Beger DuraGuard HB

1. Surface preparation 1.1 For uncoated steel, clean with power tools to St 2, free of rust pits (ISO 8501-1:2007); good surface preparation (blasting to Sa 2½) improves performance. 1.2 For primed steel, the primer and shop primer surfaces must be dry, clean and undamaged. 1.3 For coated surfaces, the existing paint system must be undamaged, clean and dry; for repairs, water-jet at WJ3 (NACE No. 5/SSPC-SP 12) or clean rusted areas with power tools to St 2. 1.4 For glossy metal surfaces such as stainless steel, galvanized steel, aluminum and zinc, sand to condition the surface and improve adhesion, then clean off all oil, grease and dirt. 1.5 For the exterior of steel tanks, steel frames or building structures, blast to Sa 2.5 according to ISO 8501-1 or clean with power tools to St 2 according to ISO 8501-1. 1.6 For industrial piping, blast to Sa 2.5 according to ISO 8501-1. 1.7 For concrete, roughen the surface or wash it with a 10% hydrochloric acid solution, then rinse with water or high-pressure water (about 150 bar) to remove dirt

2. Primer system: 2.1 For all types of metal, apply 1-2 coats of Beger RustGuard epoxy anti-rust primer. 2.2 For plaster and concrete, apply Beger C-Guard Sealer clear primer for plaster and concrete. 2.3 For polished plaster and concrete, apply Beger C-Guard Penetrating Sealer clear primer for plaster and concrete, especially polished concrete

3. Topcoat: 3.1 Interior: apply 1-2 coats of Beger DuraGuard HB for a high film build. 3.2 Exterior: apply 1-2 coats of Beger Durathane