#500 Retarding Thinner can be added to the Permalac Original, Permalac EF, or Permalac NT. It should be used to extend flow time and prevent solvent blush when working in high temperatures or high relative dew points. This will make Permalac take around an hour to set up. Use between 2-5%. Use when humidity exceeds 85%.
UPS requires an additional hazardous materials fee for one gallon or larger containers. UPS also requires special spill-resistant packaging for one gallon or larger containers. You can avoid these fees if you order in quarts.
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