Some threads seem to fade from the sun rather quickly. Are there any CP's or finishes that protect against this? Thanks to all who reply.

No. The clearer the finish, the quicker the thread will fade.

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Yes!! Perma Gloss has the highest UV protection of any other finish! If you put another say epoxy finish over it, then that finish will yellow. Perma Gloss was tested extensively in the Florida sun for over a year with no discoloration. I did my own tests on it by putting both white wraps on black blanks and also on yellow, and white blanks for 1 year in my back yard. They were exposed to sun, wind, rain, and show for that period of time. NO YELLOWING!!

That's the finish, not the thread under the finish. PermaGloss doesn't block UV and thread under PG will fade much faster than thread under a yellow/brown epoxy.

PermaGloss doesn't contain any UV inhibitors - it doesn't need them due to the type make up involved. Epoxies, due to the amine hardeners, will all yellow even with UV inhibitors. In fact, the chemicals that are added to these products to inhibit UV are themselves yellow. They aren't there so much to keep the finish clear, but to keep it from structural degradation.

That's the irony - the clearer the finish the faster the threads will fade. The more amber or yellow the finish, the less quickly the thread color will fade.

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In my limited experience....it is the metallic threads that fade the worst. Very color dependent.

Russ in Hollywood, FL.

Tom, that is absolutely not true. I tested it for years. No fading and no yellowing. I don't post anything about this finish that I don't know through extensive testing.

ThreadMaster would be my choice. Read up on it in the link.

[roddancer.com]

You misread my post. PermaGloss will not yellow. It stays water white clear, forever. But, it has no UV inhibitors in it. Doesn't need them. Thread under PG will fade, however, as there is nothing to block UV from reaching it.

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You are probably right about not having UV inhibitors. Years ago when Ralph first had me do the testing for him I tested red thread, black, dark blue and many other colors on different colored blanks and after 1 year totally exposed to weather, I compared those wraps to the original spools of thread. No Loss of Color. Every epoxy finish that I compared it with had significant yellowing and was glazed in appearance. Except for Dura Gloss, which unfortunately is no longer made. It compared very favorably with Perma Gloss. Dick Posey of Lamiglas was kind enough to provide me with dozens of scrap blanks to do the testing, and I probably used about 1,000 yard of thread in the tests. Before Dura Gloss came on the market, Ralph had me test over 20 different variations of resin and hardener. We were trying to get it bubble free and easy to use. Hours and hours of testing in between my being able to make rods.

A test for fading in the Northwest is like putting it in a closet......................................never any sun!

Funny!!:>) One thing that many people don't realize or know, is that UV rays easily penetrate clouds. That is why you can get sunburned on an overcast day. Snow reflects UV rays and that is why you can get what some call a snow or wind burn.. It is actually the reflected UV rays that are even intensified, just like getting a worse sunburn when on the water than when you are on land. Reflected UV rays. It isn't heat that causes fading or yellowing.



Edited 1 time(s). Last edit at 09/01/2013 01:30PM by Randolph Ruwe.