---
product_id: 337696429
title: "SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon"
brand: "seal-once"
price: "818.62 DT"
currency: TND
in_stock: true
category: "Seal Once"
url: https://www.desertcart.tn/products/337696429-seal-once-marine-ready-mix-wood-sealer-and-stain-coastal
store_origin: TN
region: Tunisia
---

# UV-stable marine-grade protection Ultra-low VOC, eco-friendly formula 10-year water damage warranty SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon

**Brand:** seal-once
**Price:** 818.62 DT
**Availability:** ✅ In Stock

## Summary

> 🛥️ Seal your space with marine-grade confidence—because your wood deserves the best!

## Quick Answers

- **What is this?** SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon by seal-once
- **How much does it cost?** 818.62 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/337696429-seal-once-marine-ready-mix-wood-sealer-and-stain-coastal)

## Best For

- seal-once enthusiasts

## Why This Product

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

## Key Features

- • **Long-Lasting Defense:** Enjoy up to a decade of water resistance on vertical surfaces—no peeling, no flaking.
- • **Eco-Conscious Formula:** Ultra-low VOC and safe for aquatic life, so your outdoor projects stay green and clean.
- • **Marine-Grade Durability:** Shield your wood from saltwater spray and harsh UV rays with a proven marine sealant.
- • **Deep Penetration Technology:** Seals wood fibers at the cellular level for flexible, breathable protection that ages naturally.
- • **Effortless Application & Cleanup:** Water-based formula cleans up easily with soap and water—perfect for busy pros.

## Overview

SEAL-ONCE Marine Ready Mix Wood Sealer and Stain in Coastal Gray is a water-based, ultra-low VOC formula designed specifically for high-moisture environments like docks, decks, and piers. It offers UV-stable, flexible protection that penetrates wood fibers deeply, preventing water damage, rot, mold, and mildew. Safe for aquatic life and backed by a 10-year warranty on vertical surfaces, this sealer ensures your outdoor wood ages naturally with a rich silver-gray finish while maintaining structural integrity.

## Description

SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon | Waterproofer & Stain, Water-Based, Ultra-low VOC formula, For high-moisture areas, Protects wood docks, decks & piers - desertcart.com

## Features

- MARINE SEALANT: Our liquid formula creates a UV-stable coating for protection against the elements, saltwater spray, and water damage. Marine is a protector for outdoor decks, thermally modified wood, and boat docks. Marine is safe for use over open water and is non-hazardous to aquatic life. ** This product is NOT intended for hardwoods such as ipe, mahogany and teak. **
- DECK STAIN: It's water-based, ultra-low VOC, enhancing the extended life of your flooring, dock, and porch. The paint forms a water-resistant shield around wood fibers at the cellular level to help preserve the natural color
- WATERPROOF WOOD SEALER: The wood used on boat docks, decks, and retaining walls near rivers, lakes, oceans, and ponds is subjected to constant moisture. We crafted a sealer, remove stain, and finish all in one, specifically for these installations
- WOOD SEALANT: Our fast-drying protector penetrates wood below the surface, coating the wood fibers at the cellular level, which creates a long-lasting, flexible, breathable barrier. It provides a no-fuss, easy clean-up with soap and water
- SEAL-ONCE: Our user-friendly wood sealers and stains are an effective way to protect your lumber or concrete against water damage. When you use Seal-Once, you have the satisfaction of knowing our products will not harm pets, plants, or people
- NATURAL AGING PROCESS: Marine enables the wood to age naturally without decay, morphing to a rich silver-gray look over time while maintaining structural integrity and preventing wood rot, mold, and mildew
- LONG-LASTING PROTECTION: Warranted to prevent long-standing water accumulation for up to 10 years on vertical surfaces and 6 years on horizontal surfaces with a single application that will not peel or flake

