Sikagard®-6440 S
Sikagard®-6440 S is a rubber-based, quick-drying protective coating in an aerosol can, designed for automotive underbody and stone chip protection. It offers excellent rust-proofing, sound deadening, and impact resistance, making it ideal for quick repairs of vulnerable vehicle parts.
Key Features
Chemical Base: Rubber-based
Color Options: Black or grey
Cure Mechanism: Air-drying
Density (Uncured): 0.78 kg/L
Solid Content: 33%
Application Temperature: 15–25°C
Film Thickness:
Wet: 600 µm
Dry: 200 µm
Tack-Free Time: 30 minutes
Drying Time: 16 hours
Service Temperature: -25 to 80°C
Shelf Life: 24 months (stored between 5–25°C)
Overpaintability: Can be overpainted after 16 hours with most conventional paint systems
Environmental Compliance: Free from heavy metals
Applications
Sikagard®-6440 S is suitable for quick repairs of vulnerable, painted parts of vehicles, including:
Door sills
Wheel arches
Front and rear aprons
Vehicle underbody parts
It adheres well to various substrates, including different paints, metal primers, metals, and PVC. This product is intended for use by experienced professional users only. Compatibility tests with actual substrates and conditions are recommended to ensure adhesion and material compatibility.
Safety & Handling
Surface Preparation: Ensure surfaces are clean, dry, and free of rust, dust, and grease.
Application: Shake the can approximately 40 times before use. Hold the can upright and spray from a distance of about 25 cm in a grid motion to build up a continuous coat. Apply until the desired layer thickness is reached. If a thick layer is required, allow layers to dry in between.
Removal: Fresh Sikagard®-6440 S can be removed from tools and equipment with Sika® Remover-208. Once dried, the material can only be removed mechanically.
Overpainting: Sikagard®-6440 S can be overpainted after 16 hours of drying with most conventional paint systems.
Safety Precautions: Use appropriate personal protective equipment (PPE) and ensure adequate ventilation during application.
