So i just shapedn a board and there seems to be a good amount of air pockets or bubbles in the foam. im doing a resin tint and don't want dark spots to show. question is, can i pack these holes with foam dust to prevent dark spots in the tint.
Never tried it, but I’d suggest lightweight spackle. Works well on EPS
Noooooooooo! Don’t touch it with spackle. Spackle won’t absorb the resin like foam will. All the spackle spots will show lighter. Don’t have a solution, but it seems I always know from experience what doesn’t work.
"but it seems I always know from experience what doesn't work."
ha ha, i'm right there with you on that one...
betcha Kokua has a/the answer
Howzit chrisp, Sorry, can't help on this one but I think there is a mixture using sugar with something else that might work but my brain is on my moving and can't think real straight right now. Doesn't say what color tint will be used either.I would just glass it and not worry about the tint job and ride it.Aloha,Kokua
Maybe it works with EPS because the whole board is spackled?
What about foam dust and white glue?
Trying to do a foam tint on a less than perfectly finished blank is going to end up being a disaster. Get a better blank and finish your work correctly. When a blank is less than perfect in the glassing stage do what most women try to do with makeup- cover up the faults. Stickers, opaques, swirls all cover up flaws. When you see stuff like this on boards in weird places more likely a coverup, than art.
ghettorat has pegged it. Only way to get a perfect tint is to have a perfect shaped blank. OTOH, opaques cover everything - scratches, pukas, etc. In the old days of production color, it all evened out. The perfect blanks ot fine-sanded to the nth degree and became tints, anything imperfect and/or destined for opaque the shaper could relax and just get contours correct.
I do finish my blanks well. It is just that this blank seems to have an unusual amount of air pockets especially toward the nose. Bad Blank? I don't know? Its a green density US blank, is it more common to have this happen with a higher density blank?
bubbles in the nose due to the foam pump having to pump foam all the way to the nose in the. There will always be pukas in the nose. The should have QA'd it better...you know hold it behind a light, or something...then when they fould the holes it could have been sold as a second.
One way to hide the pukas is to pack the holes with foam dust, then leave the dust in the holes and laminate as usual. it will still show some what, but it works better than glue, spackle, or whatever.
Or you can cut a very small piece of foam and shove it in the hole and lightly sand....no glue, just foam, then laminate
If you really want to get all anal, you can mix the foam dust with a very, very, very light tint of your color. just put enough to fill the hole...do not get it on or around the existing foam.....Remember light, because it will darken up as it fills from the bottom of the hole. keep the foam / color/ resin loose, so when you laminate with your color it will still have a chance to let the tint soak in a bit.
All these methods will still show a bit of a puka...............dats jus da way it tis.