epoxy ?

[nb2841]

i have had my floor done for about 3 months now. it turned out great, i did gray with sprinkles and 3 coats of clear. i put down a 4x6 rug at the entrance of my shop and i noticed when cleaning the floor today that my clear is turning yellow a little (the area under where rug was placed is not yellow) there is an outline where it was???? is this normal????? it dont look bad but i deffenatly dont want it getting any worse.. thanks

 

[nb2841]

Also it is not in sun much at all. But the shoP is very bright with lights.

 

[thegarageguy]

What products dis you use?

 

[nb2841]

pratt and lambert 2 part industrial epoxy

 

[thegarageguy]

Didn't know they made epoxy...

 

[nb2841]

anyone know why clear epoxy would be turning a hint of yellow????? thanks

 

[LegacyIndustrial]

All epoxy will turn yellow eventually.
Some faster than others.
If the product you purchased doesn't list a UV inhibitor, it will go yellow.

If you want a top-coat that won't yellow, you want urethane. Either conventional or poly-aspartic.

 

[blm77]

If covered spots are not changing color, but the open area is - it is LIGHT and doesn't have to be direct sun. Some products more sensitive some less, like paint or wood floor. If it is a chemical problem - the whole floor would change the color.

 

[munkey]

As others have stated, this is a known drawback of using epoxies. One suggestion might be to remove the mat (for now) and expose that area to more light, and hope that the yellowing "evens out" more. The yellowing would probably be much less noticeable if it was of equal intensity across the entire floor.

 

[nb2841]

how yellow will the epoxy get?

 

[LegacyIndustrial]

nb2841: It will depend on the product and how much UV light hits it.
wqj789: Interior lighting will eventually cause some yellowing but not like day-light.

It's more evident in the lighter colors and clears.
It doesn't literally turn yellow, just not completely clear.

 

[nb2841]

thanks scott. i hope it does not turn any more than it allready is, i spent way too much $ and time to have problems now. lol.