---
product_id: 37472711
title: "Marine-Tex RM302K 14 oz, Gray"
brand: "marine tex"
price: "$123.67"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.us/products/37472711-marine-tex-rm302k-14-oz-gray
store_origin: US
region: United States of America
---

# Waterproof & marine-grade durability Sandable, drillable & paintable finish High-strength repair compound Marine-Tex RM302K 14 oz, Gray

**Brand:** marine tex
**Price:** $123.67
**Availability:** ✅ In Stock

## Summary

> 🛠️ Fix it once, fix it legendary — Marine-Tex RM302K

## Quick Answers

- **What is this?** Marine-Tex RM302K 14 oz, Gray by marine tex
- **How much does it cost?** $123.67 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/37472711-marine-tex-rm302k-14-oz-gray)

## Best For

- marine tex enthusiasts

## Why This Product

- Trusted marine tex brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Gap-Filling Power:** Creamy paste consistency fills and rebuilds vertical or horizontal surfaces effortlessly
- • **Custom Finish Ready:** Easily sand, drill, tap, and paint for a flawless, professional look
- • **Unmatched Versatility:** Repairs wood, fiberglass, metal, ceramic & more with one legendary compound
- • **Marine-Grade Toughness:** Engineered to withstand harsh marine and industrial environments
- • **Waterproof Structural Reinforcement:** Use with fiberglass tape or cloth to bridge holes and reinforce repairs

## Overview

Marine-Tex RM302K is a 14 oz high-strength, gray repair compound designed for durable, waterproof repairs across wood, metal, fiberglass, ceramic, and plastics. Its creamy paste formula allows easy application on any surface orientation, with the ability to sand, drill, and paint for professional-grade finishes. Trusted in marine and industrial settings, it’s the go-to solution for lasting structural fixes.

## Description

Marine-Tex RM302K 14 oz, Gray

## Features

- Legendary high-strength repair compound designed for filling, bonding and rebuilding wood, fiberglass, ceramic, glass, metal, masonry and many plastics
- Manufactured to the highest standards to meet the harsh demands of the marine and industrial environments, and solve many problems for home, auto and hobby applications
- Creamy paste consistency can be applied on vertical or horizontal surfaces, easily fills gaps, and can be shaped to rebuild damaged components
- Provides waterproof repairs that can be used with fiberglass tape or cloth to bridge holes and reinforce structural repairs as needed
- Marine-Tex can be sanded or ground to shape, tapped and drilled, and finished with most common paints and coatings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Item Package Dimensions L x W x H | 5.51 x 4.25 x 3.27 inches |
| Package Weight | 0.54 Kilograms |
| Item Dimensions  LxWxH | 5.5 x 4.1 x 3.1 inches |
| Item Weight | 14.08 ounces |
| Brand Name | Marine Tex |
| Warranty Description | Warranty |
| Model Name | Marine-Tex RM302K 14 oz, Gray |
| Color | Grey |
| Material | Plastic |
| Suggested Users | unisex-adult |
| Number of Items | 1 |
| Manufacturer | Marine-Tex |
| Part Number | RM302K |
| Style | Industrial |
| Included Components | Marine-Tex RM302K 14 oz, Gray |
| Size | 14 OZ. |

## Images

![Marine-Tex RM302K 14 oz, Gray - Image 1](https://m.media-amazon.com/images/I/610O4E1NWXL.jpg)

## Questions & Answers

**Q: Anyone use it to fill small hole in a pontoon?**
A: The question I would ask you is - how big is “small”? Marine-Tex will adhere to the aluminum great, but you can not thicken like you can epoxy resin to hold it in place over larger cracks or cavities.  I would feel comfortable using it to fill a hole up to 1/8 - 3/16”. It would work well for a larger emergency repair. For a hole of 3/8” or larger, if I didn’t have epoxy resin that I could thicken, I would lay a layer of fiberglass cloth over the hole, after applying Marine-Tex over an area larger than the cloth patch. After that cures, put a second coat of Marine-Tex over the cloth. You can easily sand the Marine-Tex to smooth it all out when done, but don’t sand through the fiberglass.

**Q: Is this pre-mixed?**
A: You simply mix the two ingredients together and it’s ready to use.

**Q: is it light gray or dark gray?**
A: It is a fairly light grey and it can be painted.

**Q: I’m repairing rock chips on the keel of a Black boat hull. Will this stuff be a close match in color?**
A: Short answer - no, it cures out grey. If it is a deep chip, Marine Tex could be used as a thickened epoxy, then covered with gel coat tinted to match boat.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Grind area, mix the two parts then sand and paint! That’s about it!
*by R***. on March 10, 2025*

Quality proven product! Second time using the gray but I have read that the white seems to be easier to work with. Not sure on that. I’ve been impressed with repairs on fiberglass (one repair below the waterline on cracked exhaust collector) .Worked great!

### ⭐⭐⭐⭐⭐ This is great stuff!
*by J***A on May 24, 2024*

I've learned about Marine-tex from a boat mechanic years ago and have used it for many different boat repairs. Mix it well and let it cure according to instructions, it's like epoxy on steroids.

### ⭐⭐⭐⭐⭐ Worked just as described
*by E***S on August 16, 2021*

Easy application, but stiff enough to not sag out of filled holes. Much easier than mixing up a batch of thickened epoxy and easier to sand.

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-28*