---
product_id: 13986664
title: "Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz"
brand: "ames"
price: "€ 866.07"
currency: EUR
in_stock: true
reviews_count: 13
category: "Ames"
url: https://www.desertcart.de/products/13986664-ames-research-laboratories-bmx5rg-blue-max-waterproofer-regular-use-in
store_origin: DE
region: Germany
---

# Eco-friendly & VOC compliant 1200% elastomeric elongation 20-year crack-resistant warranty Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz

**Brand:** ames
**Price:** € 866.07
**Availability:** ✅ In Stock

## Summary

> 💧 Seal your space with the ultimate stretch of protection!

## Quick Answers

- **What is this?** Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz by ames
- **How much does it cost?** € 866.07 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/13986664-ames-research-laboratories-bmx5rg-blue-max-waterproofer-regular-use-in)

## Best For

- ames enthusiasts

## Why This Product

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

## Key Features

- • **Eco-Conscious Choice:** Non-toxic, VOC compliant in all 50 states, and proudly made in the USA by a woman-owned, veteran-founded company.
- • **Unmatched Flexibility:** Expands & contracts 1200% to prevent cracks and peeling, ensuring long-lasting waterproof protection.
- • **Effortless Application:** Brush, roll, or spray on vertical and horizontal surfaces with a smooth, semi-gloss finish that stands out.
- • **Professional-Grade Durability:** Backed by a 20-year limited warranty, built to withstand harsh interior and exterior conditions.
- • **Versatile Surface Compatibility:** Seals concrete, wood, metal, and more—perfect for basements, roofs, decks, and foundations.

## Overview

Ames Blue Max is a premium 5-gallon elastomeric liquid rubber waterproofer offering 1200% elongation for superior crack resistance. Ideal for interior and exterior use on concrete, wood, and metal surfaces, it provides a durable, eco-friendly waterproof seal backed by a 20-year warranty. Trusted by professionals for foundations, roofs, decks, and more.

## Description

Blue Max Liquid Rubber Waterproofer is a water-based, strong and highly adhesive elastomeric coating & sealant with 1200% elongation that moves with the surface to resist cracking & peeling. Blue Max® is ideal for waterproofing above & below grade foundations, basements, roofs, floors & more.

Review: Give it a lot of time to cure. - It is slimy. I used it to waterproof a concrete bird bath. I used two coats. I recommend letting it cure at least a week in warm weather before filling it with water. If you wait longer than what you think it should take to cure, it works great! I have a birdbath heater/fountain and the birdbath is completely sealed and waterproof.
Review: Pet stained subfloor - I actually used this to seal my subfloors after attempting to neutralize pet stains. The stains were the worst! This product is amazing, easy to use, very easy to clean up. Would use 10 out of 10 for any vertical waterproofing.

## Features

- Ames Blue Max is a strong and highly adhesive elastomeric liquid rubber waterproofer. This durable blue coating has 1200% elongation that resists cracking and peeling. Blue Max is ideal for waterproofing above and below-grade basements and foundations, insulated concrete forms, and underlayment.
- Blue Max Liquid Rubber Waterproofer can be used as a primer on most types of roofs including metal roofs and RV roofs. Use on concrete, wood, metal & more. Brush, roll or spray on vertical or horizontal surfaces.
- Blue Max is an elastomeric membrane that expands & contracts 1200% with surface to resist cracking & peeling. Blue Max is a special blend of adhesive, high strength elastomeric liquid rubber for waterproofing concrete, wood, metal and more.
- Blue Max is non-toxic, eco-friendly, VOC compliant in all 50 states and made in the USA. Ames is Woman Owned and Veteran Founded.
- 5 Gallon - Blue Ames Blue Max Liquid Rubber Waterproofer is packaged in a 5 gallon pail.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0021HCL34 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #27,813 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #89 in Hardware Sealers |
| Brand | AMES |
| Color | Blue |
| Coverage | Coverage sq ft. |
| Customer Reviews | 4.6 4.6 out of 5 stars (552) |
| Date First Available | March 26, 2009 |
| Finish | Semi-Gloss |
| Global Trade Identification Number | 00856955000981 |
| Included Components | Ames 5 Gallon Blue Max |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Weight | 44 pounds |
| Item dimensions L x W x H | 12 x 12 x 13.75 inches |
| Item model number | BMX5RG |
| Manufacturer | Ames Research Laboratories Inc. |
| Material | Rubber |
| Number of Items | 1 |
| Part Number | BMX5RG |
| Product Dimensions | 12 x 12 x 13.75 inches |
| Size | 5 Gallon |
| Special Features | Crack Resistant |
| Style | Liquid Rubber |
| Surface Recommendation | Interior and exterior below grade basements and foundations, floors, decks, and roofs |
| UPC | 856955000981 |
| Unit Count | 640.0 Fluid Ounces |
| Usage | Interior/Exterior |
| Warranty Description | 20 Year Limited Warranty |
| Water Resistance Level | Waterproof |

