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I did the search on painting and gilding PVC. I have made a ribbon out of 1/4" PVC sheet for a military shield that will be goldleafed. All the posts on this subject were quite diversified. Ti-Cote, Krylon primer, scuff prior... etc. etc. etc. This shield will go to Southern Calif. and will be hung under the eaves of the Generals quarters. It will have two coats of that there good ole POR-15 Pelucid as the final topcoat. So, those that did this in the past, what was the most successful procedure ??
-------------------- John Smith Kings Bay Signs (Retired) Kissimmee, Florida Posts: 822 | From: Central Florida - The Sunshine State | Registered: Jan 2000
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If you are going to paint the ribbon, an acrylic or vinylacrylic latex will bond to it. If you plan on guilding it, Instacol (sp) will give you a brilliant guild.
-------------------- Si Allen #562 La Mirada, CA. USA
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Brushasaurus on Chat Posts: 8831 | From: La Mirada, CA, USA | Registered: Nov 1998
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John, you're gilding the ribbon then putting Pelucid clear OVER it?? Personally, I wouldn't clear over gold leaf. It doesn't need it, and the clear deadens the unique reflective quality of the gold. Maybe if you anticipate a lot of hand-traffic on the thing, otherwise not necessary.
But to answer your question... Size or other background color sticking to the surface of the PVC should pose no problems as long as you thoroughly roughen it (400 grit or so). If the gold needs to wrap around the 1/4" thickness, then the edges will need some special filling treatment. ANYTHING will stick to that raw cellular edge. Use whatever high-build primer you would use on any other job. Water or solvent based whouldn't matter as long as it will fill the cells and give you something to sand smooth. Then, a base coat of enamel on the edges (or overall) will keep the gold size from overdrying on the edges where the primer might be a little absorbent. If you're going to lay a full base coat of color on, I recomment a dose of 1-Shot hardener to promote extra adhesion.
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