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B098Z2PDR8 |
| Base Material | Wood |
| Best Sellers Rank | #4,762 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #16 in Household Stains |
| Brand Name | Seal-Once |
| Coating Description | Water-based |
| Color | Coastal Gray |
| Compatible Material | Wood |
| Container Type | Jug |
| Coverage | covers up to 250 sq. ft. per gallon |
| Customer Reviews | 4.2 4.2 out of 5 stars (127) |
| Finish Types | Penetrating |
| Included Components | Outdoor Stain |
| Item Dimensions | 9 x 7 x 9 inches |
| Item Weight | 9 pounds |
| Liquid Volume | 1 gallons |
| Manufacturer | U C COATINGS |
| Manufacturer Part Number | SOMARINEWOOD |
| Material Type | Polyurethane |
| Model Name | Marine |
| Model Number | Marine |
| Number of Items | 1 |
| Opacity | 0.5 inches |
| Paint Type | Water Based |
| Recommended Uses For Product | Protecting wood docks, decks, piers, and other wood surfaces in high-moisture areas around fresh or salt water |
| Size | 1 Gallon |
| Style Name | Outdoor |
| Surface Recommendation | Decks, Wood |
| UPC | 759126905156 759126569426 |
| Unit Count | 128 Fluid Ounces |
| Warranty Type | Time-based warranty |

## Product Details

- **Brand:** Seal-Once
- **Color:** Coastal Gray
- **Material:** Polyurethane
- **Model Name:** Marine
- **Surface Recommendation:** Decks, Wood

## Images

![SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71h-LYfZNDL.jpg)
![SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon - Image 2](https://m.media-amazon.com/images/I/51M7Vq9sbZL.jpg)
![SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon - Image 3](https://m.media-amazon.com/images/I/51-31synIYL.jpg)
![SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon - Image 4](https://m.media-amazon.com/images/I/51suYsxpQdL.jpg)
![SEAL-ONCE Marine Ready Mix Wood Sealer and Stain, Coastal Gray, 1 Gallon - Image 5](https://m.media-amazon.com/images/I/51fKcs4sG8L.jpg)

## Available Options

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

## Questions & Answers

**Q: Can it be used on green treated lumber**
A: Pressure treated lumber has to be dry.

**Q: Can you use a regular wood stain after applying?**
A: Yes the clear MARINE can be painted or stained.  Or you can purchase a tint for SEAL-ONCE and use the MARINE as a sealer and stain.

MARINE Features:
• Clear formula can be painted or stained after treatment
• Tinted formula provides additional UV protection
•  Available in 11 semi-transparent tint colors
• Eco-friendly, Non-toxic; will not harm pets, plants, people or marine life
• Ultra-low VOC, Water based
• Can be applied around or over fresh or salt water
• Flexible, breathable barrier, Stabilizes & protects wood
• Prevents warping, cupping, wood rot & decay
• Resistant to salt water spray
• Prevents mold, mildew & algae growth
• Soap and water cleanup

**Q: I want to use this on a 6x6 wood beam at the opening to my walk-in shower (floor to ceiling). No direct shower spray. Will this seal it?**
A: Yes you may use it for this specific application. As suggested in a comment down bellow, you would want to make sure that it is fully cured before using the shower. Typically it would take 48 hours to cure but it may take longer depending on the environment.

**Q: does this work for the interior of a sauna , safe to sit on?**
A: It dries to a hard, smooth finish, is non toxic and nice to look at.  Would be safe to sit on...other types of recreation may require caution.

## Frequently Bought Together

- SEAL-ONCE Marine Ready Mix - 1 Gallon Penetrating Wood Sealer Waterproofer & Stain (Coastal Gray). Water-Based, Ultra-Low VOC Formula for high-Moisture Areas to Protect Wood Docks, Decks & Piers.
- Linzer 3121 0400 Stain Waterproofing Brush, 4 in.,Brown,WM 3121-0400
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement

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**Shop now:** [https://www.desertcart.tn/products/337696429-seal-once-marine-ready-mix-wood-sealer-and-stain-coastal](https://www.desertcart.tn/products/337696429-seal-once-marine-ready-mix-wood-sealer-and-stain-coastal)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-09-26*