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Just to clarify, would I layup in sunlight working quickly, or under proper uv protection then moving to sun once done?
Always use the UV Sun cure polyester resin in a shaded area and bring the board out in the sunlight to cure. As soon as the resin is exposed to UV rays it starts curing. Takes about 3 minutes in the sun to fully cure.
Going to use this on an mdf enclosure to waterproof it. It will be painted . Does this require a catalyst if it is not going to be used on a traditional surfboard application?
As long as the sun's UV rays can hit the resin no catalyst is needed for the resin to cure. For surfboards, when installing fin boxes and leash plugs MEKP catalyst is required since the UV rays will not shine in the pockets.
Hello, I plan to use this product in molds to make jewelry and other crafts. Is it completely clear or does it have a tint of color?
In volume UV Solar Cure Polyester Surfboard Resin has bluish hue due to the fact that it has a UV stabilizer additive. When used in a lamination of surfboards this is not visible.
Are there any disadvantages compared to normal (non-uv) polyester resins?
UV cured polyester resins are a bit more brittle than MEKP calaysed resin because it cures faster and does not have time for proper molecule cross-linking. Also no opaque pigments can be added and the UV resin will not cure in areas that UV rays cannot penetrate. We suggest to always put a drop or two of MEKP hardener with each use to ensure the resin cures.
UV cure resin is great for providing unlimited time to finish your project and get full saturation before exposing to UV rays and curing.
Is this product suitable for silicone mold resin jewelry to be cured with a UV (nail) lamp?
Yes the UV cure polyester resin will cure under a UV nail lamp radiation.