SEM 40477 Heavy Bodied 2K Epoxy Seam Sealer WHITE 7 oz. Cartridge Automotive

SEM 40477 Dual-Mix Heavy Bodied White Seam Sealer - 7 oz Cartridge - Professional Grade Automotive Epoxy Sealant

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Are you tackling an auto body repair project and need a reliable seam sealer that won't let you down? Look no further than the SEM 40477 Dual-Mix Heavy Bodied Seam Sealer! This high-viscosity, two-component epoxy is designed for sealing interior or exterior seams, joints, and voids on vehicles. Whether you're restoring a classic car, fixing rust damage, or sealing trunk seams, this white seam sealer provides a durable, flexible bond that resists cracking, shrinking, and weathering. It's OEM-approved and perfect for both professionals and DIY enthusiasts.

Key Features:

• High Viscosity Formula: Stays in place on vertical surfaces without sagging or running.
• Two-Component Epoxy: Mixes easily for a strong, permanent seal.
• Color: Clean white finish that can be painted over once cured.
• Size: 7 oz cartridge – enough for multiple applications.
• Quick Cure Times: Working time of 10 minutes at 70°F (21°C), sets in 15 minutes, and ready for topcoat in 30-45 minutes.
• Versatile Use: Ideal for bare metal, primed surfaces, or over existing sealants. Works on cars, trucks, RVs, and more.
• Non-Flammable & Low VOC: Safe for garage use with proper ventilation.

This product is made by SEM Products, a trusted leader in automotive refinishing solutions. It's compatible with most caulking guns (requires a Dual-Mix applicator gun for proper mixing – not included, but available separately).

Applications:

• Sealing roof seams, floor pans, wheel wells, and door skins.
• Filling voids in trunk areas or quarter panels.
• Repairing leaks in joints or overlaps.
• Suitable for both interior (e.g., dashboards, consoles) and exterior automotive surfaces.

Easy-to-Follow Instructions:

Follow these simple steps for professional results. Always wear gloves, eye protection, and work in a well-ventilated area. Test on a small area first.

1. Prepare the Surface: Clean the area thoroughly with soap and water, then degrease using an automotive cleaner or isopropyl alcohol. Remove any rust, old sealant, or loose material with a wire brush or sandpaper (80-180 grit). Ensure the surface is dry and free of contaminants.
2. Load the Cartridge: Insert the 7 oz SEM 40477 cartridge into a compatible Dual-Mix applicator gun (1:1 mix ratio). Attach the included static mixing nozzle to ensure even blending of the two components.
3. Mix and Apply: Dispense a small amount onto a scrap surface to purge any unmixed material (about 2-3 inches). Apply the sealer directly to the seam or joint in a continuous bead. Use a putty knife or spreader to tool it smooth for a factory-like finish. For thicker applications, build in layers if needed.
4. Curing Time: Allow 10 minutes working time to shape the sealant. It sets in 15 minutes at room temperature (70°F/21°C). Full cure takes 24 hours, but you can sand or paint over it after 30-45 minutes.
5. Finishing Touches: Once cured, sand lightly if necessary (220 grit) and apply primer or paint as desired. Clean tools immediately with acetone or lacquer thinner.

Pro Tip: For best adhesion on bare metal, apply a rust-inhibiting primer first. Store unused cartridge in a cool, dry place.

This seam sealer delivers OEM-quality results at a fraction of the cost – don't miss out! If you have any questions, feel free to message me. Check my other listings for more automotive supplies.

Shipping: Ships within 1 business day via USPS Priority Mail. Combined shipping available on multiple items.