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I did some shields for the fire department to use on their speaker podiums. I cut them in the shape I wanted, sanded the edges, scuffed with a scothbrite pad, and primed with Krylon ( the pvc suppliers reccomendation ) finish coated and then sized and gilded. No problem.
------------------ George Perkins Millington,TN. goatwell@ixlmemphis.com
"I started out with nothing and still have most of it left"
Posts: 4320 | From: Millington, TN. USA | Registered: Nov 1998
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Well I just learned something yesterday, newbie mistake really. Don't use Oneshot to coat PVC, it caused the panel to curl up like half a water pipe! So I guess I pobably would'nt use Oneshot gold size.
------------------ Ross Luckhurst AKA Scolt on Chat DIGISIGN Woodstock, Ontario, Eh! digisign@netcom.ca
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Krylon makes a good base on PVC, as already mentioned. I would expect Frog Juice to do the same. Whatever works on vinyl (polyvinylchloride, PVC), should work on PVC board.
Brad in Arkansas. It's going to be another day of being 'rendered down.'
Posts: 1230 | From: Kansas City, MO, USA | Registered: Nov 1998
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Jean
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posted
We have been using acrylic latex paint on pvc. Scuff and spray or roll with soft nap roller. So far, it's been working outside (about a year-signs still look good).
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Nettie, Do you have any Ti-Cote or one of those pure acrylics we use to make banners enamel receptive? That's what I'd prime with, andd follow with oil size and the normal gilding procedure. PS. You can add a couple drops of universal tint to a tad of the acrylic so you can see what areas you covered. And it dries in half an hour
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"The codfish lays ten thousand eggs, the homely hen lays one the codfish never cackles to tell you what she's done And so we shun the codfish while the lowly hen we prize Which only goes to show you that it pays to advertise!" *^*^*^*^*^*^*^*^ Ogden Nash
The Sign Shop Mendocino, CA.
Posts: 6713 | From: Mendocino, CA. USA | Registered: Nov 1998
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Janet..we have done some adventuresome projects with PVC and so far we are either really clever or dumb lucky or somewhere in between.
PVC grows and shrinks with temperature more than most other sign products, and that is the one thing to be careful of.
We have coated out PVC letters with Signgold and they look normal after three years of service. We have coated out PVC signs with latex paint over a PVC primer, and that seems to hold up in California weather.
My theory would be that gold leafing for interior duty would be just fine. I would worry about brittle gold cracking and failing due to the PVC expansion.
This may sound goofy, but what you can do is gold leaf a 6"by6" piece of PVC and then thermal cycle it, two hours in the freezer, two hours in a 100 degree oven (or two hours in full sun),back and forth a half dozen times or so. I would think that gold is so brittle that it would fail quickly. Look at it with a magnifying glass before you start and after each cycle.
------------------ Victor Georgiou Bob Loves Signs Danville, CA email blssigns@verio.com
Posts: 1746 | From: Danville, CA , USA | Registered: Dec 1998
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We went to the local Kelly Moore Paint store and asked for an exterior rated PVC Primer. They had one for interior also.
I don't remember the exact name on the can, but there was a long list of things this stuff would prime including PVC.
If you don't have Kelly Moore there, go to wherever the painting contractors get their paint. I would guess that all the big boys have something similar.
------------------ Victor Georgiou Bob Loves Signs Danville, CA email blssigns@verio.com
Posts: 1746 | From: Danville, CA , USA | Registered: Dec 1998
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Gold Leaf is malleable and therefore will stand the expansion and contraction of the PVC. Stick to pure acrylics for the coatings, not acrylic lacquers for the same reason.
------------------ Kent Smith Smith Sign Studio Greeley, Colorado, USA oldgilt@aol.com
Posts: 1025 | From: Estes Park, CO | Registered: Nov 1998
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So I guess I pobably would'nt use Oneshot gold size.
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