Overview
LeesonGrip 3-1VHB (PU4018/10) is a three-component solvent-free urethane system which when used with, for example, 3-5mm aggregate gives a High Friction Anti-Skid surface.
Urethanes cure rapidly especially at low temperatures allowing earlier opening of sites to traffic. This is a significant advantage when application is made at night when temperatures are low.
Applications
- Bridges
- Loading Ramps/Areas
- Heavy Duty Road Dressing
See all applications in our Technical Data Sheet
See all applications in our Technical Data Sheet
How to use
- Surface Preparation – Bituminous Surfaces
The road surface should have a texture depth of between 0.5mm and 2.0 mm as determined by the sand patch test. All imperfections in the road surface should be repaired prior to laying the product.
The surface to be treated must be clean, free from frost, ice, and road salt. The surface should also be sound, dry, and free from dust and any loose material. Any visible oil should be removed with a detergent solution, flushed with water and the surface allowed to dry.
We also have available a cementitious scratch coat system (D5126), for filling porous asphalt to reduce topcoat consumption. - Surface Preparation - Concrete and timber
- Surface Preparation - Steel
It is to be shot blasted to SA2.½, ~60-70 micron surface roughness, or scabbled to remove the surface of the steel. The steel should then be primed, within 2 – 3 hours of shot blasting, with PU5015, and allowed to cure for minimum 3 hours, maximum 23 hours before application of the PU4018/10 Part A resin. For optimum performance the resin should be applied to a primed surface which is less than 15 hours old.
- Mixing and Application
Mix A component well before addition of B and C component. Add 1 part by weight of PU4018/10 Part B (curing agent) to 2.38 part by weight of PU4018/10 Part A (resin) and mix until a mass of uniform colour is obtained. Add sand mix and mix until uniform. The surface is then coated with the blend within 10 minutes (@ 20°C) at a coverage rate of 4-5 kg per m2 (dependant on surface porosity). The resin should then be allowed to self-level to give total coverage. The non-slip aggregate (moisture content less than 0.4%) is then scattered over the resin within 5 minutes (@ 20°C) excess aggregate can be removed after 2 hours or when the resin has cured sufficiently. The site can be reopened to traffic after 4 hours, depending on ambient temperature, or when the binder is hard to the touch. DO NOT USE IN TEMPERATURES BELOW 5°C
