Ames Blue Max White Liquid Rubber 5 Gallon - Durable Waterproofing

Our review of Ames Blue Max White Liquid Rubber finds it best suited for homeowners and contractors who need a flexible, long-lasting waterproof membrane for below-grade foundations, basements and other structures. The single biggest reason to buy is its high-elasticity formula that moves with surfaces to resist cracking and peeling, making it more forgiving than rigid coatings. The pail format and brush, roll or spray application also make it practical for larger DIY or professional jobs where coverage and adhesion are priorities.

Key Features

• High elasticity: The elastomeric membrane expands and contracts with the substrate to resist cracking and maintain a continuous seal over joints and minor movement.
• Strong adhesion: The adhesive formulation bonds to concrete, wood and metal to create a durable waterproof barrier on both vertical and horizontal surfaces.
• Versatile application: Can be brushed, rolled or sprayed, allowing use on foundations, basements, roofs and underlayment depending on job access and preference.
• Large coverage pack: The 5 gallon pail supplies enough material for moderate-to-large areas and is convenient for multi-coat applications with 24 hours between coats.
• VOC-compliant and non-toxic: The waterproofer is formulated to be eco-friendly and meets VOC requirements in all 50 states for safer use around occupied spaces.

Who It's For

This product is aimed at homeowners tackling basement waterproofing, contractors repairing insulated concrete foundations and roofers needing a flexible membrane that resists long-term weathering. It is also useful for those restoring or reinforcing wood and metal surfaces that require a high-adhesion waterproof coating.

It is less suitable for very small, one-off touchups where a pint-size product would be more economical, or for users who need an instant cure coating; Blue Max requires drying time between coats and works best when applied as directed across larger areas.

Pros & Cons

Pros

• Exceptional elasticity helps prevent cracking and peeling under movement.
• Adheres well to multiple substrates, including concrete, wood and metal.
• Easy to apply by brush, roller or spray, which speeds larger jobs.
• Non-toxic and VOC compliant, suitable for projects in regulated areas.

Cons

• Requires drying time and may take longer to fully cure between coats, which can extend project time.

Specifications

Product	Ames Blue Max White Liquid Rubber
Size	5 gallon pail
Elongation	900% (elastic membrane that expands and contracts)
Applications	Concrete, wood, metal, foundations, basements, roofs, floors
Application methods	Brush, roll or spray on vertical or horizontal surfaces
Dry time between coats	Allow 24 hours between coats
Compliance	Non-toxic and VOC compliant in all 50 states

Our Verdict

Ames Blue Max White Liquid Rubber is a reliable choice for anyone needing a flexible, adhesive waterproof membrane for foundations, basements or mixed substrates. Its combination of high elasticity, multi-surface adhesion and practical 5 gallon packaging makes it good value for larger repairs or new applications, provided the user can allow proper drying time between coats.

Frequently Asked Questions

Can Blue Max be used on both vertical and horizontal surfaces?
Yes. It is formulated to be brushed, rolled or sprayed on vertical and horizontal surfaces including foundations and floors.

How long should I wait between coats?
Allow about 24 hours between coats to ensure adequate drying and adhesion for subsequent layers.

Is this product environmentally friendly?
Blue Max is described as non-toxic and VOC compliant in all 50 states, which supports safer use around occupied spaces.