Introduction: Why Gilsonite for Waterproofing?
Gilsonite is high bonding strength, flexibility, and ability to integrate with various waterproofing systems, It has become an essential raw material for manufacturers of waterproofing membranes, sealants, and coatings.
Understanding Gilsonite’s Waterproofing Capabilities
Gilsonite acts as a water-repelling resin when combined with bitumen or synthetic binders. Its molecular structure forms an impermeable barrier against water, moisture, and vapor intrusion, making it ideal for underground, rooftop, and foundation waterproofing.
Typical Technical Specifications
- Softening Point: 160°C–220°C
- Ash Content: <5% (for construction-grade use)
- Solubility in Bitumen: >99%
- Moisture Content: <1%
- Specific Gravity: ~1.04
These properties support optimal melt blending and ensure a long-lasting waterproofing barrier.
Gilsonite Grades Suitable for Waterproofing
- Powder Form (100–200 mesh): For modified bitumen coatings and sealants
- Granules (30–40 mesh): Used in hot-melt blends and polymer-bitumen systems
- Crushed Flakes (1–5 mm): For bulk bitumen mix or direct drum blending
Grades are selected based on flexibility, temperature tolerance, and blending method.
Packaging Types for Waterproofing Use
- 25 kg laminated paper bags
- 500 kg and 1 MT jumbo bags with moisture protection
- Private-label packaging available for B2B distribution
- Bulk container shipments arranged for factory-based manufacturing
Main Applications in Waterproofing Systems
- SBS/APP Modified Bitumen Membranes
- Waterproofing Sealants and Mastics
- Foundation Damp-proof Coatings
- Basement and Sub-grade Waterproof Layers
- Bitumen Emulsion Waterproof Paints
- Hot-Applied Waterproofing Compounds
How to Use Gilsonite in Waterproofing Materials
- Blend into molten bitumen at 160–190°C.
- Stir continuously for uniform dispersion.
- Incorporate with SBS, APP, or EVA for polymer modification.
- Apply by spray, brush, roll, or casting.
Gilsonite improves the mechanical strength and waterproofing power of the base material.
Performance Benefits of Gilsonite-Based Waterproofing
- Exceptional Water Resistance
- Improved UV Stability
- Higher Softening Point
- Crack Resistance Under Thermal Stress
- Superior Bonding to Concrete, Brick, and Metal
- Cost-Effective vs. Pure Polymer Systems
Perfect for hot climates, cold zones, and high-moisture environments.
Compatibility with Bitumen, Polymers, and Additives
Gilsonite is highly compatible with:
- Bitumen 60/70, 80/100, and oxidized grades
- Polymers: SBS, APP, EVA
- Fillers: Talc, limestone, fly ash
- Emulsifiers: For cold-applied systems
- Plasticizers & Tackifiers
It acts as both a performance enhancer and a processing aid.
Forms of Waterproofing Products with Gilsonite
- Self-Adhesive Membranes
- Liquid Waterproofing Emulsions
- Bituminous Flashing Tapes
- Hot-Applied Membrane Compounds
- Cold-Applied Primer Systems
- Waterproof Mastic and Joint Sealants
Best Practices for Handling and Mixing
- Use dry, well-ventilated blending units
- Avoid moisture contamination
- Wear masks and gloves for large-scale production
- Pre-grind if using with powdered bitumen
Storage & Shelf Life
- Shelf Life: 2 years minimum
- Keep in original sealed packaging
- Store away from direct sunlight and humidity
- Stackable up to 2 tons high
Eco-Friendly and Sustainable Benefits
Gilsonite is a naturally derived, non-toxic alternative to synthetic modifiers. It contributes to green construction by reducing volatile organic compounds (VOCs) and supporting longer-lasting structures that require less maintenance.
Global Supply Capability and Logistic Support
Our logistics hubs in UAE (Jebel Ali), Turkey (Mersin), and Iran (Bandar Abbas) allow fast, bulk delivery to:
- Waterproofing factories
- Membrane producers
- Contractors and distributors
- Construction projects worldwide
We offer tailored shipping plans to reduce costs and lead times.
Why Waterproofing Contractors Choose Our Gilsonite
- Consistent product quality
- Expert blending and usage support
- Reliable stock and fast shipping
- Customized grades for different applications
- Years of experience in construction-grade Gilsonite
We don’t just sell Gilsonite—we build long-term waterproofing solutions with you.
Conclusion
Gilsonite offers a dependable, eco-conscious alternative to synthetic waterproofing additives. It combines high performance, affordability, and sustainability in one powerful material. Whether you’re a membrane producer, a waterproofing contractor, or a construction project manager, choosing the right Gilsonite supplier makes all the difference.
FAQs
- Can Gilsonite be used in cold-applied waterproofing?
Yes, with proper emulsification or blending, it works in both hot and cold applications. - Does Gilsonite affect the elasticity of membranes?
It increases hardness and durability. Combine with elastomers like SBS for flexibility. - Is Gilsonite waterproof on its own?
Not entirely. It enhances waterproofing when blended with bitumen or polymers. - What’s the typical usage ratio in waterproofing membranes?
Anywhere from 5% to 20%, depending on the formulation. - Does Gilsonite-based waterproofing resist UV and weathering?
Yes. It significantly improves UV stability and aging resistance of coatings.
