PLASITE 4550 S is a 100% solids, flake-filled, premium novolac epoxy coating designed for internal steel and concrete substrates. It is a two-component system applied with plural-component or single-leg spray equipment. Plasite 4550 S is generally applied at a total thickness of 20-60 mils (500-1500 microns) in a single-coat application. This product has been tested and is approved for crude oil storage and transportation up to 350°F (177°C). It has superior thermal shock resistance over the range -40° to 350°F (-40 to 177°C).