---
product_id: 8806151
title: "3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz"
brand: "3m"
price: "€ 43.28"
currency: EUR
in_stock: true
url: https://www.desertcart.it/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-permanently
store_origin: IT
region: Italy
---

# Brushable & paintable Fast skinning in 10-15 mins 12 oz weight 3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz

**Brand:** 3m
**Price:** € 43.28
**Availability:** ✅ In Stock

## Summary

> Seal the Deal! 🛠️

## Quick Answers

- **What is this?** 3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz by 3m
- **How much does it cost?** € 43.28 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-permanently)

## 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

- • **Stays Put:** Designed to resist sagging and dripping, ensuring a clean and professional finish.
- • **Quick Drying:** Enjoy fast skinning in just 10-15 minutes, keeping your projects on schedule.
- • **Unmatched Adhesion:** Achieve high adhesion on both bare metal and painted surfaces for versatile use.
- • **Non-Staining Formula:** Perfect for all-purpose autobody joint and seam sealing without the mess.
- • **Seamless Application:** Experience effortless sealing with a brushable and paintable consistency.

## Overview

The 3MDynatron Auto Seam Sealer Caulk is a 12 oz, permanently elastic sealing solution designed for industrial use. Its grey silicone and rubber composition ensures high adhesion on metal surfaces, with a quick skinning time of 10-15 minutes. This non-staining, waterproof caulk is perfect for achieving a professional finish without the hassle of sagging or dripping.

## Description

Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz

## 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 sale or use.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Weight | 12 Ounces |
| Item Form | Paste |
| Color | Grey |
| Material Type | Silicone, Rubber |
| Surface Recommendation | Metal |
| Water Resistance Level | Waterproof |

## Product Details

- **Color:** Grey
- **Brand:** 3M
- **Item Weight:** 12 Ounces
- **Liquid Volume:** 12 Fluid Ounces
- **Full Cure Time:** 24 Hours

## Images

![3M Dynatron Auto Seam Sealer Caulk, 550, Grey Color, Permanently Elastic, Fast-Skinning, Non-Staining, Non-Sagging, 12 oz - Image 1](https://m.media-amazon.com/images/I/61IK8-3wAIL.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.it/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-permanently](https://www.desertcart.it/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-permanently)

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-24*