---
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: "₨1287"
currency: SCR
in_stock: true
category: "3 M"
url: https://www.desertcart.sc/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast
store_origin: SC
region: Seychelles
---

# Non-sagging, drip-resistant 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:** ₨1287
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it fast, seal it right — the pro’s choice for flawless finishes!

## 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?** ₨1287 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/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

- • **Fast Skinning Formula:** Starts curing in just 10-15 minutes to speed up your workflow
- • **Permanently Elastic Seal:** Durable flexibility that withstands decades of wear
- • **Non-Staining & Waterproof:** Keeps surfaces pristine and protected against moisture
- • **Brushable & Paintable Consistency:** Effortless application with smooth finish every time
- • **Superior Adhesion on Bare & Painted Metal:** Reliable bonding for flawless autobody seam sealing

## Overview

3M Dynatron Auto Seam Sealer Caulk 550 is a professional-grade, grey-colored, 12 oz caulk designed for autobody seam sealing. It features a fast-skinning, permanently elastic, and non-sagging formula that adheres strongly to both bare metal and painted surfaces. Brushable and paintable, it cures fully in 24 hours while resisting stains and moisture, making it ideal for durable, long-lasting automotive and industrial seam sealing.

## 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.sc/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast](https://www.desertcart.sc/products/8806151-3m-dynatron-auto-seam-sealer-caulk-550-grey-color-fast)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-08-14*