I’m just “mind-glasssing” right now and had a question…I’ll be using a solid yellow-orange(ish) tint on the top and bottom of my new 9’8". If I glass the bottom with a single layer of glass, and then do the standard double-layer on top, won’t the top come out darker or a deeper shade than the bottom? I’m looking for a SOLID color on the board (obviously with the rails being darker because of the cut laps and multiple layers)…I’m thinking maybe lam the colored bottom with one layer, then lam the top with one layer (let dry, cut laps, in the correct order of course), and then throw another layer of 4 or 6oz. across both the top and bottom…Seems like that would be the only way to get a tint that is the exact same color on the top and bottom, no?
I’m looking to do something just like my Cooperfish, pictured here…
That’s pretty much just what I did on this latest board.
Single layer of 6oz on the bottom(orange tint) and then a single layer on top with the same mix of pigment. (I pre-mixed enough tint{yellow tint with a touch of red pigment} to do both layers and then mixed each batch seperately) And finally another layer of 6oz, but clear on top, with the logo under it.
I did the same with this fish for a friend of mine a couple of weeks ago.
Perfect, thanks. So did you wait until the first (colored) deck lam was completely cured before you laid down your 2nd layer of clear glass on the deck? That yellow board looks great by the way…Can I see a picture of the deck?
I am using epoxy, so timing can be different than poly, but basically I cut the laps on the bottom layer when it was still tacky and soft-ish(much easier than after cure) and then let it cure for another1-2 hours, til it wasn’t tacky anymore. Did the top orange layer, again cut it when it was still soft and tacky and did the clear layer over it after an hour or so; less time than before.
Thanks for the compliment, it’s waiting for wet/dry sanding and then polishing now.
One more question whhile we’re here…If I’m going to mix up enough colored resin (poly) for one layer of top and one layer of bottom (and then one two layers of clear 6oz. on the top and bottom) , how much would you think I’d need? Keep in mind that I’d rather WASTE a gallon than be short a few ounces…Will one gallon of lam resin do? Two gallons? It’s been so dang long since I’ve glassed that I’ve forgot everything…We’re talking about a 9’8", full color tint…And I’m not good at it…I always have to splash more resin on the rails/laps…Thanks.
Actually, I think I know someone who has a boat up north from here…lots of lakes around these parts. Have to give him a call.
Hope you get some good ones.
And to Tenover, I have no clue really, having never used poly. I do mix slightly heavier than normal batches of epoxy when doing tints/pigments, simply because I wouldn’t want to end up with discolored blotches because of different color mixes. Sorry.
hey he didn't mention anything about scribing a line on the rail around the board for where you put a tape down for the cloth wrapping around the rail. Are you glassing old school style, color resin bottom - color deck batch that meets where the bottom layer overlaps on to the top - clear deck layer overlapping onto the bottom? Opague color or just resin tint?
Yes, exactly (“old school” style)…I’ve done it before, so I remember most of the details (marking the laps, etc…), was just wondering about amounts of lam resin…
I think I used about a quart and a half for the bottom - a quart for the deck patch and a quart and a half for the final layer on the deck. I think I wasted most of the resin wetting out the overlap. It’s been a long time since I glassed a board with polyester so I’m not absolutely sure on the amounts. I think the longest board I’ve glassed was about 9’4" and all I can remember is not having to much resin left in the gallon can. Might want check with a glass shop in your area to see if you can get some tips. If you are doing an opague colored resin you might have to mix in some white with your pigment to keep it from coming out translucent. To get the same color on the top and bottom you might have to mix one big batch all at the same time. Divide it into enough for the bottom and top setting the top portion aside for later.
Howzit tenover, A gallon should be plenty with some left over. My bottom single layers of 6 oz usually take right around 1 quart for a 9'0". You probably would end up with enough left over to do a short board.Aloha,Kokua
The Cooperfish in the picture looks like it was done with opaque pigments mixed translucent so the stringer ghosts thru the lamination. Most likely an opaque Yellow and White mix in which just enough of it is added to the resin so it does’nt completely turn totally opaque and thus translucent. Tint pigments are dye based and transparent in nature. The more you add to the mix the darker they get.
Keep in mind that Gene Cooper has some the nicest glasswork in the industry on his boards. I’m sure he has some tricks up his sleeve that he keeps private but even if he gave all the details, there is an art to it that takes experience.
Start with a warble free shape, fine sand to perfection, then laying out tape lines, mixing colors, keeping the color even, trimming the laps, pinlining… all steps that can present their own little obstacles and aren’t easy for hobbyists to perfect.
A couple of things he has mentioned on this site include prepping the overlaps before the next lamination. He has mentioned the use of a roller tool to compress the overlap edge before it gets rock hard into the foam.
He has also mentioned laminating a clear 4 oz layer of cloth over color lams to act as a sanding barrier and to increase depth of the clear coat.
I’ve looked over several of his boards and to my eye they are flawless.
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