Was attempting to fix a small hole in my epoxy board (closed cell foam) with Ding-All epoxy resin when I noticed the resin had started eating the foam. I’ve never had any problems with this resin on any of my other epoxy boards although this is the first time I’ve used it with a closed cell foam board. Any ideas what’s causing this?
Concerning the hole itself, it was a fairly small hole up against the FCS plug. Obviously the hole is larger now but nothing dramatic; about 0.5" in diameter and close to 0.5" deep. Would filling the hole with resin and cloth fragments suffice or should I put a small foam plug inside the hole?
No idea why this happened, but as far as the hole is concerned, .5" diameter x .5" deep, I wouldn’t bother with a foam plug. Just mix some type of filler like cavocil or microballoons with the resin to lighten it. then top it with cloth.
There are many epoxies that are not compatible with some EPS boards, especially the 5 minute epoxies. I had a board made in Slovakia (name witheld) where foam melted using an epoxy that was fine with Surftech/Tuflite and domestic EPS. Some XTR boards will exhibit the same problems. I have yet to encounter any EPS board that will react with RR, so I advise that you use that. The 2-part epoxies in the plunger applicators are very convenient, but unless you have past success on a particular board with it, don’t use it. Even if the damage is just a surface crack in the glass, if it’s reactive the foam will melt and you’ll never know it. Usually, the fill will keep blowing air out a small hole if the foam behind it melted.
Howzit bgl500, Had the same thing happen to a friend on a trip to Cabo, at least he was able to find another brand and it worked. Really threw us for a loop. Aloha,Kokua