Shelf-life of System Three's Marine Spar Varnish.

System Three's Marine Spar Varnish is guaranteed for 3 years from the date of manufacture. However, the shelf-life can be extended if stored well sealed above 50F. After 3 years, we recommend pre-testing a small sample prior to use. 

The batch code can be found on the bottom side of the container. Please contact System Three Resins at to help decipher the batch code.


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