Hi VFB,
The product is called Loon Knot Sense, and flytiers have been using it in place of epoxy in fly patterns. To harden, you simply expose it for a few seconds to an ultraviolet light, which I already have. Sunlight will also cure the product in about a minute.
Product description:
A water-based, polyurethane formula for building colorful, glossy heads and bodies on your favorite fly patterns. One component, low odor, replaces messy epoxies in many applications. Available in black, clear, red, glo pink, glo orange, and glo yellow (with applicator brush).
A question to VFB's resident chemists and physicists: what is the principle behind this product? Why does UV light cause the product to cure and harden?
Here is a link to a fly tied by Rich Lewis using the Loon Knot Sense product.
<http://www.flyanglersonline.com/flytying/fotw2/092704fotw.html>
thanks, Wes Wada Bend, Oregon
"It runs up against the laws of physics. It's like putting nine women together and trying to make a baby in one month."
