---
product_id: 12191199
title: "Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon"
brand: "seal-once"
price: "$222.63"
currency: USD
in_stock: true
category: "Seal Once"
url: https://www.desertcart.us/products/12191199-marine-penetrating-wood-sealer-and-waterproofer-clear-1-gallon
store_origin: US
region: United States of America
---

# UV-stable marine-grade protection Ultra-low VOC, eco-friendly formula Penetrates wood fibers at cellular level Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon

**Brand:** seal-once
**Price:** $222.63
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal on lasting wood protection—because your outdoor spaces deserve the best!

## Quick Answers

- **What is this?** Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon by seal-once
- **How much does it cost?** $222.63 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/12191199-marine-penetrating-wood-sealer-and-waterproofer-clear-1-gallon)

## 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

- • **All-in-One Wood Care:** Seals, stains, and waterproofs in a single application—perfect for decks, docks, and outdoor furniture.
- • **Marine-Grade Durability:** Shield your outdoor wood from saltwater spray and harsh UV rays with a proven marine sealant.
- • **Eco-Conscious Protection:** Ultra-low VOC and non-toxic to aquatic life—safe for your family, pets, and the environment.
- • **Deep Cellular Penetration:** Our fast-drying formula penetrates below the surface to create a flexible, breathable barrier that lasts.
- • **Optimized for High-Moisture Zones:** Specifically designed for wood exposed to lakes, oceans, ponds, and poolside environments.

## Overview

SEAL-ONCE Marine Penetrating Wood Sealer and Waterproofer is a clear, water-based polyurethane formula designed to protect outdoor wood surfaces in high-moisture environments. It offers UV-stable, marine-grade protection by penetrating wood fibers at the cellular level, creating a durable, breathable barrier that resists water damage. With ultra-low VOC content, it’s safe for aquatic life and ideal for decks, docks, and outdoor furniture near water bodies. This fast-drying sealer combines stain and waterproofing in one easy-to-use product, extending the life and natural beauty of your wood.

## Description

SEAL-ONCE Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon | Waterproofer & Stain, Water-Based, Ultra-low VOC formula, For high-moisture areas - Hardware Sealers - 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 furniture, 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. NOT intended for wood submerged under water or on wooden boats **
- DECK STAIN: It's water-based, ultra-low VOC, enhancing the extended life of your flooring, siding, 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 wood 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
- SAFE FORMULA: 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, our products will not harm pets, plants, or people
- HIGH-MOISTURE PROTECTION: Specifically formulated for wood installations in high-moisture locations including boat docks, pool decks, walkways, piers and outdoor furniture near ocean, lakes, ponds and rivers
- PENETRATING FORMULA: Deeply penetrates the surface to protect and stabilize wood at the cellular level, creating a durable and breathable barrier that allows wood to maintain its natural characteristics while being protected from water damage

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00EQ89RYW |
| Best Sellers Rank | #5,868 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Household Stains |
| Brand Name | Seal-Once |
| Color | Clear |
| Compatible Material | Wood |
| Customer Reviews | 4.3 4.3 out of 5 stars (1,942) |
| Included Components | SEAL-ONCE MARINE - 1 Gallon Penetrating Wood Sealer, Waterproofer & Stain. Water |
| Item Dimensions | 9 x 9 x 7 inches |
| Item Form | Liquid |
| Item Highlight | Waterproofer & Stain, Water-Based, Ultra-low VOC formula, For high-moisture areas |
| Item Weight | 8.8 pounds |
| Manufacturer | New Image Coatings, LLC |
| Material Type | Polyurethane |
| Model | 7614 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | 7614 |
| Style Name | Outdoor |
| Surface Recommendation | Walls,Wood |
| UPC | 850336001024 |
| Unit Count | 128 Fluid Ounces |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** Seal-Once
- **Item Weight:** 8.8 pounds
- **Item dimensions L x W x H:** 9 x 9 x 7 inches
- **Material:** Polyurethane
- **Style:** Outdoor

## Images

![Marine Penetrating Wood Sealer and Waterproofer, Clear, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71meKazl2vL.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 Premium Wood Sealer - Waterproof Sealant - Wood Stain and Sealer in One - 1 Gallon & Clear
- Pro Grade, Paint Brushes, 5-Piece, Paint Brush Set: Flat & Angle Brushes for Latex and Oil Paints, Stains, Interior & Exterior Home Improvement
- Magimate Deck Brush for Applying Stain, 5-inch Paint Brush, Medium Size for Quick Decking, Fence, Walls and Furniture Paint Application, Handle Threaded for Extension Use, Multicolor

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**Shop now:** [https://www.desertcart.us/products/12191199-marine-penetrating-wood-sealer-and-waterproofer-clear-1-gallon](https://www.desertcart.us/products/12191199-marine-penetrating-wood-sealer-and-waterproofer-clear-1-gallon)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-09-23*