Crazy Seal
Thousands of successful installations
Container Size: 1 Gallon
Color: White
What's Included
You have selected the one gallon size of Crazy Seal in white. Use the quantity field to adjust how many one gallon buckets you would like to order.
When properly applied, Crazy Seal™ provides a weatherproof monolithic silicone roof coating. Applying Crazy Seal™ to any weathered roof substrate will help ensure it is protected against degradation caused by harsh UV rays, severe weather, mold and mildew. It will not chalk or blister. The unique fiber-infused silicone makeup of Crazy Seal™ remains permanently flexible yet strong.
Coverage Rates: 100 SQ FT / Gallon on standard surface like rubber. 75 SQ FT / Gallon when applied directly to wood decking.
Net Contents: 1 US GAL / 3.8 L
Colors: Available in White, Gray, or Tan
In-stock & ready to ship from our USA facility
Split into 4 installments on $100–$1,000 orders
Free shipping on orders over $500
50 year warranty when registered
Questions about sizing or installation? Call (800) 963-0131 — we'll make sure you get exactly what your roof needs.
The Details That Matter
Why It Works
The final membrane. The central component that ties the entire system together and forms the finished seamless membrane.
UV, severe weather, mold & mildew. Protects any weathered roof substrate against the degradation that kills conventional roofs.
100 sq ft per gallon, per layer. Each layer cures to 20 mils — two layers is the recommended system for 40 mils of protection.
Watch the Crazy Seal overview
Straight From the Roof
Real reviews from customers who installed it themselves.
“THANK YOU for a great and reassuring experience! I have already referred this system to 3 family and friends. I'm looking forward to a very long, assured feeling of protection from water intrusion.”
David Vincent from Key Largo, FL
“We could not be more pleased with the Crazy Seal product. We are expecting to have many years of enjoyment from our sunroom now that we do not have to worry about leaks.”
Philip Posey from Tuscumbia, AL
“After viewing the DIY videos 4 times, I followed the instructions to the letter. The product went on easily.”
Douglas Evans from Overton, NV
“Great product, went on like advertised and ended up with a great looking roof that will last a long time.”
Dennis Van Dusseldorp
Do Your Homework
Why Crazy Seal?
This isn't box-store roof coating. Watch what makes the system different — and why it costs more.
21½ Reasons Why — Full Overview (10:24)
Why is Crazy Seal More Expensive?
Let's Get Crazy — Watch Our Crazy Tests (5:24)
How It Goes Down
No torches, no tear-off, no special tools. Three steps, guided by step-by-step videos.
1. Clean
Wash the roof with Crazy Clean so the membrane bonds to the roof — not the dirt.
2. Seal
Caulk and patch every seam, screw, and penetration with Crazy Caulk and Crazy Patch.
3. Coat
Roll on the seamless Crazy Seal membrane and never worry about that roof again.
Don't Get Caught Short
Complete Your System
What experienced installers add to the same order — so the job never stalls waiting on a second shipment.
Crazy Caulk
Seals seams, screws, and attachment points before the membrane goes down.
$25
Choose Options
Crazy Cloth
Reinforces seams and transitions — extra strength where roofs fail first.
From $20
Choose Options