Are there any tips or suggestions for painting EPS foam? Or is it better to wait until after glassing?
Paint the glass man, EPS has no pores for the resin to bond into, so to compromise the laminate with a layer of paint leads to certain delam! http://www.speedneedle.com.au
You know what I started doing, do a light coat of resin over the glass, then paint on that glass. Then laminate the surfboard and proceed normally. I haven’t finished the first proto-type yet, but I’m working on it. I wonder if the weight is going to be an issue, we’ll see. The board doesn’t feel heavier. -Nick
Mike you clown, you know the answer to this question already. What is the glass going to stick to if you paint the foam? You don’t want delamination do you? I think you better lay off the headies and give whatever you have left to me. Also, you have to be careful distinguishing between expanded polystyrene (EPS) and extruded polystyrene (XPS), which is what we’re using. Jeeeeeshh…
Hi Guys, I hope you don’t mind my jumping in. I’m confused as here is a quote from Greg Loehr giving advise on steps for painting a XPS blank: “Paint the blank with acylic white and laminate hot coat and gloss with a UV stable epoxy. Use Additive F in the gloss and hot coat if you have access to it” Are these steps only applicable to the XPS blanks in which he was speaking about about? I thought I also read you can paint EPS as well (after spackle). Thanks for the help. Herb Bean
Ha ha, another reason epoxy is not for surfboards!
You can paint EPS after sealing the blank. We seal with lightweight spackling compound. You can also painton the outside after the sanding and seal that with a clear acrylic. The comment about painting with white may have been taken out of context. There is no need to paint an EPS blank white unless it’s for some specific reason.
Greg, Just clearing it up for myself. I understand EPS blanks need to be sealed, but do XPS’s need to be sealed as well before painting or can you paint right on the blank? Do you have also product list available via e-mail or website (prices, etc)? Thanks, Herb Bean
This is another funny thing about these things, light weight spackle haha. When you get a ding in a epoxy board that has been spackled and water gets in, and it does, it sucks it in like a vacume, the spackle will start to rot from the inside. That spackle was never ment to get wet and when it does it will start turning a gray rotten color. Its too funny when I see these boards all sunken in and rotting from the inside out. LoL
MKIA - thank you for those valuable insights regarding drywall spackle. Herb Bean
XPE does not need to be sealed. Spackling compound doesn’t rot MKIA. The brown water in your area used to color the foam, back when it leaked. This doesn’t happen with EDRO foam. Catch up dude!
Greg, Do you know of any places to obtain EDRO foam in the Pennsylvania (near Phila.) or New Jersey area? Last can you send me a product list when you have a chance. Thanks for your expert advise. Herb Bean PS, I was being sarcastic, very sarcastic, in my reply to MK.