---
product_id: 4737086
title: "Marine Grade Silicone Sealant, Clear, 3 oz Tube"
brand: "3m"
price: "R642"
currency: ZAR
in_stock: true
reviews_count: 8
category: "3 M"
url: https://www.desertcart.co.za/products/4737086-marine-grade-silicone-sealant-clear-3-oz-tube
store_origin: ZA
region: South Africa
---

# Marine-grade durability Applies straight from tube Cures in 24 hours Marine Grade Silicone Sealant, Clear, 3 oz Tube

**Brand:** 3m
**Price:** R642
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal your adventure with confidence—marine-grade strength that won’t let you down!

## Quick Answers

- **What is this?** Marine Grade Silicone Sealant, Clear, 3 oz Tube by 3m
- **How much does it cost?** R642 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/4737086-marine-grade-silicone-sealant-clear-3-oz-tube)

## 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-Track Repairs:** Cures in as little as 24 hours so your vessel is back on the water faster than ever.
- • **Effortless Application:** No mixing required—apply directly from the tube for quick, mess-free sealing.
- • **Trusted Brand Reliability:** 3M quality ensures long-lasting performance that professionals rely on.
- • **Unmatched Marine Toughness:** Engineered to withstand harsh saltwater and sun exposure without cracking or yellowing.
- • **Versatile Surface Compatibility:** Bonds seamlessly to metal, glass, fiberglass, wood, plastics, and more for all your marine needs.

## Overview

3M Marine Grade Silicone Sealant is a clear, 3 oz tube sealant designed specifically for above-waterline marine applications. It offers superior flexibility and durability against harsh marine conditions, cures quickly within 24 hours, and bonds to a wide variety of surfaces including metal, glass, fiberglass, and wood. Trusted by professionals, it resists yellowing and cracking, ensuring your watercraft stays sharp and sealed for the long haul.

## Description

3M Marine Grade Silicone Sealant is designed for the harsh marine environment. This sealant provides a durable and long-lasting seal.

Review: great sealant, holds up on the water - Used this for sealing some fittings on my boat and it worked exactly as expected, no leaks at all and it's held up through sun and water exposure without cracking or pulling away. The cap seals well so the tube doesn't cure between uses which is a huge deal with silicone products since they can dry out fast. Only minor thing is the dispenser cap threads can be a little finicky if you push sideways on them but that's pretty minor overall. Solid marine silicone from a brand you can trust and I'd buy it again.
Review: Works great. - Needed to seal up around a vhf antenna. Easy to use and easy to clean up.

## Features

- DEVELOPED SPECIFICALLY AS A MARINE SEALANT – Stays tough and flexible for a wide range of uses above the waterline
- VERY VERSATILE – Works on bare and painted metal, glass, paint, fiberglass, non-oily woods, many plastics and abraded rubbers
- EASY TO USE – Applies right from the container and requires no mixing. Curing in as little as 24 hours so you can get back out on the water faster
- HELPS KEEP WATERCRAFT LOOKING SHARP – Won’t turn yellow over time
- DESIGNED TO ENDURE MARINE ENVIRONMENTS - 3M Marine Grade Silicone Sealant is a part of a broad range of adhesive sealants uniquely formulated for the marine market. Designed for reliable sealing performance in harsh marine environments.
- For industrial/occupational use only. Not for consumer sale or use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H8W9V8 |
| Best Sellers Rank | #4,628 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #12 in Silicone Adhesives |
| Brand | 3M |
| Brand Name | 3M |
| Color | Clear |
| Compatible Material | Concrete |
| Customer Reviews | 4.6 out of 5 stars 1,297 Reviews |
| Included Components | 3M 08019 Marine Grade Silicone Sealant, 3 oz, Clear |
| Item Dimensions | 6 x 4 x 4 inches |
| Item Form | Liquid |
| Item Type Name | 3M Marine Grade Silicone Sealant, 08019, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, Moisture Curing, Clear, 3 fl oz Tube |
| Item Weight | 2.08 ounces |
| Item dimensions L x W x H | 6 x 4 x 4 inches |
| Manufacturer | 3M |
| Material | Plastic |
| Material Type | Plastic |
| Model | MG Sil |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | B000H8W9V8 |
| Style | 3 fl oz (Tube) |
| Style Name | 3 fl oz (Tube) |
| Surface Recommendation | Wall |
| Unit Count | 3 Fluid Ounces |
| Water Resistance Level | Water Repellent |

## Product Details

- **Brand:** 3M
- **Item Weight:** 2.08 ounces
- **Item dimensions L x W x H:** 6 x 4 x 4 inches
- **Material:** Plastic
- **Style:** 3 fl oz (Tube)

## Images

![Marine Grade Silicone Sealant, Clear, 3 oz Tube - Image 1](https://m.media-amazon.com/images/I/61S1n0K6nBL.jpg)
![Marine Grade Silicone Sealant, Clear, 3 oz Tube - Image 2](https://m.media-amazon.com/images/I/71+Ss+LtJmL.jpg)

## Available Options

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

## Questions & Answers

**Q: Can. This be used to attach cermamic tiles in a hot tub witch will be under water?**
A: I used it to seal a sailboat. As I know it cannot be used under water. This being said, it resists exposure to elements, it is kind of elastic after curing, but is not very adhesive, you can easily peel it off.

**Q: Will salt water deteroriate this?**
A: Not sure. Used in fresh water only. Great product.

**Q: Will this work good with polyurethane front splitter?**
A: Depends on what it trying to do. It is not a glue, just a premium silicone sealant, made for wet conditions.

**Q: Does this product work to seal cracks in rain boots?**
A: Temporary fix. New boots makes more sense.

## Customer Reviews

### ⭐⭐⭐⭐⭐ great sealant, holds up on the water
*by M***C on April 5, 2026*

Used this for sealing some fittings on my boat and it worked exactly as expected, no leaks at all and it's held up through sun and water exposure without cracking or pulling away. The cap seals well so the tube doesn't cure between uses which is a huge deal with silicone products since they can dry out fast. Only minor thing is the dispenser cap threads can be a little finicky if you push sideways on them but that's pretty minor overall. Solid marine silicone from a brand you can trust and I'd buy it again.

### ⭐⭐⭐⭐⭐ Works great.
*by B***3 on June 17, 2026*

Needed to seal up around a vhf antenna. Easy to use and easy to clean up.

### ⭐⭐⭐⭐⭐ Great Sealant
*by N***E on January 8, 2025*

I love this stuff. I wouldn’t use anything but it. It’s great quality. The smell isn’t strong. It’s not messy. And is great for sealing up lights and stuff to the hull.

## Frequently Bought Together

- 3M Marine Grade Silicone Sealant, 08019, For Boats and RVs, Above the Waterline Interior/Exterior Sealing, Clear, 3 fl oz Tube
- 3M Marine Adhesive Sealant 5200 - Permanent Bonding and Sealing for Boats and Marine Applications - Black - 3 Ounces
- 3M Marine Adhesive Sealant 4000 UV (05280), Medium Strength Flexible Waterproof Adhesive Sealant for Boats and RVs, UV Resistant, Cures in 24 Hours, White, 3 fl oz Tube

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**Shop now:** [https://www.desertcart.co.za/products/4737086-marine-grade-silicone-sealant-clear-3-oz-tube](https://www.desertcart.co.za/products/4737086-marine-grade-silicone-sealant-clear-3-oz-tube)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-08-21*