Tape pulling EPS fill or not??

Hey guys

Just lammed the bottom of my EPS/Epoxy SUP with a yellow tint.

Really happy with the way it turned out.

Only problem is when I pulled the tape after cutting the lap, it pulled a lot of foam balls from along the cut line.

Thought about filling them with spackle but think I will leave it and just let them fill with resin when I lam the deck.

A pin line will cover it all anyway.

How can I avoid this for next time???

Maybe use a less adheasive tape.

I Used the scotch green tape.

Anyone know of a tape that will work better???

Cheers

Hi,

I would definetely spackle. If you don’t, chances are you will get bubbles and pin air in the lam because of the uneaveness in this area which may extend wider than what you can cover with a normal pin line.

IDap fast n final is a vinylester filler made for interior & exterior applications. Most spackle type products are made for interior only applications. fast & final sticks better after its dried.

After you spackle & sand, make sure you have all the dust vac’d up. Then spray a clear coat around the area you are going to spray. Next lay your tape down, but don’t mash it to the foam like a poly blank. Next fog on some more clear coat…the clear coat will seal the tape edge, and keep it from bleeding. Now shoot your color and pull tape. EPS is a pain in the ass to color. That why EPS boards usually come in a wide varity of white! Also most color is done after the hot coat, and usually only on the deck. But your now figuring out all that!

What lb foam was that? I’ve never had any problems with foam over 2#, what size beads?

I always re-spackle those places where the tape pulled up beads. If you don’t, nine times out of ten it will blow air in those spots. Not worth the risk…

I am using 2lb. We dont get fast n final here in OZ. I used red devil which I have been told is just as good.

Well it sounds like I need to spackle them and continue on.

Next time, will be all white I guess, unless I used a less adheisive tape.

Might give it a try next time.

Thanks for the advice.

Cheers

Hey mds…

Its possibly pointless after the fact, but…

The way to avoid any issues with tape on foam is to do your colour on the sanded filler coat. (Just as you will your pinstripe over the pulled beads…)

Any blade cuts directly on EPS can give you issues, as will attempting to paint with a less adhesive tape. (Nothing worse than your tape-work lifting mid-spray…)

Josh

www.joshdowlingshape.com

Hey Josh

I didn’t spray.

I did a resin tint with a cut lap.

Beads only pulled up along the cut line about 3 or so mm thick.

Might have cut into the spackle and made it week along that line which made them pull up.

Have filled them with spackle and have lammed the deck

Seems to be turning out OK and the pin line should cover it.

Will have to think about it if I decide to do it again

Cheers

Cool, got it…yeah…

Cutlaps on polys do the same thing…just tiny ragged line, and so the traditional pinstripe was developed to cover it.

If its only a little bit you could get it on the run in the lam, but take the board from warm to cooling as you work it. Spackle is always a hassle on eps if you need to feather it in against foam, so if you have to go there, blade it down flush as best possible.

Josh

www.joshdowlingshape.com