View Full Version : clearcoat over paint
08-18-2003, 09:53 PM
I have made a name board for my transom out of oak, w/ 2 coats CPES 2 primer and 3 coats interlux 1 part polyurethane. I have vinyl lettering which have been applied to this. Looks great. I am wondering if there is any sort of clear coat I could apply over this which I could give an occasional maint. coat to preserve the gloss and extend the life of my nameboard and that would not cloud the lettering or change the color of the paint. Or should I resign myself to the fact that the life of the lettering is equal to that of the polyurethane paint, meaning I will have to cough up the dough to have the letters remade in a few years.
08-18-2003, 10:14 PM
You have a tough combination for longivity. For starters a one part Interlux poly paint sounds like Brightsides, which is not a true poly paint. It does not hold up very well. It has a high quality mineral spirits base in it. Your next tuffy is the oak. Let it live out it life. A clear coat for oil base, that will remain clear, is not too weather resistant, along with salt resistant. It is lacking the uv filters for this job.
Coating a thin layer of anything over vinyl, will not be advisable. I have used, over vinyl, a thick mixed layer of 207 special hardener mixed with the 105 resin, but never over Brightsides. It has a redish but clear mostly, when applied hue to it. But I have never put anything over brightsides. Maybe someone else will chime in with some life experiences with this combination.
08-18-2003, 10:27 PM
A two part poly has a different base, and will lift the one part Interlux Brightsides, if that is the paint behind the letters, which will be exposed on the board, if its not fully cured for about a month in direct sun. Check the base of the clearcoat. Then its still iffy at best.
[ 08-18-2003, 10:29 PM: Message edited by: Oyster ]
08-18-2003, 10:32 PM
Will paint, clear coat or otherwise, stick to the vinyl letters? I doubt it.
08-18-2003, 10:39 PM
The only way I have been successfull with a coating over the vinyl numbers, is to float a heavy coat of casting resin, or the West special coatings mix. This encases them, and really doesn't need the bonding properties. We do our number boards like this, and then varnish over the resin with either Last and Last, which has a nice bright yellow tint to it. I use okume for my number boads. This give it a nice compliment to the letters. My .02 worth.
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