---
product_id: 6607984
title: "3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL"
brand: "3m"
price: "€ 13.76"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.fr/products/6607984-3m-brushable-seam-sealer-08656-multi-purpose-fast-drying-flexible
store_origin: FR
region: France
---

# flexible & paintable 15-min fast dry brush-mark retention 3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL

**Brand:** 3m
**Price:** € 13.76
**Availability:** ❌ Out of Stock

## Summary

> 🛠️ Seal it fast, seal it right — because your work deserves the pro touch!

## Quick Answers

- **What is this?** 3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL by 3m
- **How much does it cost?** € 13.76 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/6607984-3m-brushable-seam-sealer-08656-multi-purpose-fast-drying-flexible)

## Best For

- 3m enthusiasts

## Why This Product

- Trusted 3m brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Flexible Durability:** Remains flexible after curing, preventing cracks and peeling.
- • **Multi-Surface Power:** Ideal for exterior overlap joints like bulkheads and floor pans.
- • **Speedy Seal Mastery:** Dries in just 15 minutes to keep your project moving fast.
- • **Authentic OEM Finish:** Holds brush marks perfectly for that factory-fresh look.
- • **Pro-Grade Confidence:** Trusted by mechanics for seamless collision repair results.

## Overview

3M Brushable Seam Sealer 08656 is a professional-grade, fast-drying, flexible seam sealer designed for collision repair. It replicates OEM brushed finishes, dries in 15 minutes without running, and remains fully paintable and flexible after curing. Perfect for sealing exterior overlap joints such as auto bulkheads and floor pans, it ensures durable, authentic-looking seams trusted by industry pros.

## Description

"3M™ Brushable Seam Sealer 08656 is ideal for recreating the appearance of OEM brush seals in collision repair. This multi-purpose, fast-drying sealer is designed for brush application to exterior overlap joints such as those on auto bulkheads or floor pans. The sealer is formulated for a flexible, workable seam that holds brush marks for an authentic, like-new appearance. Dry Time: 15 Minutes"

Review: Used to seal firewall - This product worked very well. It was difficult to spread on without a stiff brush and stuck to the brush so I ended up using a plastic knife and it was perfect for what I needed. As the package said, it dried fairly quick(about 15 minutes) so it was imperative to get it in place quickly. Once smoothed out it cured very well. A quality product.
Review: Thick but easy to apply - Bought this product to use on the restoration of my 1974 Beetle. I am a professional mechanic but have never used seam sealer before. I have replaced the floor pans and used this product to seal the joint between the new floor pans and center chassis section. The new Brazilian pans fit fairly good but did leave some substantial gaps 1/8"-1/4" in several locations that needed extra attention. The instructions on the can are vague at best. I purchased several cheap disposable paint brushes to use to apply this product with the expectation that it would be a very thick liquid similar to syrup. The product is more like a putty with the consistency of body filler prior to hardening. I used a 2" putty knife to squeeze the sealer in to the larger seams and simply coated the remaining seam length using the brush. It required working the brush back and forth to work the product into the joints which dislodged many bristles from my cheap brush, but I did mange to do both floor pans with 1 brush (about 16' of seams). Next time I might try one of the sponge brushes or a higher quality bristle brush to eliminate picking the dislodged bristles from the sealer. I used neoprene gloves although this was not a messy event, safety goggles and a respirator. I expected there to be some strong fumes as it is mentioned in some of the other reviews and boy am I glad I used a respirator. My workshop is 16' x 24' with a 6'x8' door. I had the door open and 3 fans running during the application and as soon as I took the respirator off I immediately knew there was no way I was staying in there to do some of the other tinkering I had planned on while the sealer dried. I would say a respirator is absolutely necessary equipment when using this product. My application did not use much of the product at all so I would guess you could do a whole car with this one can. I would purchase this product again.

## Features

- SEALS JOINTS: Formulated for sealing overlap joints in collision repair
- HOLDS BRUSH MARKS: Allows you to easily replicate OEM brushed-look seals
- DRIES QUICKLY: Will not flow or run, helping ensure a top quality job and reduced cleanup
- REMAINS FLEXIBLE: Stays flexible after curing and is fully paintable
- SPECIALLY FORMULATED: Recreates an authentic, like-new appearance
- For industrial/occupational use only. Not for consumer sale or use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000PEW4I2 |
| Best Sellers Rank | #1,534,754 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,774 in Hardware Sealers |
| Brand | 3M |
| Color | Gray |
| Customer Reviews | 4.4 4.4 out of 5 stars (83) |
| Date First Available | April 12, 2012 |
| Global Trade Identification Number | 00051135086568 |
| Is Discontinued By Manufacturer | No |
| Item Form | item_form |
| Item Weight | 2 pounds |
| Item dimensions L x W x H | 4.5 x 4.5 x 4.9 inches |
| Item model number | 08656 |
| Manufacturer | 3M |
| Manufacturer Part Number | 08656 |
| Material | solid |
| Model | 3M Brushable Seam Sealer, 08656, 30.4 oz, 899 mL |
| Number of Items | 1 |
| OEM Part Number | 08656 |
| Product Dimensions | 4.5 x 4.5 x 4.9 inches |
| Special Features | Manual |
| Style | Industrial |
| Surface Recommendation | Miscellaneous |
| UPC | 051135086568 |
| Unit Count | 32.0 Fluid Ounces |
| Water Resistance Level | Water Resistant |

