Belzona 5831

Belzona 5831


A 2-part epoxy coating which once cured forms a barrier coating for the protection of equipment operating under immersed conditions or in contact with aqueous solutions. This solvent-free epoxy coating bonds strongly to steel and other metallic and non-metallic surfaces such as concrete or brick.

Belzona 5831 (ST-Barrier) is specifically formulated for application to wet and oil contaminated surfaces that cannot be dry for application, as well as for underwater applications. The coating displaces water from the surface ensuring maximum adhesion to damp or wet surfaces, even underwater.

Usage areas: The system is specifically designed for applications where water or oil contamination cannot be effectively removed including splash zones and underwater.
TECHNICAL DATA
Mixing ratio (Base : Solidifier)  1:1 by volume  1.75:1 by weight 
Working life  45 minutes at 20°C (68°F) 
Shelf life  5 years 
Adhesion (tensile shear)  Mild steel (clean and dry) - ground: 12.2 MPa (1,770 psi)  Mild steel (clean and dry) - blasted: 13.2 MPa (1,920 psi) 
Adhesion (tensile shear)  Mild steel (underwater) - ground: 10.6 MPa (1,540 psi)  Mild steel (underwater) - blasted: 7.5 MPa (1,090 psi) 
Adhesion (tensile shear)  Mild steel (oil contaminated) - ground: 12.5 MPa (1,810 psi)  Mild steel (oil contaminated) - blasted: 13.8 MPa (2,010 psi) 
Coverage rate  2.5 m2 (27 ft2) / litre at 400 microns (16 mils) 
Shore D hardness  72
Compressive strength  21.2 MPa (3,070 psi) 
CURE TIMES
Temperature  10°C (50°F)  20°C (68°F)  30°C (86°F) 
Light loading  48 hours  24 hours  12 hours 
Full mechanical loading  14 days  5 days  2 days 
Approvals:
ABS Approval
ABS