Promatic Brushing Seam Sealer BSS-1 Grey – 1L High-Adhesion Automotive Seam Sealer | Flexible, Overpaintable, Non-Sag Joint & Panel Sealant

The Promatic BSS-1 Brushing Seam Sealer (Grey, 1L) is a high-quality, thixotropic automotive sealant designed for professionals who demand a clean finish, strong adhesion and long-lasting durability. Ideal for sealing welded joints, overlapping metal panels, chassis seams and bodyshop repairs, this non-sag formula applies smoothly with a brush and cures to a flexible, paintable finish.

Engineered for maximum convenience and reliability, BSS-1 helps prevent moisture ingress, corrosion and vibration fatigue—ensuring repairs remain protected for years.

Key Features:

• High-Adhesion Formula: Bonds securely to bare metal, primed surfaces and painted panels.

• Thixotropic, Non-Sag Consistency: Designed for vertical and overhead applications without running.

• Flexible & Durable Finish: Withstands vibration, movement and temperature changes without cracking.

• Overpaintable: Can be painted with most automotive paint systems for a clean, OEM-style finish.

• Excellent Coverage: Spreads easily by brush, allowing precise application along seams and joints.

• Corrosion Protection: Helps block moisture and contaminants to prevent rust formation.

Ideal For:

• Sealing welded joints

• Door shuts, boot gutters and inner wings

• Floor pans, chassis seams and wheel arches

• Automotive restoration and collision repair

• Bodyshops, mobile repairers and DIY projects

Whether you're restoring a classic car or carrying out professional body repairs, Promatic BSS-1 Seam Sealer delivers a strong, neat and lasting seal you can rely on. A workshop essential for durable, corrosion-resistant finishes.