I have finished shaping a blank and there is approx 100 small air bubbles that have emerged on the bottom and now visible on the finished board.
Now at the glassing stage (POLY). any ideas on how to hide these to completely make them disappear?
i was thinking a very thin layer of a resin/Q-cell mix (possibly some white pigment to keep bright white). Will this work??
Cheer
Jarred
It'll be nearly impossible to hide them completely since the surface of your q-cell mix will be smooth and the foam is porous. You could also use a light weight wall spackle since the holes are one the bottom and you won't be standing on them. Either one of those options will work just fine and most people might not be able to see them. As the board yellows the fill work will show up so you could just do a pigment lamination on the bottom to cover the bottom.
Great advice above, I would go with the spackle option as its faster and easier to apply…use it straight out of the tub, scrape in with a credit card, if you are neat it shouldn’t require any sanding but make sure you leave it 24 hours to completely dry out before laminating.
Cheers
Rich
www.thirdshade.com
Wall spackle will show… Especially on the new brighter blanks. It shows if you are leaving it clear.
We had almost every blank from one manufacturer come through with the Hundreds of bubbles problem you have. All first quality all shit blanks.
We have several spackles in the shop and they all showed and looked like little cream freckles because the new foam is so much brighter. Some better than others but in the end they all showed.
About the only thing you can do is an opaque on the bottom… to really just cover everything. Even if its white.
Thanks Acqua Glassing,
Do you mean to fill with spackle and then do an opaque??
Is anyone aware of a spackle in Aus.
Hey Jarred, I've used Selleys Spakfilla Rapid. It's a different colour to the foam and a bit heavier than I would have liked it to be, but it did the job. There is a similar product by a different company that's much lighter, but I can't remember the name off-hand. A good piece of advice I remember reading here was that the best one feels like the container is empty when you pick it up - the lighter the better.
Yes, The lightweight stuff is best but if doing an opaque its not going to matter too much.
I didnt realize you were in OZ. You may have a product that matches the blanks down there better than what we have up here.