Product Description Reviews Videos BLUE MAX® Original Blue 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® Original Blue is ideal for waterproofing above & below grade foundations, basements, roofs, floors & more. 27 Reviews 5 Best waterproofing Ive used Posted by Unknown on 30th May 2025 Its great to find a product that actually works! 5 . Posted by Rufhc on 29th Jan 2025 . 5 Blue Max Posted by Richard on 26th Oct 2024 Never thought to write a review. But I'm here to buy more. I made a plywood aquarium coated with blue max. 8' long x 54" wide x 4' deep. With a 1/2" acrylic window. Blue max works better than the description. I'm now going to make a more manageable size of 3'x3'x8'. 5 This stuff sticks to anything! Posted by Andre on 10th Apr 2024 This might aswell be a construction adhesive! Its bonds tightly to almost anything! 5 I use this on everything! Posted by Austin Bivens on 10th May 2023 I coated my basement floor and walls with this product and im getting ready to use it for my bathroom floor aswell. Its incredible stuff. VERY ADHESIVE. 5 Blue Max and Seam Tape Posted by Mark Duvall on 3rd Apr 2023 Use on glaze tile in the basement. Always had "dampness". -scraped the paint from the glazed tile blocks -re-point the mortar joints -cover the seams with blue max then seam tape -apply blue max in several coats After drying, walls are ready for primer and paint. 3 years without any leaks or dampness!! 5 Below Grade Waterproofing Posted by Hardtop Construction on 24th Mar 2023 I found out this product is sprayable from a gentleman at the International Builders Show last year and I’ve been using it ever since. Highly recommend. 5 product Posted by Unknown on 20th Apr 2022 excellent product, expensive shipping considering home depot ships for free which I found out after 4 Good product