---
product_id: 97309845
title: "Masonry Waterproof Clear 5g (DRYLOK - 20915)"
brand: "drylok"
price: "$934.87"
currency: USD
in_stock: true
reviews_count: 6
category: "Drylok"
url: https://www.desertcart.us/products/97309845-masonry-waterproof-clear-5g-drylok-20915
store_origin: US
region: United States of America
---

# Covers ~350 sq ft per 3 coats 5-gallon durable plastic container High gloss waterproof seal Masonry Waterproof Clear 5g (DRYLOK - 20915)

**Brand:** drylok
**Price:** $934.87
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal it, shine it, secure it – waterproof like a pro!

## Quick Answers

- **What is this?** Masonry Waterproof Clear 5g (DRYLOK - 20915) by drylok
- **How much does it cost?** $934.87 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/97309845-masonry-waterproof-clear-5g-drylok-20915)

## Best For

- drylok enthusiasts

## Why This Product

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

## Key Features

- • **Precision Coverage:** Optimized for smooth slab floors, delivering reliable protection over approximately 350 sq ft with three coats.
- • **Trusted Brand Legacy:** Drylok, a proven name since 2004, trusted by professionals for consistent masonry waterproofing performance.
- • **Ultimate Masonry Shield:** Protect your floors with a crystal-clear, high-gloss waterproof barrier that stands the test of time.
- • **Robust 5-Gallon Capacity:** Generous volume ensures you have enough product for large projects without constant reordering.
- • **Professional Grade Finish:** Achieve a sleek, high-gloss finish that elevates the look and durability of your basement or slab foundation.

## Overview

Drylok Masonry Waterproof Clear 5g is a high-gloss, clear waterproofing solution designed for masonry floors and slab foundations. Packaged in a sturdy 5-gallon plastic container, it covers roughly 350 sq ft over three coats, providing a durable, professional-grade seal. Ideal for basement floors, it combines proven performance with a sleek finish, making it a go-to choice for long-lasting masonry protection.

## Description

Drylok Masonry Waterproof Clear 5g (DRYLOK - 20915)

Review: Buy again - Buy again
Review: Coverage inaccurate and seller customer service is pathetic - Product appears to be ok but only time will tell. However, based on the coverage numbers provided (90-100sf) I bought 4 - 5 gallon buckets (20 gallons), based on the 1100 sf I needed to cover. At that I thought that would be short but could order more if need be. It took a little longer than I expected to get to this project and when I realized that 10 gallons was more than enough to cover all 1100 sf. I rolled it on rather heavy and used 3 coats since I had barely opened the second 5 gallon pale with the second coat. At that I have at least 1 maybe 2 gallons remaining, so roughly used no more than 9 gallons for 3 coats on 1100 sf of slab floor. I reached out to the seller "The Factory Depot" and they just stated I was outside my return window (which was only about 10 days at that). How convenient for them to oversell a product and use a 30 day return window as just an excuse to ignore an issue. Certainly not what I would call good customer service. Basically I'm stuck with $450 (2 - 5gallon buckets) which is of no use to me. Bottom line don't buy this from vendor "The Factory Depot" and if you do buy it take the coverage estimates with a grain of salt. I would say it may vary some with how porous your slab floor is but I expect most use cases in basements or just slab foundations they are relatively smooth the coverage is more like 350 sf. plus or minus a bit (I estimate averaged over 3 coats 366 sf). Would probably give it 4-5 stars but for the completely inaccurate coverage estimate and extremely poor customer service.

