bottom lam. lap{{{

ok, i am up in the air about a few things when glassing… i am trying to get the laps against the foam to look perfect. i just tried using some hot coat resin for the top layer laps. that worked great. no discolorazation. but i am still a litte worried about doing the same thing to the bottom layer laps. the same thing meaning that i apply a small coat just around where the lap ends. so i can sand and make it smooth. will this cause a color diff. between the laps and the foam? or should it blend nice??? this sounds pretty confusing, sorry

ok, i am up in the air about a few things when glassing… i am trying > to get the laps against the foam to look perfect. i just tried using some > hot coat resin for the top layer laps. that worked great. no > discolorazation. but i am still a litte worried about doing the same thing > to the bottom layer laps. the same thing meaning that i apply a small coat > just around where the lap ends. so i can sand and make it smooth. will > this cause a color diff. between the laps and the foam? or should it blend > nice??? this sounds pretty confusing, sorry what are you using to sand it? i use my sander with a small disc, on a real slow speed as if you use to fast a speed it will burn! make sure you sand in long motions and dont pause else you will get bumps paul

The reason to paint the edge of the first lap with sanding resin is so that you can sand a bevel into the glass edge, make it smooth so that the top glass lays smoothly over it. The reason that you can’t do that without the sanding resin, you can’t sand polyester lam resin without overcoating it with sanding resin, You’re going to tape and cut the edge of the top glass too. After you laminate the top glass you’ll cut the edge around the tape. There’s no reason to paint a strip of sanding resin at this edge. You’re going to coat the entire board with sanding resin. When you sand the sand the rest of the board you can sand the second lap edge as needed.

Hey Noodle, I m a little bit confused. Your idea is to paint the edge of the first lap with sanding resin , then glass it. Again send a bevel into the glass edge. Probably it’s sanding the glass fabric instead of sanding the resin. I always think that glass the blank and paint the edge of the first lap with sanding resin, later you sand the rail without hurting the fabric structure. I m not sure my thinking is correct or not as I have done this yet and I m looking for your advice cos my previous two boards got uneven rails. Regards, Crabie>>> The reason to paint the edge of the first lap with sanding resin is so > that you can sand a bevel into the glass edge, make it smooth so that the > top glass lays smoothly over it. The reason that you can’t do that without > the sanding resin, you can’t sand polyester lam resin without overcoating > it with sanding resin,>>> You’re going to tape and cut the edge of the top glass too. After you > laminate the top glass you’ll cut the edge around the tape. There’s no > reason to paint a strip of sanding resin at this edge. You’re going to > coat the entire board with sanding resin. When you sand the sand the rest > of the board you can sand the second lap edge as needed.

Hey Noodle, I m a little bit confused. Your idea is to paint the edge of > the first lap with sanding resin , then glass it. Again send a bevel into > the glass edge. Probably it’s sanding the glass fabric instead of sanding > the resin. I always think that glass the blank and paint the edge of the > first lap with sanding resin, later you sand the rail without hurting the > fabric structure. I m not sure my thinking is correct or not as I have > done this yet and I m looking for your advice cos my previous two boards > got uneven rails.>>> Regards,>>> Crabie Crabie, Not quite. Mind you, I’ve never made a whole poly board, but my lap experience with epoxy would send me in this direction. Plan your lap edge on curved surfaces. Tape the bottom-glass lap line on the deck. Lam the bottom and cut the lap. Paint an inch or so of sanding resin on the glass around the edge of the bottom glass. Fillet the lap edge of the glass to the foam with spackle. Sand the glass edge to make a nice smooth transition from glass to foam, basically shaped the way you want the board surface. As one of the pros posted, the truer you shape each layer, the less work you will have to waste shaping the next layer. Since the top lam will only adhere to cured laminating resin, or sanded sanding resin, make sure you sand all the sanding resin that you painted on. Tape the top glass edge over the bottom glass. Lay the top glass down and laminate it. After curing, cut the top glass edge and remove it. You don’t have to worry about painting the top glass edge with sanding resin. You’re going to paint the entire board with sanding resin. So do that, bottom-then-top, or top-then-bottom. Sand the board smooth. When you sand the bottom glass edge, it will show through the sand job. It’s okay because you’re going to add another coat of gloss resin, and sand. That’s an adaptation of my epoxy lap schedule. Mostly I go to this much trouble because I’m a glassing screwup. If I had more experience, I could probably leave off a few of these steps. I don’t trust myself enough to make that leap yet. Hope this helps.

Crabie,>>> Not quite. Mind you, I’ve never made a whole poly board, but my lap > experience with epoxy would send me in this direction.>>> Plan your lap edge on curved surfaces. Tape the bottom-glass lap line on > the deck. Lam the bottom and cut the lap. Paint an inch or so of sanding > resin on the glass around the edge of the bottom glass. Fillet the lap > edge of the glass to the foam with spackle. Sand the glass edge to make a > nice smooth transition from glass to foam, basically shaped the way you > want the board surface. As one of the pros posted, the truer you shape > each layer, the less work you will have to waste shaping the next layer.>>> Since the top lam will only adhere to cured laminating resin, or sanded > sanding resin, make sure you sand all the sanding resin that you painted > on.>>> Tape the top glass edge over the bottom glass. Lay the top glass down and > laminate it. After curing, cut the top glass edge and remove it. You don’t > have to worry about painting the top glass edge with sanding resin. You’re > going to paint the entire board with sanding resin. So do that, > bottom-then-top, or top-then-bottom. Sand the board smooth.>>> When you sand > the bottom glass edge, it will show through the sand job. MEANT TO SAY: When you sand the TOP glass edge, it will show through the sand job. It’s so confusing! The top glass edge is on the bottom of the board. If I do this with a keyboard, you can imagine how bad I am with a squeegee. -Noodle>>> It’s okay > because you’re going to add another coat of gloss resin, and sand.>>> That’s an adaptation of my epoxy lap schedule. Mostly I go to this much > trouble because I’m a glassing screwup. If I had more experience, I could > probably leave off a few of these steps. I don’t trust myself enough to > make that leap yet. Hope this helps.

Thanks Noodle, I got it. This is the way you can sand the edge with minimium harm to the fabric glass. You just sand the resin/spackle away and smooth the edge. Am I right? One more thing is you do it in the first lam or you do it on each lam ( except the last lam )? Regards, Crabie