brightside paint

andrew215

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I recently painted the hull of my boat, after prepping it, using 232 and light sanding, I applied the paint and lo and behold I ended up with tiny bubbles all over it. the previous paint was brightside, which I had applied about 3 years ago, but some spots had rubbed off where the fenders (covered in canvas) had rubbed thru to the gelcoat. I therefore decided to paint the whole boat. but these little bubbles have me stumped. I now realize I'll have to sand the things down and redo the sides, (not this year), but any ideas as to what caused these bumps. like small blisters. I used a roller for application.
 

stephenh

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water / moisture in the roller ???

on second thoughts could also be air bubbles - you said you put it on with a roller - did you tip it off with a brush ?
 

Lakesailor

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No need to tip off Brightside with a brush, If you use a small foam roller you just roll down the paint lightly when the roller is exhausted before recharging.
I did that on my boat and got a really nice finish. I thinned 5% as suggested in the literature. Application temperature (both air temp and paint temp) is important as you don't want the paint to start going off before the bubbles - and there will be small ones - have flowed out. In fact I tried tipping of with a brush and it left unacceptable marks
paintrollering.jpg


paintshiny.jpg


paintshiny2.jpg
 

Bejasus

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if you used foam rollers, then you will indeed get lots of tiny bubbles, and the trick is to roll, roll roll them out. It will work and then a light sanding between coats. Final coat same thing with someone following vertically tipping from gunwhale to boot top with a fine tipping brush or as we used, a mohair paint pad. Leave to dry as long as you can a couple of weeks if possible. Cut with Farclas or similar, polish and seal. We used teflon polishes and sealers. Hey Presto. Great finish, and the dirt just hose off. We used Toplac but results should be the same.
 

misterg

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Are these bubbles or 'fisheyes' where the paint has 'pulled back' around a point, showing the bare surface underneath? If the latter, then this is probably a problem with silicones on the surface. Starting from the beginning, you would wipe the surface with a silicone remover (from car paint factor) *before* you do any sanding. I think there are additives you can mix with some paints to counteract this, but I don't know what to do for the best from where you are now /forums/images/graemlins/frown.gif.

Andy
 
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