Hey guys,
im currently working a polyurethane blank i just finished shaping and i am ready for glassing the only problem is when i was ordering some resin i wanted to try a new UV product so i bought this new vinyl ester EPOXY uv-cure resin… I had mistaken the product for the same looking polyester product above and had accidently ordered the epoxy… is there any hope for me to use this new uv-cure epoxy resin i had just ordered to glass my polyurethane blank with???
Rowland
sure ,,, you can use epoxy on polyurathane
do i need to have a specific cloth for epoxy because i just have the cloth that i would use with polyester?
you can use the same glass
oh ok great!
ok sweet im good to go
You didn't make a mistake! Vinyl ester epoxy is
only part epoxy and works just like poly. You need to
squeege it into the foam instead of soaking it. It is a
bit lighter and flexier due to the epoxy component. I
use it for customers that want a bit more durable board
but can't afford to go with the price increase that comes
with RR. You also can't use it with polystyrene as it will
melt the foam!!!
hang on… in know vinylesters are good for lam, but is this the product you’re talking about? http://www.solarez.com/productsnew/zerovocqt.html
from the product description it sounds like its designed mainly as an isolator between foam and other resin systems. doesn’t actually mention suitability for glassing.
I would check carefully first. sounds like lam amounts could cause problems as opposed to thinner layers.
The uv-cure vinylester resin that Wahoo sells under the Solarez name has been around for quite a while. It supposedly contains about 20% epoxy but you still can’t put it on EPS or XPS foam. It doesn’t throw off as much in the way of VOCs as polyester resin but there’s still quite a bit. You might be able to laminate a board in epoxy in your living room but you wouldn’t even consider it with this stuff.
The uv-cure “epoxy” that Wahoo sells (called Zerovoc) is pricey. You’d know it if you bought that stuff. Wahoo also sells a standard cure epoxy resin, although it’s not on their website. I saw a sample of the stuff - it looks to be pretty clear and very flexy. The resin had been poured into a 1" x 3" cylindrical shape. I watched him put a 20* bend into it by bending it around the edge of a bookshelf and it sprang back to it’s original shape in about 20 seconds.
Flex in resins is a tricky thing, though. Me not understand. I want to try it but I’m going to do some test panels first.
Vinylester. No drama. Stronger and a little lighter than poly and not much more expensive. I’ve had my best finishes with a VE lam and a regular (not uv) PE hotcoat.
The only downside with that resin (for me) is it’s a little amber and it does tend to yellow. I use tints to get past that.
I’d think going to the source. Call Solarez, their phone number is on the web site.
gdaddy… i found out apparently from my blank supplier, he said that if you spray a urethane coat over the finished gloss coat after everything, then the yellow tint wont show up