Sika 6440 Stone Chip Protection, Underbody Protective Coating, 1L Spray Can.
As an example, if you have a vehicle like a Land Cruiser - you would require 14 - 18 cans for complete coverage.
SikaGard®-6440 is a spray applied anti-corrosion coating for repair and protection of vulnerable painted parts of vehicles such as door sills, wheel arches, front and rear aprons as well as vehicle underbody parts.
SikaGard®-6440 shows good adhesion on different paints, metal primers, metals and PVC.
This product is suitable for experienced professional users only. Tests with actual substrates and conditions have to be performed to ensure adhesion and material compatibility.
Easy applicatIon with no running or dripping.
Good abrasion, impact and road salt resistance.
Various finishes achievable.
Good adhesion performance.
Over paintable.
Very good low temperature behaviour.
Free of heavy metals.
Remains flexible when dry.
Surface Preparation
Surfaces must be clean, dry and free of rust, dust and grease. Bare metal must be pre-treated to enhance corrosion resistance (e.g. uncoated steel, etc).
Application
SikaGard®-6440 can be applied by air-mix guns with an air pressure of 3 - 6 bar. Use either the Sika® SCP Gun (pressure cup type) or the Sika® UBC Gun (vacuum type) to apply the product.
Shake the can approx. 40 times before use. Cover adjacent surfaces prior the spray process. Spray at room temperature and from a distance of approx. 25 cm in an grid motion to build up a continuous coat.
SikaGard®-6440 can be applied without dripping. Apply this product until the desired layer thickness is reached. If a thick layer is required, let layers dry in between. A wide variety of textures can be achieved by altering the spray technique. Do not spray on parts of the brake, engine or exhaust system.
Removal
Uncured SikaGard®-6440 can be removed from tools and equipment with Sika® Remover-208 or another suitable solvent. Once dried, the material can only be removed mechanically. Hands and exposed skin shall be washed immediately using hand wipes such as Sika® Cleaner-350H or a suitable industrial hand cleaner and water.
Do not use solvents on skin.
Overpainting
SikaGard®-6440 is over paintable in a dry state (after 24 hours) with commonly used conventional paint systems. Waiting time can be reduced by accelerated drying at max. 60°C. Due to the wide range of paints adhesion and compatibility tests are necessary.