SEM 39477 2K Epoxy Seam Sealer BEIGE 7 oz Cartridge Automotive

Brand: SEM

Warranty: No Warranty

Unit Type: oz

Manufacturer Part Number: 39477

Unit Quantity: 1

California Prop 65 Warning: WARNING: Cancer and Reproductive Harm. www.P65Warnings.ca.gov.

Country of Origin: United States

SEM 39477 Dual-Mix Beige Seam Sealer - 7 oz Cartridge - Professional-Grade Automotive Epoxy for Interior/Exterior Seams

Brand New, Factory Sealed! Perfect for DIY Auto Restoration, Body Work, and Rust Prevention.

Are you tackling a vehicle restoration project or need to seal up those pesky seams and joints on your car, truck, or SUV? Look no further than SEM 39477 Dual-Mix Beige Seam Sealer! This high-quality, two-component epoxy sealer is OEM-recommended and designed for both interior and exterior applications. It provides a flexible, non-sag seal that duplicates factory finishes, ensuring a professional look without shrinking, hardening, or cracking over time. Ideal for bare metal, primed surfaces, or even fiberglass – it's direct-to-metal and paintable right away with most coatings. Whether you're sealing door skins, trunk seams, floor pans, or wheel wells, this beige-colored sealer blends seamlessly for a clean, durable finish. Fast-curing formula means you can get back on the road quicker!

Key Features:

• OEM-Quality Performance: Duplicates factory seam sealers with excellent adhesion to bare metal, OEM paint, epoxy primers, DTM urethane primers, SMC, and fiberglass.
• Flexible & Durable: Retains flexibility, won't shrink, harden, or crack – backed by SEM's Dual-Mix Forever Warranty.
• Fast Cure Times: 10-minute working time, 15-minute set time, and fully cured in 1 hour at 70°F (21°C).
• Paintable Immediately: Compatible with most solvent-based coatings right away; wait 15 minutes for waterborne. Can be painted up to 24 hours without scuffing.
• Versatile Application: Non-sag formula for easy beading or spreading; can even be sprayed for textured finishes with optional accessories.
• VOC Compliant: Check your local regulations, but it's formulated for broad use in auto body shops and home garages.
• Size: 7 oz dual-cartridge for efficient, mess-free mixing with a static mixer (mixers sold separately, like SEM 70011).

This product is brand new and stored in a cool, dry place as recommended. Ships quickly with tracking – perfect for hobbyists, mechanics, or professional detailers!

Easy-to-Follow Instructions:

Using SEM 39477 is straightforward for DIYers with basic tools. Always work in a well-ventilated area, wear gloves, eye protection, and a mask. Test compatibility on a small area first. Vehicle should be at least 70°F (21°C) for one hour before application. Note: Do not use over acid-based self-etching primers, as it may cause cracking or blistering.

1. Surface Preparation (15-30 minutes)

• Clean the seams, joints, or voids thoroughly with a cleaner like SEM Solve or XXX Universal Surface Cleaner to remove dirt, grease, and old sealant.
• For primed surfaces: Sand with P400 grit sandpaper or scuff with a gray scuff pad.
• For bare metal: Sand with P80 grit sandpaper to create a rough surface for better adhesion.
• Blow off dust with compressed air and wipe with a tack cloth to remove lint.
• Re-clean the area with your chosen cleaner and let it dry completely.
• Pro Tip: If the area might flex (e.g., roof skins), apply a two-component urethane or epoxy primer first (like SEM World Class DTM Primer) and let it fully cure before sealing. When in doubt, prime!

2. Mixing (5 minutes)

• You'll need a manual or pneumatic applicator gun (like SEM 71119 or 70039) and a static mixer (SEM 70011 or 70012).
• Insert the 7 oz cartridge into the applicator.
• Remove the cap by prying it up with a flathead screwdriver.
• Equalize the cartridge: Squeeze out a small amount until both components (Part A and B) flow evenly.
• Attach the static mixer to the cartridge end.
• Cut the mixer tip to your desired bead size (e.g., smaller for tight seams, larger for broader areas).
• Hold the applicator upright and dispense until product flows into the mixer. Squeeze out a test bead on scrap material to confirm even mixing – it should be uniform beige without streaks.

3. Application (10-15 minutes working time)

• Apply the sealer directly into the seam or joint using steady pressure on the applicator.
• Work it in or smooth it out with a gloved finger, putty knife, or plastic spreader for a clean finish.
• For a sprayed texture (optional): Use the SEM Quick Spray System (70100) with Versa-Tips (70070) attached to the mixer. Adjust air pressure on your pneumatic applicator for the desired OEM-like pattern.
• While still wet, wipe away any excess with a small amount of VOC-compliant solvent (check local regs).
• Let it set for 15 minutes at 70°F before handling.

4. Painting and Finishing

• Paint immediately with most solvent-based coatings, or wait 15 minutes for waterborne ones.
• If waiting longer than 24 hours to paint, lightly scuff with a gray pad first.
• Full cure takes 1 hour at 70°F – avoid heavy use until then.

Clean Up and Storage

• While wet, clean tools and excess with a compliant solvent.
• Store unused cartridge in a cool, dry place away from heat or flames – shelf life is 2 years.
• Dispose of waste per local regulations.

If you have questions or need tips for your specific project, feel free to message me! Buy with confidence – satisfaction guaranteed or your money back. Thanks for looking!