I was sanding hotcoat and at some parts i sanded the hotcoat too much that i could see the fiberglass. Is it ok or the water will sip in? Thanks
Depends on whether or not you are putting a final finish coat on or not.
Gloss coat that thang and you'll be good. Just dont sand through the Gloss coat haha.
Ya get some more resin on there. If it's all over, make sure it's sanded all flush and give it a whole new coat but lay it on pretty thin. Then you can start sanding with 320
Thanks Guys, I will try and put more resin on the parts where the fiber is showing. The board is 5'7" so I guess gloss coat will make it heavier?
At 5'7", the amount of resin you'd use for a gloss coat won't even add a pound. I marvel at the way people obsess over a few ounces of weight, when most can't even tell the difference in the way a board rides. If you are paranoid about weight, touch up the exposed spots, sand lightly, and do a spray finish.
“That which can be asserted without evidence, can be dismissed without evidence.”
This is my first board so I am not sure about how much gloss coat really adds on. I read in Greenlights that gloss coat is not recommended for shortboard as it adds on weight. I am not sure if I should start a new thread for a few questions that I have but they are below. I would appreciate if you could advise me. Thanks.
1. How thick should hot coat be?
2. How thick should gloss coat be?
3. What weight is considered heavy for a board with respect to it's length? The board I built feels very heavy for it's size. Used a 4+4/4 glassing.
A sanded gloss board is going to hold up better. A sealer coat of acrylic makes it even better.
A hot coat is also called a sanding coat, or filler coat. Done properly, there shouldn't be much of it left after you sand the board.
Generally speaking, any coat of resin should be as thin as possible.
Most beginner glassers make the mistake of loading too much resin onto a board.
Also, if the board already feels heavy, what are you using as a comparison? Do you mean it feels heavy compared to another board of similar size? Or, does it seem like you added a lot of weght to the blank? A 4/4 + 4 glass job is pretty light, if done right.
I am comparing with my 5'11" CI biscuit. I haven't weigh it but it feels heavier.