## Features

- Product Type: Tools
- Package Quantity: 1
- Package Dimentions: 31.191 cms (L) x 32.207 cms (W) x 40.411 cms (H)
- Country Of Origin: China

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00LMMQY3C |
| Batteries Required? | No |
| Best Sellers Rank | #586,034 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,408 in Interior & Exterior House Paint |
| Color | Clear |
| Customer Reviews | 4.7 4.7 out of 5 stars (41) |
| Date First Available | September 1, 2004 |
| Finish | High Gloss |
| Included Components | Masonry |
| Item Package Quantity | 1 |
| Item Weight | 46 pounds |
| Item model number | DRYLOK - 20915 |
| Manufacturer | Drylok |
| Material | Plastic |
| Part Number | 20915 |
| Power Source | Air Powered |
| Product Dimensions | 15 x 15 x 21 inches |
| Size | 640 Fl Oz (Pack of 1) |
| Style | Compact |
| Usage | Floor |
| Volume | 5 Liters |
| Warranty Description | Warranty |

## Images

![Masonry Waterproof Clear 5g (DRYLOK - 20915) - Image 1](https://m.media-amazon.com/images/I/61pe0TLXPTL.jpg)
![Masonry Waterproof Clear 5g (DRYLOK - 20915) - Image 2](https://m.media-amazon.com/images/I/71Yg5FTawxL.jpg)
![Masonry Waterproof Clear 5g (DRYLOK - 20915) - Image 3](https://m.media-amazon.com/images/I/61IZBUKiuPL.jpg)

## Questions & Answers

**Q: What’s the coverage per gallon**
A: I put to coats on an unfinished concrete floor, and used about half of a 5 gallon bucket. Seems like prett good stuff. Dries to a really tough, plastic like finish.  Bill

**Q: How do you apply this product?**
A: I used a 3/8" heavy nap roller.  The waterproofing is very thick so I doubt you could use a brush or sprayer.

**Q: Does this product have VOC's?**
A: While I'm not sure what the label says, I can tell you that the product has little to no odor.  I have only used it on exterior applications, but I love it.  I have tried numerous sealers and this is by far the most durable I have found.

**Q: Also if ther is no clear of this product, does it have colors?  A color card?**
A: its clear. the label states that

## Customer Reviews

### ⭐⭐⭐⭐⭐ Buy again
*by A***L on April 3, 2026*

Buy again

### ⭐⭐⭐ Coverage inaccurate and seller customer service is pathetic
*by T***D on February 21, 2024*

Product appears to be ok but only time will tell. However, based on the coverage numbers provided (90-100sf) I bought 4 - 5 gallon buckets (20 gallons), based on the 1100 sf I needed to cover. At that I thought that would be short but could order more if need be. It took a little longer than I expected to get to this project and when I realized that 10 gallons was more than enough to cover all 1100 sf. I rolled it on rather heavy and used 3 coats since I had barely opened the second 5 gallon pale with the second coat. At that I have at least 1 maybe 2 gallons remaining, so roughly used no more than 9 gallons for 3 coats on 1100 sf of slab floor. I reached out to the seller "The Factory Depot" and they just stated I was outside my return window (which was only about 10 days at that). How convenient for them to oversell a product and use a 30 day return window as just an excuse to ignore an issue. Certainly not what I would call good customer service. Basically I'm stuck with $450 (2 - 5gallon buckets) which is of no use to me. Bottom line don't buy this from vendor "The Factory Depot" and if you do buy it take the coverage estimates with a grain of salt. I would say it may vary some with how porous your slab floor is but I expect most use cases in basements or just slab foundations they are relatively smooth the coverage is more like 350 sf. plus or minus a bit (I estimate averaged over 3 coats 366 sf). Would probably give it 4-5 stars but for the completely inaccurate coverage estimate and extremely poor customer service.

### ⭐⭐⭐⭐ poorly packaged with slight leakage
*by J***D on November 22, 2021*

Product arrived as a 5 gal can contained within a thin cardboard box. There was slight leakage inside the box. Nothing major, however this indicates that the container was breached during shipment, not a big deal because I used it immediately. Aside from packaging issue, product appears to be working exactly as advertised.

## Frequently Bought Together

- Drylok Masonry Waterproof Clear 5g (DRYLOK - 20915)
- UGL 30507 10.5 Oz Drylok Masonry Crack Filler (pack of 2)
- DRYLOK 90237 Synthetic Bristle Masonry Brush, 4-Inch, 4 Inch, White

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-13*