About Rust-Oleum Heat Resistant Primer 4268
A Heat-Resistant Primer for use on new, bare steel or blasted steel surfaces primed with Heat Resistant Orange Primer 4268.
It provides heat resistance up to 425C dry heat in sheltered or interior environments.
- Heat resistant up to 425C
- Contains rust inhibiting pigments
- To be coated with Heat Resisting Aluminium Topcoat
Remove grease, oil and all other surface contaminations with ND14 Cleaner Degrease or high pressure (steam) cleaning.
Prime with Heat Resisting Primer 4268.
Sand previous coatings which are in good condition to roughen the surface slightly.
The surface must be clean and dry during application.
Shake thoroughly and allow to settle for 10 minutes prior to application.
Application and Thinning
Brush: Up to 10 vol. Thinner 150. Use natural bristles, longhair brushes.
Roller: Up to 10 vol. %; Thinner 150. Use medium pile, polyamide (perlon 8 -12 mm) rollers. Roller application may require 2 coats to achieve recommended dry film thickness.
Air-atomised spray: 10-20 vol.%; Thinner 150. Gravity cup and pressure cup.Tip size: 1.2 -1.8 mm. Atomizing pressure: 2 - 4 bar.
Airless spray: If required up to 5 vol. %; Thinner 150.Pneumatic and electric airless equipment.Tip size: 0.013-0.015 inch.Fluid pressure: 130 - 200 bar.Check wet film thickness, avoid excessive film thickness.