Concrete Crack Sealant Deep-Penetrating Waterproof & Flexible
High Quality
Free US Shipping
Hassle Free Returns
Say Goodbye to Cracks with Lasting Concrete Protection
Permanently seal cracks in concrete and masonry — waterproof, weather-resistant, and durable across all climates.
Why is DeepSeal the Perfect Solution for Concrete Cracks?
✔ Deep waterproofing to prevent damage.: DeepSeal penetrates cracks thoroughly to protect against water absorption, dirt buildup, and frost damage, ensuring surfaces remain intact despite exposure to all weather conditions.
✔ Exceptional durability in extreme conditions.: Formulated to resist temperatures from -40°F to 176°F, UV rays, and variable weather, DeepSeal provides long-lasting protection and performance for every season and climate.
✔ Strong adhesion with lasting flexibility.: Maintains elasticity and adhesive strength over years, preventing crack recurrence and reducing the need for frequent repairs.
Specifications
Available Colors: White, Gray, Black
Available Quantities: 7.05 oz (0.44 lb), 17.64 oz (1.10 lb)
Operating Temperature Range: -40°F to 176°F
Application Areas: Concrete and masonry cracks, for indoor and outdoor use
Frequently asked questions
Quick answers about ordering from Couje. More detail on our full FAQ page.
How much does shipping cost, and how long does it take?
Shipping is free on every order — no minimum. Orders are typically delivered within 4–12 business days (processing included), and every order includes tracking. Full details are in our Shipping Policy.
What is your return policy?
You can return items within 30 days of delivery. Once your return is received and inspected, we process your refund to the original payment method. See our Return & Refund Policy for the full process.
How do I track my order?
As soon as your order ships, we email you a tracking number. You can follow your delivery at any time on our Track Your Order page.
How can I reach customer service?
Email us at support@couje.com or use our contact form. Our team is available Monday – Friday: 09:00 AM – 05:00 PM EST and replies within 24 hours. Saturday – Sunday: closed.