---
product_id: 550376276
title: "3M Harvard Marine 4000UV Fast Cure Sealant, Black, 10 oz. Cartridge"
brand: "3m"
price: "R2350"
currency: ZAR
in_stock: true
reviews_count: 5
category: "3 M"
url: https://www.desertcart.co.za/products/550376276-3m-harvard-marine-4000uv-fast-cure-sealant-black-10-oz
store_origin: ZA
region: South Africa
---

# Marine-grade durability Fast curing formula UV resistant & waterproof 3M Harvard Marine 4000UV Fast Cure Sealant, Black, 10 oz. Cartridge

**Brand:** 3m
**Price:** R2350
**Availability:** ✅ In Stock

## Summary

> ⚓ Seal fast, last longer – the ultimate marine adhesive for pros!

## Quick Answers

- **What is this?** 3M Harvard Marine 4000UV Fast Cure Sealant, Black, 10 oz. Cartridge by 3m
- **How much does it cost?** R2350 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/550376276-3m-harvard-marine-4000uv-fast-cure-sealant-black-10-oz)

## 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

- • **UV Shielded:** Advanced UV resistance protects seals from sun damage and aging.
- • **Blackout Performance:** Sleek black finish blends seamlessly with marine rubber surfaces for a professional look.
- • **Seal with Confidence:** Premium marine-grade adhesive designed to withstand harsh water environments.
- • **Speed Meets Strength:** Fast cure technology ensures quick project turnaround without compromising durability.
- • **Waterproof Guarantee:** 100% waterproof sealant that keeps your marine equipment safe and secure.

## Overview

The 3M Harvard Marine 4000UV Fast Cure Sealant is a black, rubber-compatible adhesive designed specifically for marine surfaces. It offers fast curing, superior UV resistance, and waterproof protection, making it ideal for sealing and bonding in demanding aquatic environments. Packaged in a convenient 10 oz cartridge, this sealant combines professional-grade durability with quick application to keep your marine projects secure and looking sharp.

## Description

3m 14316 Marine Adhesive Sealant 4000 Uv

Review: This is the good stuff! - Great product and does much.
Review: Retard dans l'expédition - Sceller les fenêtres d'un vr en fibre de verre. Le produit est parfait, mais j'ai dû retarder la fin de mes travaux parce qu'il est arrivé 3 jours plus tard que prévu. Sinon très satisfaites!

## Features

- 3M 4000UV Fast Curing Sealant, Black, 10 oz Cartridge.
- A single-component sealant that cures to form a firm, rubberized, waterproof seal.
- Its flexibility allows for the dissipation of stress caused by shock, vibration, swelling, or shrinkage.
- Use above or below the waterline. Superior UV resistance properties
- Doesn't stick in less than 2 hours and cures in 24 hours.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08XY2MN7W |
| Best Sellers Rank | #39,379 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #231 in Hardware Sealers |
| Brand | 3M |
| Brand Name | 3M |
| Color | BLACK |
| Compatible Material | Rubber |
| Customer Reviews | 4.3 out of 5 stars 40 Reviews |
| Global Trade Identification Number | 00076308143169 |
| Included Components | 3m 14316 Marine Adhesive Sealant 4000 Uv |
| Item Dimensions | 25.4 x 7.6 x 5.1 centimeters |
| Item Form | Paste |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 25.4 x 7.6 x 5.1 centimeters |
| Item weight | 1 Pounds |
| Manufacturer | Harvard Marine |
| Material | Rubber |
| Material Type | Rubber |
| Number of Items | 1 |
| Part Number | 14316 |
| Style | Compact |
| Style Name | Compact |
| Surface Recommendation | marine surfaces |
| UPC | 076308143169 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Waterproof |
| Water resistance level | Waterproof |

## Product Details

- **Brand:** 3M
- **Item dimensions L x W x H:** 25.4 x 7.6 x 5.1 centimeters
- **Item weight:** 1 Pounds
- **Material:** Rubber
- **Style:** Compact

## Images

![3M Harvard Marine 4000UV Fast Cure Sealant, Black, 10 oz. Cartridge - Image 1](https://m.media-amazon.com/images/I/51lUIygwKWL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ This is the good stuff!
*by M***N on 7 August 2026*

Great product and does much.

### ⭐⭐⭐⭐ Retard dans l'expédition
*by G***G on 9 June 2024*

Sceller les fenêtres d'un vr en fibre de verre. Le produit est parfait, mais j'ai dû retarder la fin de mes travaux parce qu'il est arrivé 3 jours plus tard que prévu. Sinon très satisfaites!

### ⭐⭐⭐⭐⭐ Recommend!
*by J***H on 15 May 2026*

This stuff is amazing! I use this for waterproofing and re-caulking panels and seals around my motorhome and boat.

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**Shop now:** [https://www.desertcart.co.za/products/550376276-3m-harvard-marine-4000uv-fast-cure-sealant-black-10-oz](https://www.desertcart.co.za/products/550376276-3m-harvard-marine-4000uv-fast-cure-sealant-black-10-oz)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-11-07*