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💧 Seal your space with the ultimate stretch & shield!
Ames Blue Max is a premium, elastomeric liquid rubber waterproofer offering 1200% elongation to resist cracking and peeling. Ideal for interior and below-grade exterior concrete, wood, metal, and roofs, it provides a durable, waterproof membrane backed by a 20-year warranty. Eco-friendly and VOC compliant, this 5-gallon pail is a top-rated, versatile solution trusted by professionals and DIYers alike.








| ASIN | B0021HCL34 |
| Best Sellers Rank | #25,402 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #102 in Hardware Sealers |
| Brand | AMES |
| Brand Name | AMES |
| Color | Blue |
| Compatible Material | Metal, Wood |
| Customer Reviews | 4.6 out of 5 stars 561 Reviews |
| Global Trade Identification Number | 00856955000981 |
| Included Components | Ames 5 Gallon Blue Max |
| Item Dimensions | 12 x 12 x 13.75 inches |
| Item Form | Liquid |
| Item Type Name | Liquid Rubber |
| Item Weight | 44 Pounds |
| Item dimensions L x W x H | 12 x 12 x 13.75 inches |
| Manufacturer | Ames Research Laboratories Inc. |
| Material | Rubber |
| Material Type | Rubber |
| Model | BMX5RG |
| Number of Items | 1 |
| Part Number | BMX5RG |
| Style | Liquid Rubber |
| Style Name | Liquid Rubber |
| Surface Recommendation | Interior and exterior below grade basements and foundations, floors, decks, and roofs |
| UPC | 856955000981 |
| Unit Count | 640.0 Fluid Ounces |
| Warranty Description | 20 Year Limited Warranty |
| Water Resistance Level | Waterproof |
J**E
Building a house it worked
Good stuff can’t go wrong here easy to apply more than one way to do it
D**L
Needs top coat if used in the sun
Works but needs a top coat if used outdoors in the sun. Didnt know that when i bought it.
H**Y
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.
A**T
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 waterproofing need.
J**D
I've used Ames block and wall in my basement 4 years ago seems to work good with 4coats.
I used the White version Ames block and wall in my basement four years ago it seems to be holding up pretty decent. This Blue version I used on some wood behind the gutter it did not hold up very well.
G**Y
QUALITY UNMATCHED
You are not going to believe how I used this product. I build a whole water tank just with the product. No mortar used. Nice and thick but no pasty. Application easy I used ketchup bottles to spread. I used 2 of them on a cabin roof and painted over for water proofing. If you are DIY. You need this. This is my 8 bucket order.
M**Z
Best Waterproofing Paint.
Great Item, definitely worth the money. I need to order more.
B**Y
Satisfied customer
I was happily surprised with this product it did the job I needed. I am a satisfied customer.
B**N
Works great
Works great
B**X
Blue max
Très bon produit il s’applique très bien
J**J
Blue Max.
Very good products sealed like it should. We'll by again.
A**M
NO information on the product
Got another galon to experiment with brush. Stunning luck of i formation. No word states on; Is any solvent available / what kind of if any ( it's possible to thin it with water or anything else? ) I would like to use this paint with an air spray gun- does it need a special equipment / hardware to do so?) Where is MSDS information about this chemical? I was hoping to get all of it along with the product, but NOTHING was attached to it! Taking two stars because of that.
P**T
Don;t order if you are planning to return it
Found it was not what I needed tried to return it and got nowhere . It's an ecpensive item to buy if it sits in a corner!
Trustpilot
1 month ago
3 weeks ago