommendations?
Greg 0036
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