Sealer & Filler
Sealer and Filler FAQ
How long does gilsonite sealer last? Typically 2–4 years. Can I seal new asphalt? Wait until it has…
Gilsonite Sealers and Fillers
Gilsonite pavement sealers, crack fillers, joint sealants and mastics: selection and application.
Sealer & Filler
Slurry Seals and Micro-Surfacing with Gilsonite
Slurry seals and micro-surfacing combine emulsion, fine aggregate and filler. Can be incorporated into the asphalt before emulsification…
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When Is the Best Time for Crack Sealing?
Cracks are widest in cool weather, which makes spring and autumn ideal for crack sealing. Sealant placed in…
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Safety and Environmental Notes for Sealers
Many regions restrict VOC content and ban certain sealer types. Check local rules before selecting a product. Store…
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Estimating Sealer Coverage
Coverage depends on surface texture and age. Always follow the product data sheet. A 1,000 m² car park…
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Gilsonite in Fillers and Putties
Dark fillers and putties for wood, metal and masonry can use gilsonite as a binder. Gilsonite gives a…
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Formulating a Gilsonite Pavement Sealer
Drying time, film flexibility, water resistance and colour. Drying time, film flexibility, adhesion to aged asphalt, water resistance…
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Application Tips for Gilsonite Sealers
Barricade the area and keep vehicles off until the sealer has cured – often several hours, longer in…
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Bituminous Caulks and Mastics with Gilsonite
Caulks and mastics seal joints in roofs, gutters, foundations and tanks. Bitumen, gilsonite, fillers, fibres and solvent.
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Rejuvenating Aged Asphalt Surfaces
Asphalt oxidizes and becomes brittle and grey over time. Treat early, before cracking becomes extensive. Oxygen and UV…
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Gilsonite Sealers for Airport Pavements
Airports use surface treatments to extend asphalt life and resist fuel spills. Friction must be maintained; follow aviation…
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Gilsonite in Cold Patch and Pothole Repair Mixes
Cold patch mixes repair potholes quickly without hot asphalt. Improves cohesion and stiffness after curing, helping patches stay…
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Data sheet
Sealer & Filler Grade Gilsonite
| Property | Typical value | Test method |
|---|---|---|
| Appearance | Black powder | Visual |
| Softening point (R&B) | 150 – 180 °C | ASTM D36 |
| Ash content, max | 5 % | ASTM D3174 |
| Moisture, max | 1 % | ASTM D95 |
| Solubility in toluene, min | 98 % | ASTM D2042 |
| Particle size | ≤ 200 mesh | Sieve |
| Typical dosage | Sealer: 15 – 35 % | |
| Packing | 25 kg bags palletized. | |
Typical values. The final specification is confirmed in the COA of each shipment.