Novol 37701 Gravit 640 Cavity Protection (1L) – Deep-Penetrating Rust Defense
Protect your vehicle’s hidden vulnerabilities with Novol Gravit 640, a high-performance, one-component wax-lanolin preservative. Specifically engineered for the long-term protection of closed cavities, this 1-litre unit is the professional choice for rust-proofing door interiors, sills, frame members, and structural pillars.
Its advanced formula is designed to displace moisture and creep into the tightest crevices, forming a durable, flexible, and water-repellent barrier that stops existing corrosion and prevents new rust from forming.
Key Features & Benefits
- Superior Penetration: Exceptional "creep" properties allow the wax to flow deep into joints, folds, and seams where rust typically starts.
- Moisture Displacement: Actively repels and removes moisture from the substrate, making it effective even on slightly damp internal surfaces.
- Flexible Protective Film: Dries to a brown, waxy, and non-cracking coating that remains elastic to accommodate vehicle vibrations and temperature changes.
- Salt & Water Shield: Provides a robust chemical barrier against road salt and water ingress, essential for winter driving conditions.
- Professional Grade Formula: A specialized blend of wax and lanolin that contains no asphalt or bitumen, ensuring it won't dry out or peel over time.
Common Application Areas
The Novol Gravit 640 is a "must-have" for comprehensive vehicle preservation, targeting:
- Internal Box Sections: Rocker panels (sills), chassis rails, and cross-members.
- Door & Trim Cavities: Inside door skins, tailgates, and bonnet reinforcements.
- Exterior Joints: Crevices and overlap joints prone to "edge rust."
Application Mastery
For maximum coverage, Novol Gravit 640 should be applied using a pneumatic UBS gun equipped with a flexible 360-degree injection wand. This allows you to reach deep into boxed sections that are otherwise inaccessible.
Steps for Success:
- Preparation: Ensure cavity drain holes are clear. If possible, blow out dust and loose debris with compressed air.
- Application: Insert the wand fully into the cavity and retract it slowly while spraying to ensure an even coating of all internal walls.
- Cleanup: Excess material can be removed using mineral spirits or a dedicated solvent degreaser.
Expert Insight: For older vehicles or restoration projects, Gravit 640 is an excellent "preventative maintenance" step after welding repairs to ensure the fresh metal is instantly sealed against the elements.
