About Rust-Oleum Heat Resistant Primer 4268
Heat-resistant primer for use on new, bare steel or blasted steel surfaces and provides heat resistance up to 425°C dry heat in sheltered or interior environments, if recoated with Heat-Resistant Topcoat 4215.
On blasted steel, two coats of Primer 4268 should be applied prior to the application of 4215.
Contains rust inhibiting pigments.
Colour: Orange.
Surface Preparation
Remove grease, oil and all other surface contaminations with ND14 Cleaner Degrease or high pressure (steam) cleaning.
For optimum results remove rust, rust scale, mill scale and deteriorated coatings by abrasive blasting.
Sand previous coatings which are in good condition to roughen the surface slightly.
The surface must be clean and dry during application.
Application and Thinning
Brush: Up to 10% volume Thinner 150. Use natural bristles, long hair brushes.
Roller: Up to 10% volume 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% volume 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% volume 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.
