3M 1/10 Gal Tan Ultrapro Autobody Sealant (8300)
The 3M 1/10 Gal Tan Ultrapro Autobody Sealant (8300) is a heavy-bodied, solvent-based seam sealer designed for professional automotive body repair. It offers a fast-curing, flexible seal that prevents cracking and water intrusion. Ideal for various exterior body panel applications, it provides low shrinkage for consistent, reliable results. The sealant comes in a standard cartridge for easy application with a caulking gun.
KEY FEATURES AND BENEFITS:
Fast curing: Skins quickly, dries rapidly, and is paintable in 45 minutes, speeding up repair times.
Flexible seal: Remains flexible after curing, preventing cracks caused by vibrations and temperature changes.
Low shrinkage: Minimizes volume loss during drying, ensuring a strong, consistent seal.
Excellent adhesion: Bonds well to properly prepared primer, paint, metal, glass, and aluminum.
Easy application: Standard cartridge fits most caulking guns for convenient use.
Type: Solvent-based, synthetic rubber
Consistency: Buttery paste
Solids Content: Approximately 64%
Flash Point: 40°F (Closed Cup)
Service Temperature: -20 to 180°F
Work Time: 5-10 minutes
Dry Time: 45 minutes (paintable)
Cure Time: 1/8 inch per 24 hours
Size: 1/10 gallon cartridge
Surface Preparation: Clean the surfaces to be sealed, removing any dirt, grease, rust, or old sealant. For best adhesion, prime bare metal.
Cartridge Loading: Insert the sealant cartridge into a standard caulking gun.
Application: Apply a continuous bead of sealant to the seam or joint.
Tooling (Optional): If desired, smooth the sealant with a tooling tool or finger within the 5-10 minute work time.
Drying: Allow the sealant to dry for at least 45 minutes before painting. Full cure takes 24 hours per 1/8 inch of sealant thickness.
BENEFITS OF USING 3M 1/10 GAL TAN ULTRAPRO AUTOBODY SEALANT (8300):
Faster repairs: The quick-curing formula reduces waiting time, allowing for more efficient workflow.
Long-lasting protection: The flexible, low-shrinkage seal prevents cracks and water intrusion, extending the life of repairs.
Professional results: The sealant's excellent adhesion and smooth application provide a professional finish.
Ease of use: The standard cartridge format makes application simple and convenient.
Heavy-bodied formula: Ideal for gap filling.
Resistant to cracking: Withstands vibration.
Suitable for exterior sealing: Can be used in non-passenger compartment areas.
Tan color: Blends with many auto body finishes.
High solids content: Ensures minimal shrinkage.
Product identification
- Brand: 3M
- Model / MPN: 8300
