Bilt Hamber Dynax-UB | Cavity Wax for high protection Rust Proofing
This is a heavy-duty version of the Dynax S50 designed to go on the underbody of cars.
It's a large (750ml) aerosol spray.
Jack the car up and spray liberally over the underside of the car/ trailer / caravan to protect it from rusting. Ideal for people who live close to the sea or use their vehicles on the beach.
Good for Boat trailers, it might not look pretty but it works.
It was designed for car underbody use in the UK with salt spray on the icy roads, notorious for causing rust.
It won't crack like the bitumen-based normal underbody protectors that dry out in time, crack and then allow water into the metal with the invertible rust that follows.
It leaves a dark brown finish.
Dynax-UB is a high-performance anti-corrosion wax that provides long-lasting steel surface protection.
Dynax-UB contains elastic polymers that create a tougher wax coating that is more resistant to abrasion than normal wax coatings – this property enables this wax to protect vehicle undersides for prolonged periods.
Unlike traditional bitumen underseals, Dynax-UB will not peel. Peeling underbody coatings trap water against the steel surface, accelerating corrosion.
Dynax-UB forms a touch-dry, brown, wax-like film.
Dynax-UB can arrest existing corrosion and provide long-term protection to pre-corroded and corrosion-free surfaces.
Dynax-UB substantially outperforms competitive material in salt-spray trials under conditions of ASTM B117. Salt-spray performance should never be overlooked as vehicle undersides and cavities are always exposed to this attack from winter road salt.
Quick Guide
Aerosol Dynax-UB: Large 750ml aerosol comes with a standard spray head and straw attachment to get into nooks produces professional ‘stippled’ finish.
1ltr Pail Dynax-UB:
The viscous formulation for application with a brush or roller.
5ltr Jerry Can Dynax-UB:
A formulation for use with compressor and suitable spray equipment.
How To Use
Use a brush or roller to apply Dynax-UB. Dynax-UB should be applied to dry surface free of loose, flaky rust or coatings, although the highly polar corrosion inhibitors will arrest existing corrosion.
Dynax-UB will vary in viscosity with temperature; it may appear to have a soft grainy appearance to firm gel. Apply at least two coats to the surface at 24 hr intervals. This first primes the surface and allows subsequent coats to build higher film thickness.
Dynax-UB will provide excellent protection at a wide-range of film thickness. Aim to achieve a uniform dry-film thickness of around 80 – 100 microns.
Please be advised this product cannot be sent by Express Post (Air) only by road