---
product_id: 8806151
title: "3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging"
brand: "3m"
price: "€ 73.43"
currency: EUR
in_stock: true
category: "3 M"
url: https://www.desertcart.gr/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast
store_origin: GR
region: Greece
---

# Waterproof & non-sagging formula Fast skinning in 10-15 mins High adhesion on metal & paint 3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging

**Brand:** 3m
**Price:** € 73.43
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it fast, seal it right — because your work deserves no less!

## Quick Answers

- **What is this?** 3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging by 3m
- **How much does it cost?** € 73.43 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast)

## 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

- • **Unshakable Grip:** Superior adhesion bonds seamlessly to both bare metal and painted surfaces, ensuring lasting durability.
- • **Speedy Seal Mastery:** Fast-skinning formula sets in just 10-15 minutes, so your projects move at the pace of your ambition.
- • **Stay-Put Confidence:** Non-sagging and drip-resistant formula means your seal stays exactly where you want it—no mess, no stress.
- • **Clean & Professional:** Non-staining, waterproof sealant designed for autobody joints, delivering a sleek, professional-grade finish every time.
- • **Flawless Finish Ready:** Brushable and paintable consistency lets you customize your finish without compromise.

## Overview

3M Dynatron Auto Seam Sealer Caulk 550 is a 12 oz grey, fast-skinning, permanently elastic sealant designed for autobody joints. It offers excellent adhesion to bare metal and painted surfaces, cures in 24 hours with handling time of 10-20 minutes, and features a non-sagging, non-staining, waterproof formula ideal for professional industrial use.

## Description

"Dynatron™ Auto Seam Sealer Caulk 550 is a fast-skinning, permanently elastic, non-sagging formulation that is brushable and paintable. This sealer provides excellent adhesion to bare metal or painted surfaces and is a non-staining, all-purpose autobody joint and seam sealer. Cure Time: 24 Hours Handling Time: 10-20 Minutes Work Time: 10 Minutes".

## Features

- EASY APPLICATIONS: Brushable and paintable consistency
- HIGH ADHESION: Works on both bare metal and painted surfaces
- FAST SKINNING: Starts in about 10 to 15 minutes
- STAYS IN PLACE: Less likely to drip, sag or run out of gaps being sealed
- NON-STAINING: For all-purpose autobody joint and seam sealing
- For industrial/occupational use only. Not for consumer use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005RNFBMC |
| Best Sellers Rank | #92,145 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #238 in Adhesive Caulk #478 in Industrial Sealants #41,722 in Hardware |
| Brand Name | 3M |
| Color | Grey |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,143) |
| Included Components | Dynatron 550 Auto Seam Sealer Grey Caulk - 12 oz. |
| Initial Hardening Time | 15 minutes |
| Item Form | Paste |
| Item Type Name | 3M Dynatron Auto Seam Sealer Caulk |
| Item Weight | 12 ounces |
| Liquid Volume | 12 fluid ounces |
| Manufacturer | 3M |
| Material Type | Rubber, Silicone |
| Model | 550 |
| Number of Items | 1 |
| Part Number | 550 |
| Surface Recommendation | Metal |
| UPC | 076308005504 |
| Unit Count | 12 Ounce |
| Warranty Description | As labelled |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** 3M
- **Color:** Grey
- **Full Cure Time:** 24 hours
- **Item Weight:** 12 ounces
- **Liquid Volume:** 12 fluid ounces

## Images

![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging - Image 1](https://m.media-amazon.com/images/I/61IK8-3wAIL.jpg)
![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging - Image 2](https://m.media-amazon.com/images/I/61p8iDP+ITL.jpg)
![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging - Image 3](https://m.media-amazon.com/images/I/61xEVsrlgTL.jpg)
![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging - Image 4](https://m.media-amazon.com/images/I/61+Hg-2bfEL.jpg)
![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Fast-Skinning, 12 oz | Permanently Elastic; Non-Staining; Non-Sagging - Image 5](https://m.media-amazon.com/images/I/71mZM2MbpNL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: Is this safe to apply to bare metal or should the surface be primed first?**
A: Clean bare metal is fine.

**Q: What is the recommended ambient temperature range for applying this seam sealer?**
A: I use it between 50 and 90. Near 90 it almost skins too fast. I smooth it out with mineral spirits on a finger.

**Q: is it paintable?**
A: It says it's paintable, but I have not tried to paint it.

**Q: Can I fill a vertical seam without it running? Is it thick enough to stay in place on a vertical panel?**
A: Absolutely, vertical application can be applied. I did it.

## Frequently Bought Together

- 3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz
- Seymour 20-1675 PBE Professional Primer, Self Etching/Weld Through Gray
- 3M Professional Grade Rubberized Undercoating, Corrosion, Water and Salt Spray Resistant, 03584, 16 oz. Aerosol

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**Shop now:** [https://www.desertcart.gr/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast](https://www.desertcart.gr/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-08-14*