## Product Details

- **Brand:** 3M
- **Item Weight:** 2 Pounds
- **Item dimensions L x W x H:** 4.5 x 4.5 x 4.9 inches
- **Material:** solid
- **Style:** Industrial

## Images

![3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL - Image 1](https://m.media-amazon.com/images/I/71MFXsK1SNL.jpg)
![3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL - Image 2](https://m.media-amazon.com/images/I/81sZRVtT+gL.jpg)
![3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL - Image 3](https://m.media-amazon.com/images/I/81VVtszz8yL.jpg)
![3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL - Image 4](https://m.media-amazon.com/images/I/81FDtKxhs6L.jpg)
![3M Brushable Seam Sealer, 08656, Multi-Purpose, Fast-Drying, Flexible Workable Seams, 1 qt, 946 mL - Image 5](https://m.media-amazon.com/images/I/81JEDZ0NkGL.jpg)

## Questions & Answers

**Q: can I apply this over a coat of por15?**
A: I have applied this product over primers of every kind, including the urethane primers with no issues.. But not over POR15.. I love POR15 for what it does to rust.. May I suggest (if possible) do a test area of the product over your POR15 application.. Swing by an autobody shop and ask if you can have a small container of the 8656 for a test and see what the results are before purchasing the full quart..  That's what I would do..

**Q: Can you paint this?**
A: Is your question?~~ Can your paint over this product? Or Can you paint this on the repair? Im not understanding your question~~ be more specific!

**Q: Is this the old 3M brushable seam sealer we used 20/30years ago, in a new labeled can?**
A: Thanks for asking. This is the same product with a newer updated label. Product has not changed.

**Q: What color does this sealer show when dry?**
A: My can dried white! Great product..if you buy one, the color sample is on the top of the can...they take a dab out of the can from the factory and let it dry on the lid!~~ After it dried WHITE< i sprayed it with Black 3-M undercoating!

## Customer Reviews

### ⭐⭐⭐⭐⭐ Used to seal firewall
*by M***4 on July 10, 2013*

This product worked very well. It was difficult to spread on without a stiff brush and stuck to the brush so I ended up using a plastic knife and it was perfect for what I needed. As the package said, it dried fairly quick(about 15 minutes) so it was imperative to get it in place quickly. Once smoothed out it cured very well. A quality product.

### ⭐⭐⭐⭐⭐ Thick but easy to apply
*by S***F on November 17, 2013*

Bought this product to use on the restoration of my 1974 Beetle. I am a professional mechanic but have never used seam sealer before. I have replaced the floor pans and used this product to seal the joint between the new floor pans and center chassis section. The new Brazilian pans fit fairly good but did leave some substantial gaps 1/8"-1/4" in several locations that needed extra attention. The instructions on the can are vague at best. I purchased several cheap disposable paint brushes to use to apply this product with the expectation that it would be a very thick liquid similar to syrup. The product is more like a putty with the consistency of body filler prior to hardening. I used a 2" putty knife to squeeze the sealer in to the larger seams and simply coated the remaining seam length using the brush. It required working the brush back and forth to work the product into the joints which dislodged many bristles from my cheap brush, but I did mange to do both floor pans with 1 brush (about 16' of seams). Next time I might try one of the sponge brushes or a higher quality bristle brush to eliminate picking the dislodged bristles from the sealer. I used neoprene gloves although this was not a messy event, safety goggles and a respirator. I expected there to be some strong fumes as it is mentioned in some of the other reviews and boy am I glad I used a respirator. My workshop is 16' x 24' with a 6'x8' door. I had the door open and 3 fans running during the application and as soon as I took the respirator off I immediately knew there was no way I was staying in there to do some of the other tinkering I had planned on while the sealer dried. I would say a respirator is absolutely necessary equipment when using this product. My application did not use much of the product at all so I would guess you could do a whole car with this one can. I would purchase this product again.

### ⭐⭐⭐⭐⭐ This stuff works great. I used it on my Jeep wrangler panels
*by K***Y on November 26, 2023*

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-02-25*