I have a few questions about UV resin that someone maybe can answer : 1). If UV resin cures almost instantly, can you still do cut laps (since you’re supposed to cut the cloth when it’s halfway cured) ? 2.) When laminating, the foam and/or wood will absorb some resin. How will this resin cure ? Any input appreciated. Thanks. Pierre
Pierre:>>> I have a few questions about UV resin that someone maybe can answer :>>> 1). If UV resin cures almost instantly, can you still do cut laps (since > you’re supposed to cut the cloth when it’s halfway cured) ? The UV cure does occur rapidly but not so fast as to keep you from working with your cutlaps. These laps are on the lower/bottom edges and don’t get full UV exposure even outside. Just expose the top enough to handle and flip it over to cut the laps.>>> 2.) When laminating, the foam and/or wood will absorb some resin. How will > this resin cure ? Has never been on a problem for me, I’ve used some pretty heavy tints in UV cure resin and still gotten good results. As long as there is enough UV light to excite the particles of suspended UV catalyst the thermo process occurs and the curing begins. (from the inside out with UV cure!)>>> Any input appreciated. Thanks.>>> Pierre
Pierre:>>> The UV cure does occur rapidly but not so fast as to keep you from working > with your cutlaps. These laps are on the lower/bottom edges and don’t get > full UV exposure even outside. Just expose the top enough to handle and > flip it over to cut the laps. Thanks Tom, I think for my next board I’ll try UV resin then (I’ve had only one experience with laminating and for a first time I remember it was quite stressfull : I had to cover a 9’5 noserider with 4x6oz on top and 2x6oz on bottom with each layer fully overlapping the rails …). Pierre
Thanks Tom, I think for my next board I’ll try UV resin then (I’ve had > only one experience with laminating and for a first time I remember it was > quite stressfull : I had to cover a 9’5 noserider with 4x6oz on top and > 2x6oz on bottom with each layer fully overlapping the rails …).>>> Pierre Have you experienced any more yellowing with UV resins in comparison to commonly used lam and sanding resins when not using tints or pigments?
…if you experence yellowing with using U.V. catalyst, it’s because you’re either using too much cat. or not mixing it well enough.I have never had a problem with U.V. catalyst/resin yellowing,EVER.Herb
Neither have I. In fact the lams tend to be brighter white and stay that way longer. Now, on the other hand if you find yellow blotches or some mystery spots after a lam job it is probably a poorly mixed blob of UV powder. Tom S. > …if you experence yellowing with using U.V. catalyst, it’s because > you’re either using too much cat. or not mixing it well enough.I have > never had a problem with U.V. catalyst/resin yellowing,EVER.Herb
Neither have I. In fact the lams tend to be brighter white and stay that > way longer. Now, on the other hand if you find yellow blotches or some > mystery spots after a lam job it is probably a poorly mixed blob of UV > powder.>>> Tom S. No problems with yellowing on this end. I don’t use any catalyst in lamination, that way you can return unused resin to drum. Makes up for the extra $ you pay for the resin. Aloha, Kokua