Waterproof Sealant for Concrete Cracks and Roof Leak Repair with Brush
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Free shipping · Order today, arrives in 6–8 business days
Ships in 2–3 business days from our North American warehouse · tracked delivery 4–5 business days
Clear Waterproof Sealant Paste with Brush — Professional-Grade Leak Repair
A waterproof sealant that dries completely transparent, this water-resistant paste seals cracks and stops leaks on concrete, wood, brick, tile, metal and PVC surfaces. The viscous gel formula applies smoothly with the included natural-bristle brush, creating an invisible waterproof barrier that works on any building material. Perfect for roof leak repair, foundation sealing, and indoor water damage prevention—ideal for homeowners and DIY enthusiasts tackling urgent repairs.

Trusted by homeowners and contractors for reliable, lasting waterproofing on concrete, wood and masonry.
Selling fast in all sizes. Ordered today, dispatched within 24–48 hours.
Why You'll Love This Waterproof Sealant
- Invisible finish: Dries completely clear, leaving no visible residue on tiles, concrete, wood or metal surfaces.
- Smooth gel texture: The viscous paste spreads easily with the wooden-handled brush, seeping deep into cracks for complete coverage.
- Versatile application: Works as a concrete sealant paint, roof leak repair sealant, waterproof wood sealer, and garage floor sealant—seals joints, cracks, and damaged areas on brick, PVC, and masonry.
- Professional brush included: Natural bristles with metal ferrule ensure precise, controlled application every time.
- 100% waterproof barrier: Forms a durable, water-resistant seal that stops leaks and prevents water damage on foundations, roofs, and outdoor structures.

Material & Care
- Water-based rubberized paste formula—acts as a liquid rubber foundation sealant and polyurethane sealant for concrete.
- Suitable for concrete, brick, tile, wood, metal, PVC and all building materials.
- Includes wooden-handled brush with natural bristles and metal ferrule.
- Dries clear and transparent with no residue.
- Allow to cure fully before exposing to water; refer to product instructions for specific drying times based on temperature and humidity.
Available in multiple pack sizes to suit your project scope. Check the product options to select the quantity that matches your repair needs. This self-leveling concrete sealant and waterproof cement sealer is formulated to work on all standard building surfaces; always test on a small area first if treating a new material.
Don't let leaks and water damage spread. Grab this waterproof sealant today and seal the problem permanently. Limited stock available—order now and receive your supplies within 48 hours. If you're not completely satisfied with the results, we offer a full money-back guarantee.
Not sure about your size? Use Find my size above — it takes a few seconds. Most styles fit true to U.S. sizing; oversized styles are marked in the name. For coats, size up if you like to layer.
Not sure which size to choose? Use the Fit Finder on any product page — it recommends your size in a few seconds. Measurements below are body measurements.
Women — clothing
| Size | US | Bust (in) | Waist (in) | Hips (in) | EU |
|---|---|---|---|---|---|
| XS | 0–2 | 31–32.5 | 24–25.5 | 34–35.5 | 32–34 |
| S | 4–6 | 33–34.5 | 26–27.5 | 36–37.5 | 36 |
| M | 8–10 | 35–36.5 | 28–29.5 | 38–39.5 | 38 |
| L | 12–14 | 37.5–39.5 | 30.5–32.5 | 40.5–42.5 | 40 |
| XL | 16 | 40.5–42.5 | 33.5–35.5 | 43.5–45.5 | 42 |
| XXL | 18 | 43.5–45.5 | 36.5–38.5 | 46.5–48.5 | 44 |
| 3XL | 20 | 46.5–48.5 | 39.5–41.5 | 49.5–51.5 | 46 |
Men — clothing
| Size | Chest (in) | Waist (in) | Neck (in) | EU |
|---|---|---|---|---|
| S | 35–37 | 29–31 | 14–14.5 | 46 |
| M | 38–40 | 32–34 | 15–15.5 | 48–50 |
| L | 41–43 | 35–37 | 16–16.5 | 52 |
| XL | 44–46 | 38–40 | 17–17.5 | 54 |
| XXL | 47–49 | 41–43 | 18–18.5 | 56 |
| 3XL | 50–52 | 44–46 | 19–19.5 | 58 |
Shoes
| Women US | EU | Foot (in) | Men US | EU | Foot (in) | |
|---|---|---|---|---|---|---|
| 5 | 35–36 | 8.6 | 7 | 40 | 9.6 | |
| 6 | 36–37 | 8.9 | 8 | 41 | 9.9 | |
| 7 | 37–38 | 9.3 | 9 | 42 | 10.3 | |
| 8 | 38–39 | 9.6 | 10 | 43 | 10.6 | |
| 9 | 39–40 | 9.9 | 11 | 44 | 10.9 | |
| 10 | 40–41 | 10.3 | 12 | 45 | 11.3 | |
| 11 | 41–42 | 10.6 | 13 | 46 | 11.6 |
Between sizes? For coats and jackets we recommend sizing up if you like to layer a sweater underneath. For personal fit advice, email contact@delmoe.com.
Free tracked shipping on every U.S. order. Processing 2–3 business days + delivery 4–5 business days (about 6–8 business days in total). Ships from our North American warehouse.
90 days to decide. Return unworn items with tags within 90 days of delivery for a full refund. Return shipping is paid by the customer — if an item is defective or we sent the wrong one, we email you a free prepaid label. Start a return at contact@delmoe.com.
Pay with Visa, Mastercard, American Express, Apple Pay or Google Pay. Our checkout is SSL-encrypted and hosted by Shopify (PCI DSS Level 1) — card details are never stored by DELMOE.
Please see the description for material details. To keep knits and wool-blends beautiful: hand wash cold or use a gentle wool cycle, lay flat to dry, and fold rather than hang. Coats: spot clean or dry clean.
The DELMOE promise
- Designed in Montana. Every piece is chosen for real cold-weather wear.
- Wear it for 90 days. Not right? Return it within 90 days of delivery.
- Defective or wrong item? We send you a free prepaid return label.
- Pay securely with Visa, Mastercard, Amex, Apple Pay or Google Pay — card details are never stored by us.