## Product Details

- **Brand:** AMES
- **Item Weight:** 44 Pounds
- **Item dimensions L x W x H:** 12 x 12 x 13.75 inches
- **Material:** Rubber
- **Style:** Liquid Rubber

## Images

![Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz - Image 1](https://m.media-amazon.com/images/I/71sRa5dc3TL.jpg)
![Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz - Image 2](https://m.media-amazon.com/images/I/715tAGGYNmL.jpg)
![Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz - Image 3](https://m.media-amazon.com/images/I/71HUSTtITeL.jpg)
![Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz - Image 4](https://m.media-amazon.com/images/I/81Rt8x-FdhL.jpg)
![Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz - Image 5](https://m.media-amazon.com/images/I/81OEr04c9FL.jpg)

## Available Options

This product comes in different **Color, Size, Number Of Items** options.

## Questions & Answers

**Q: Can it be used on a garage floor.**
A: Yes I suppose you could, although it stays tacky for quite a while.  We used it on our basement walls and about 2 inches of the floor where is met the walls.  We used about 6 coats.  It went on very easy.  I would use it on a floor if I were coating it with some other layer- seeing as it is tacky and even when dry it is still rubbery in a way that would not be easy to sweep.

**Q: Can you paint over this?  How about applying stucco finish over it?**
A: i,m not sure if you can paint over it,i didn,t have good luck with this product,applied over concrete wouldn,t stick,water leaked right through.

**Q: Can you use this for a liner of a stock tank that I turned into a swimming pool?  And does it feel like rubber on your skin?**
A: It's noy recommended for use in pools but we have had customers do it.  It does end up with somewhat of a rubbery feel.  If you do use it, keep in mind everything above the waterline must be top coated because it is UV sensitive.

**Q: does this product work well on brick? -- I have seepage in a basement that has brick wall (seepage is not to bad)**
A: Yes, it will adhere to brick just fine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Give it a lot of time to cure.
*by H***Y on December 27, 2025*

It is slimy. I used it to waterproof a concrete bird bath. I used two coats. I recommend letting it cure at least a week in warm weather before filling it with water. If you wait longer than what you think it should take to cure, it works great! I have a birdbath heater/fountain and the birdbath is completely sealed and waterproof.

### ⭐⭐⭐⭐⭐ Pet stained subfloor
*by A***T on February 9, 2026*

I actually used this to seal my subfloors after attempting to neutralize pet stains. The stains were the worst! This product is amazing, easy to use, very easy to clean up. Would use 10 out of 10 for any vertical waterproofing.

### ⭐⭐⭐⭐⭐ Best Waterproofing Paint.
*by M***Z on December 17, 2025*

Great Item, definitely worth the money. I need to order more.

## Frequently Bought Together

- Ames Research Laboratories BMX5RG Blue MAX Waterproofer, Regular Use in Interior & Below-Grade Exterior Concrete Sealer and More. Liquid Rubber, 5 Gallon (Pack of 1), 640 Fl Oz
- Ames Blue Max Trowel Grade Sealant & Filler, 1 Gallon

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-08*