---
product_id: 310962279
title: "Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon"
brand: "defy"
price: "€ 212.49"
currency: EUR
in_stock: true
reviews_count: 5
category: "Defy"
url: https://www.desertcart.fr/products/310962279-crystal-clear-composite-deck-waterproofing-sealer-1-gallon
store_origin: FR
region: France
---

# Long-lasting resin durability extends deck life by 1-2 seasons Water-based formula for eco-friendly, low-VOC protection Zinc nano-particle UV defense with 30 trillion particles/sq inch Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon

**Brand:** defy
**Price:** € 212.49
**Availability:** ✅ In Stock

## Summary

> 🛡️ Defy time and weather—keep your deck flawless, effortlessly.

## Quick Answers

- **What is this?** Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon by defy
- **How much does it cost?** € 212.49 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/310962279-crystal-clear-composite-deck-waterproofing-sealer-1-gallon)

## Best For

- defy enthusiasts

## Why This Product

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

## Key Features

- • **Extended Deck Life:** Premium resins resist fading and darkening, lasting longer than competitors by up to two seasons.
- • **Nano-Guard UV Shield:** Zinc nano-particles reflect harmful UV rays to prevent premature graying and fading.
- • **Effortless Maintenance:** No stripping needed—just clean and apply a single maintenance coat to refresh protection.
- • **Eco-Conscious & Compliant:** VOC-compliant formula ensures safer application and environmental responsibility.
- • **Invisible Armor for Your Deck:** Clear, water-based sealer preserves natural composite look without altering color.

## Overview

DEFY Crystal Clear Composite Deck Waterproofing Sealer is a premium, water-based, VOC-compliant product fortified with over 30 trillion zinc nano-particles per square inch. It provides superior UV protection and water resistance to composite decks, extending their lifespan by up to two seasons while maintaining the natural look. Easy to maintain with no stripping required, it’s the go-to sealer for professionals and homeowners seeking durable, eco-friendly deck protection.

## Description

DEFY Composite Deck Sealer is an extremely durable clear finish that helps to prevent stains on composite decks and protect against the damaging effects of water and UV rays on composite wood surfaces. This VOC compliant, water-based product is fortified with zinc nano-particles. There are over 30 TRILLION of these zinc nano-particles per square inch that protect your composite wood from the elements.

Review: Fantastique
Review: Great product does what it claims however the coverage stated on the information provided is a tad generous so knock off 25% when calculating overall area for your composite deck the product it’s a must

## Features

- WATER-BASED, CLEAR COMPOSITE DECK SEALER – This water based, clear wood and deck sealer protects composite wood from the harmful effects of the sun, while adding little to no change to the natural look of your composite deck.
- FORTIFIED WITH ZINC NANO-PARTICLE TECHNOLOGY– It’s like sunscreen for your wood. Tiny zinc particles dispersed throughout the stain reflect damaging UV rays, preventing premature graying and color loss.
- EXTREMELY DURABLE, HIGH QUALITY RESINS – DEFY Composite Deck Sealer is made with the highest quality resins available that have better resistance to fading and darkening. The result is a quality sealer that typically lasts a season or two longer than competitive products.
- QUALITY THAT LASTS – DEFY Extreme Composite Deck Sealer is a premium-grade, clear deck sealer that is built to last. Keep your weathered composite deck, or fence looking great for longer by using DEFY.
- EASY TO MAINTAIN – When it’s time to do a maintenance coat, there’s no need to strip the surface. Make sure the surface is clean, then apply a single maintenance coat of DEFY Composite Waterproofing Sealer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BW8JEU6 |
| Best Sellers Rank | #37,408 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #61 in Household Wood Stains #233 in Hardware Sealers |
| Item model number | TRTAZ11A |
| Manufacturer | DEFY |
| Product Dimensions | 19.05 x 8.13 x 31.75 cm; 3.99 kg |

## Product Details

- **Brand:** DEFY
- **Item dimensions L x W x H:** 19.1 x 8.1 x 31.8 centimeters
- **Item weight:** 3.99 kg
- **Material:** Wood,Zinc
- **Style:** Compact

## Images

![Crystal Clear Composite Deck Waterproofing Sealer, 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71s-FOj82fL.jpg)

## Questions & Answers

**Q: will this work on Trex decking?**
A: This works very well on Trex decking.

**Q: I have eon decking which can't have any petroleum based products.  what exactly is in this product and will it harm my eon decking?**
A: I don't know about your decking product, but we used this cleaner on our "TREX" deck, and it worked great.   We power washed the deck before applying the cleaner, and it dried looking practically brand new.

**Q: Is this product water based?**
A: I haven't put it down yet. I'm not sure if it's water based or not. I'm ordering a second gallon before I start as I won't have enough to finish. I will post what I find once I've had an opportunity to use it.

**Q: Will this work on all composite decking**
A: I only know that it worked on my 14-year old Trex decking.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***R on 18 July 2025*

Fantastique

### ⭐⭐⭐⭐⭐ Review
*by K***. on 17 August 2023*

Great product does what it claims however the coverage stated on the information provided is a tad generous so knock off 25% when calculating overall area for your composite deck the product it’s a must

### ⭐⭐⭐⭐⭐ Review
*by B***Y on 15 June 2020*

I did a fair amount of research and this DEFY stuff kept coming up as the best so I decide to try it. Lots of prep time so I wanted to put down the best. This is a 20 year old original and never sealed Gray Treks Deck. It is 12' x 30' or 360 sq. ft. The stated coverage per container of 300 sq. ft. was the minimum so I bought 2 thinking it was more than enough. I was a little concerned as I started because the deck was taking quite a bit but I had enough to do 2 coats. Pictures are as follows: 1st was deck prepared, 2nd shows there was a distinction after applying & drying, 3rd was the pad & tray I used to apply, 4th is showing a little more than 1/2 of the 2nd. jug left after 1st coat and last picture is deck after 2nd coat. I have a small amount left. There were no overlap marks. I did have to do in-between the boards with a brush which was time consuming and tiring but necessary. The rest was done with the pad and was easy. The second coat obviously much easier and the coating went a much longer way. So my planks were fairly rough or porous which is why I did a second coat and I'm pleased with how it looks. I'm giving 5 stars for ease of application and looks and will return to review its durability at a later date. 4-10-21 It's Spring 2021. Our deck is on the North side of our house and after the fall & winter there is always significant mold & mildew especially nearest the house. This year there is none so this product works. I think prep is very important so I was diligent about this because I wanted to give it the best chance to work. It's said it will last a couple years so we'll see how it looks in Spring 2022. Right now I'm thrilled I don't have to power wash it.

## Frequently Bought Together

- Defy Composite Deck Waterproofing Sealer 1 Gallon
- DEFY Composite Deck Cleaner, 2 LB Container
- Superio Deck Scrub Brush with Long Handle 48 Inches, Heavy Duty Stiff Bristles Grout Scrubber with Scraper - Cleans Hot Tub, Swimming Pool, Granite Tiles, Bathroom, Patio, Kitchen, Wall and Deck

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-03*