Bilt Hamber Dynax UB Anti Corrosion Wax

Advanced Corrosion Inhibition and Surface Bonding

Dynax-DB is engineered as a high-performance anti-corrosion wax designed specifically for the protection of steel surfaces exposed to harsh environments. Unlike standard barrier coatings, this formulation contains highly polar corrosion inhibitors that actively bond to the metal substrate. These inhibitors allow the wax to arrest existing corrosion while simultaneously providing a robust shield for rust-free surfaces. By forming a chemically active interface, Dynax-UB ensures that the progression of oxidisation is significantly retarded, even on components where complete rust removal is impractical.

Elastic Polymer Technology for Abrasion Resistance

The inclusion of high-molecular-weight elastic polymers distinguishes Dynax-UB from conventional underbody waxes. These polymers create a coating that remains resilient and flexible rather than becoming brittle over time. This elasticity is critical for vehicle undersides, where the protective layer is constantly subjected to mechanical abrasion from road debris, grit, and stones. The resulting tough, wax-like film can withstand physical impacts without fracturing, maintaining the integrity of the protective barrier for prolonged periods.

Superiority Over Bitumen-Based Underseals

Traditional bitumen-based underseals are prone to ageing and thermal cycling, which eventually leads to cracking and peeling. When a coating peels, it creates a void where water and road salt become trapped directly against the steel, accelerating "hidden" corrosion. Dynax-UB is formulated to remain integral to the substrate. Its non-peeling properties ensure that moisture cannot infiltrate behind the coating, providing a reliable seal that protects the structural integrity of the vehicle chassis and floor pans.

ASTM B117 Salt-Spray Resistance

In comparative testing, Dynax-UB substantially outperforms competitive anti-corrosion materials under ASTM B117 salt-spray conditions. This standard is a critical benchmark for automotive protection, as vehicle undersides are frequently exposed to concentrated brine and road salt during winter months. The ability of the wax to resist salt-water penetration and prevent corrosion creep ensures that even in the most demanding climates, the underlying steel remains isolated from corrosive electrolytic attack.

Versatile Delivery Systems and Finish

Dynax-UB is available in multiple formats to suit various application requirements. The 750ml aerosol features a standard spray head and a straw attachment for reaching difficult cavities, producing a professional stippled finish. For larger projects, the 1L pail offers a viscous formulation ideal for brush or roller application, while the 5Ljerry can is designed for use with a compressor and professional spray equipment. Upon curing, the product forms a touch-dry, brown, wax-like film that does not remain tacky or attract excessive road dirt.