3M Heavy-Bodied Seam Sealer forms a smooth epoxy bead for OEM-grade seal appearances.
3M Heavy-Bodied Seam Sealer dual-syringe mixing system enables clean, consistent results.
3M Heavy-Bodied Seam Sealer non-flowing formula provides stable bead on vertical seams.
3M Heavy-Bodied Seam Sealer offers quick cure for efficient automotive sealing tasks.
3M Heavy-Bodied Seam Sealer self-mixing system ensures consistent formulation every use.
3M Heavy-Bodied Seam Sealer seals vertical and horizontal seams for durable results.
3M Heavy-Bodied Seam Sealer applied to door skins and floor pans for protection.
3M Heavy-Bodied Seam Sealer in 200 ml black cartridge for automotive seams.
3M Heavy-Bodied Seam Sealer suitable for roof and trunk seam applications.
3M Heavy-Bodied Seam Sealer forms a smooth epoxy bead for OEM-grade seal appearances.
3M Heavy-Bodied Seam Sealer dual-syringe mixing system enables clean, consistent results.
3M Heavy-Bodied Seam Sealer non-flowing formula provides stable bead on vertical seams.
3M Heavy-Bodied Seam Sealer offers quick cure for efficient automotive sealing tasks.
3M Heavy-Bodied Seam Sealer self-mixing system ensures consistent formulation every use.
3M Heavy-Bodied Seam Sealer seals vertical and horizontal seams for durable results.
3M Heavy-Bodied Seam Sealer applied to door skins and floor pans for protection.
3M Heavy-Bodied Seam Sealer in 200 ml black cartridge for automotive seams.
3M Heavy-Bodied Seam Sealer suitable for roof and trunk seam applications.

3M Heavy-Bodied Seam Sealer 08308 – Two-Part Automotive Epoxy, 200 ml Cartridge, Black

Overview 3M Heavy-Bodied Seam Sealer 08308 is a two-part epoxy seam sealer designed for a wide range...
Vendor: 3M
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3M Heavy-Bodied Seam Sealer forms a smooth epoxy bead for OEM-grade seal appearances.

3M Heavy-Bodied Seam Sealer 08308 – Two-Part Automotive Epoxy, 200 ml Cartridge, Black

£61.67
3M Heavy-Bodied Seam Sealer forms a smooth epoxy bead for OEM-grade seal appearances.
3M Heavy-Bodied Seam Sealer dual-syringe mixing system enables clean, consistent results.
3M Heavy-Bodied Seam Sealer non-flowing formula provides stable bead on vertical seams.
3M Heavy-Bodied Seam Sealer offers quick cure for efficient automotive sealing tasks.
3M Heavy-Bodied Seam Sealer self-mixing system ensures consistent formulation every use.
3M Heavy-Bodied Seam Sealer seals vertical and horizontal seams for durable results.
3M Heavy-Bodied Seam Sealer applied to door skins and floor pans for protection.
3M Heavy-Bodied Seam Sealer in 200 ml black cartridge for automotive seams.
3M Heavy-Bodied Seam Sealer suitable for roof and trunk seam applications.

3M Heavy-Bodied Seam Sealer 08308 – Two-Part Automotive Epoxy, 200 ml Cartridge, Black

£61.67
Description
Description
x

Overview

3M Heavy-Bodied Seam Sealer 08308 is a two-part epoxy seam sealer designed for a wide range of automotive sealing tasks. It cures quickly to form a tough, durable bead that helps protect seams from moisture, road debris, and typical under-body exposure. Supplied in a 200 ml (6.75 fl oz) cartridge and finished in black, it blends with many common automotive finishes for a clean, OEM-like look. The self-mixing system guarantees the correct mix ratio every time, supporting a reliable cure rate and a strong bead from the first application.

Key Benefits

  • HIGH-PERFORMANCE: Two-part epoxy seals vertical and horizontal seams to match OEM seals
  • METERED MIXING: Dual syringe cartridge eliminates the difficulty and mess of manual mixing
  • NON-FLOWING: Heavy-bodied formula allows easy tooling for matching OEM seam sealer appearances
  • QUICK CURE: Non-sag property aids during vertical applications
  • SELF-MIXES: Makes a perfect formulation every time without mess
  • For industrial/occupational use only. Not for consumer sale or use.

How it Works & Use Scenarios

  • Seals door skins, floor pans, trunk floors, roof seams, and other automotive joints with a durable epoxy bead
  • Self-mixing design ensures a consistent mixture without separate measuring steps, supporting workflow efficiency
  • Compatible with 3M Performance Manual Applicator 08117, Manual Cartridge Applicator 08571, or Performance Pneumatic Applicator 09930 (sold separately)
  • Cure times help plan production: approximately 1 hour total cure under typical workshop conditions; handling 1–10 minutes; work time about 6 minutes; paint time around 15 minutes
  • Color option (black) helps blend with many vehicle surfaces for a seamless finish

What to Expect in Practice

In real-world use, this seam sealer offers a sturdy, paint-ready bead that remains well-formed on both vertical and horizontal joints. The heavy-bodied composition minimizes sag on upright seams, while the metered, self-mixing design reduces waste and setup time. Plan for a modest waiting period before topcoating to maintain the bead’s shape and adhesion.

FAQ

Q: What surfaces is the 3M Heavy-Bodied Seam Sealer best suited for?

A: Ideal for door skins, floor pans, trunk floors, and roof seams, delivering a durable epoxy bead.

Q: How long does the cure take and what tools are recommended?

A: Cure is typically around 1 hour; use with 3M applicators 08117, 08571, or 09930 for best results.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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