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Clear vs urethane

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  • Member since
    May 2013
  • From: Florida (from snow to sun)
Clear vs urethane
Posted by PlasticCrafts on Thursday, October 10, 2019 10:46 AM

Hi everyone, I used to use normal clear coat but after a while it would start turning yellowish. Now I use poly urethane but I don't seem to get a real good shine. The can says gloss on it. Is the new clear coats better than years ago as far as yellowing. Any help will be appreciated. Al


  • Member since
    January 2018
Posted by Viperdoug on Thursday, October 10, 2019 12:54 PM

All I use anymore is 2K clear, and that should never yellow.

  • Member since
    May 2015
Posted by Goofy62 on Thursday, October 10, 2019 1:28 PM

Clear enamels yellow very quickly.

The lacquer clear coats that I use will not yellow, but using them is dependant on what type of paint you are using.

Testors clear lacquers can be used over anything, but clears like the Duplicolor that I generally use can only be used over lacquer paints.

A good polishing over whatever you use is very beneficial to achieving a nice shine.

A lot of builders use 2K clears, but they can be difficult to deal with and often have a very limited shelf life.

Personally, I don't use 2K clear, and from what I have heard about it, I will avoid it.

It is very highly toxic and you absolutely need to take precautions by using appropriate protection.




  • Member since
    March 2010
  • From: Midwest
Posted by High octane on Saturday, October 12, 2019 11:21 AM

Years ago I had to spray my R/C boat with Poly Urethane Clear and it stunk at was very toxic also.This was in my open driveway also. Needed to use this paint as the boat needed to be water & fuel proof. I don't recommend using urethanes if you can at all help it.

High octane


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