Application
Although HPC® Coating can be applied by non-professionals, we recommend using a certified applicator.
Preparation:
- Surface must be clean and completely dry, with no loose debris or particles, rust, dirt, oil, films or residues of any kind. HPC® Coating will cover previous coatings, provided they are fully adhered to the surface and have no surface gloss.
- Mechanically stir, as formula will tighten and give the appearance of cake or putty. Stirring loosens and relaxes the consistency.
Application methods:
- Graco Texspray RTX 1500 using 2mm nozzle
- Over hot surfaces apply a 50 wet mil (1.25 mm) primer coat to allow a steaming-off and cooling of surface to avoid bubbles, and then increase thickness with additional coats as needed
Applied rate:
- 80 sq. ft./gal. (7.4 sq.m./gal.) as primer
- 2.4 – 9.6 sq. ft./gal. (0.22 – 0.9 sq.m./gal.) with build coats (125 mils – 500 mils dry per coat)
Film thickness:
- 50 mil wet (1.25 mm) as primer
- 125 – 800 mils dry (3 – 20 mm) with build coats depending on need to control different ranges of heat
- Fire Control System 800 mils – 1600 mils (20 mm – 40 mm) as the primer before Omega Fire™ top coat.
Dry times:
- 10 minutes as primer over hot surface, then increase thickness as needed.
- 24 hours to set
Precautions:
- Do not use for exterior applications unless top coated with Super Therm for long term durability
Limitations:
- Do not use for underwater applications
- Not recommended as the only fire protection material to be used in residential or industrial construction
- Do not use as floor coating
- Not UV protected. For external use overcoat with Super Therm®