Table of Contents Liquid Rubber Waterproof Sealants
- Introduction
- What Is Liquid Rubber Waterproof Sealant?
- Why Choose Liquid Rubber for Waterproofing?
- 1. Heat Shield Paint for Roof – Advanced Thermal Insulation & Waterproof Coating
- 2. Flex Seal Liquid Rubber Sealant
- 3. Liquid Rubber Foundation Sealant
- 4. Gardner MAX 10 Elastomeric Roof Coating
- 5. Henry HE587 Dura-Brite White Elastomeric Roof Coating
- 6. SealBest White Elastomeric Roof Coating
- 7. Liquid Rubber Waterproof Sealant Coating
- 8. Rust-Oleum 380 Non-Fibered Roof Coating
- Summary Table
- References
Introduction Liquid Rubber Waterproof Sealants
Liquid rubber waterproof sealants are flexible, easy-to-apply coatings that protect surfaces from water penetration, UV exposure, and temperature extremes. Whether you’re sealing a roof, foundation, or deck, these products provide long-lasting protection in even the harshest conditions.
What Is Liquid Rubber Waterproof Sealant?
Liquid rubber is a highly elastic, durable coating made from synthetic rubber polymers. When applied to a surface, it forms a seamless, waterproof membrane that resists cracking, aging, and environmental degradation.
Why Choose Liquid Rubber for Waterproofing?
- Easy application: Roll, brush, or spray directly onto most substrates.
- Flexible & crack-resistant: Expands and contracts with temperature changes.
- UV and chemical resistant: Ideal for roofs, foundations, and outdoor applications.
- Environmentally friendly: Low-VOC and safe for both indoor and outdoor use.
1. Heat Shield Paint for Roof – Advanced Thermal Insulation & Waterproof Coating
This multi-functional sealant combines high-performance waterproofing with exceptional solar reflectance. Ideal for roofs exposed to extreme sunlight and temperature shifts, it helps reduce energy costs while preventing leaks.
Technical Specifications:
- Coverage: 2㎡/L (2 coats recommended)
- Drying Time: 2–4 hours (touch dry)
- Full Cure: 24 hours
- Solar Reflectance: >90% (ASTM C1549)
- Waterproof Rating: IPX8 (continuous immersion)
- Temperature Range: -30°C to +120°C
- Colors: Standard White (custom colors available)
- Packaging: 5L & 20L pails
Ideal for commercial buildings, industrial rooftops, and eco-conscious projects seeking both insulation and waterproofing.
2. Flex Seal Liquid Rubber Sealant
Flex Seal is one of the most recognizable names in the DIY market. This versatile sealant is easy to brush, roll, dip, or pour onto any surface and dries into a flexible rubber barrier.
- Great for gutters, RVs, foundations, and roofs
- Available in black, white, gray, and clear
- Highly UV resistant
3. Liquid Rubber Foundation Sealant
Specifically formulated for below-grade waterproofing, this product is ideal for protecting foundations, retaining walls, and basements. It adheres well to concrete and masonry.
- VOC-free and safe for indoor use
- Creates a thick, seamless membrane
- Can be applied with a roller or brush
4. Gardner MAX 10 Elastomeric Roof Coating
Gardner’s elastomeric coating is a top choice for asphalt, metal, and concrete roofs. It reflects sunlight and expands/contracts with roof movement.
- Flexible rubber coating with 10-year durability
- Excellent adhesion and mildew resistance
- Energy Star® rated
5. Henry HE587 Dura-Brite White Elastomeric Roof Coating
This product stands out for its reflectivity and energy-saving performance. It reduces interior temperatures and helps extend the life of roofing materials.
- Reflects over 90% of solar radiation
- Can reduce roof surface temperature by up to 40°F
- Ideal for flat and low-slope roofs
6. SealBest White Elastomeric Roof Coating
SealBest’s coating is great for DIY and commercial applications alike. It is mildew-resistant and offers excellent adhesion to a wide range of surfaces.
- Easy to apply and clean up with water
- Lasts up to 10 years with proper application
- Low-VOC formula
7. Liquid Rubber Waterproof Sealant Coating
This all-purpose rubber sealant is ideal for multiple surface types and offers both waterproofing and UV protection.
- Excellent for roofs, sheds, planters, and RVs
- Environmentally safe and low odor
- Can be applied in multiple coats
8. Rust-Oleum 380 Non-Fibered Roof Coating
Rust-Oleum’s trusted name delivers a durable coating for flat and low-slope roofs. It prevents water intrusion and protects surfaces from UV exposure.
- Ideal for asphalt, gravel, and metal roofs
- Easy brush-on application
- Cost-effective waterproofing
Summary Table
| Product | Key Features | Best For |
|---|---|---|
| Heat Shield Paint for Roof | IPX8 waterproof, >90% reflectance, -30°C to +120°C | Commercial rooftops, thermal insulation |
| Flex Seal Liquid | Brush/roll/dip, versatile, UV-resistant | DIY repairs, RVs, roofs, gutters |
| Liquid Rubber Foundation Sealant | Thick, VOC-free, below-grade use | Basements, concrete foundations |
| Gardner MAX 10 | Elastomeric, 10-year durability, Energy Star | Concrete and metal roofs |
| Henry HE587 | White reflective coating, temperature control | Flat and low-slope roofs |
| SealBest Elastomeric Coating | DIY-friendly, mildew-resistant, long-lasting | Home and commercial roofs |
| Liquid Rubber Sealant Coating | UV stable, multipurpose, eco-friendly | Planters, sheds, small structures |
| Rust-Oleum 380 | Non-fibered, UV protection, brush-on | Flat roofs, budget waterproofing |