Waterproofing
Gilsonite Waterproofing FAQ
Why add gilsonite to waterproofing? To increase hardness, heat resistance and water resistance. Is it flexible? Alone it…
Hardening additive for bituminous pipe enamels, roof coatings and waterproofing compounds.
Key benefits
- Raises softening point of compounds
- Reduces sag and cold flow
- Improves adhesion to steel and concrete
- Very low water absorption
Product overview
This grade is designed for bituminous coatings and waterproofing. Added to bitumen it raises softening point and hardness, reduces flow and improves adhesion and water resistance in pipe enamels, primers, tapes, roofing compounds and membranes.
Applications
- Pipe enamels, primers and tapes
- Roof coatings and membranes
- Foundation waterproofing
- Bridge deck mastic
Technical data
Data sheet
Coating & Waterproofing Grade Gilsonite
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Black powder | Visual |
| Softening point (R&B) | 150 – 200 °C | ASTM D36 |
| Ash content, max | 5 % | ASTM D3174 |
| Moisture, max | 1 % | ASTM D95 |
| Solubility in TCE, min | 97 % | ASTM D2042 |
| Particle size | ≤ 200 mesh | Sieve |
| Typical dosage | 5 – 25 % of compound | |
| Packing | 25 kg bags palletized; 1 MT jumbo bags. | |
Typical values. The final specification is confirmed in the COA of each shipment.
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