Sealer & Filler

Solvent-Based vs. Emulsion Gilsonite Sealers

· 1 min read · Sun Gilsonite Technical Team

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Solvent-Based vs. Emulsion Gilsonite Sealers – Export pallets of 25 kg gilsonite bags with top caps
Feature Solvent-based Emulsion
Penetration Deep Moderate
Drying Fast Slower
VOC Higher Low
Colour Deep black Black
Clean-up Solvent Water (before cure)

Choose solvent-based where fast traffic return and penetration matter and regulations allow. Choose emulsions for lower VOC.

How to decide

Consider four questions:

  1. Regulations – are solvent-based products allowed in your region?
  2. Traffic – how quickly must the surface reopen?
  3. Surface condition – heavily oxidized surfaces benefit from deeper penetration.
  4. Weather – emulsions need warm, dry conditions to cure.

Practical guidance

Situation Recommended type
Busy car park, quick reopening Solvent-based gilsonite
Residential driveway, low VOC Emulsion
Airport apron Specified per aviation guidance
Cool, humid climate Solvent-based (better cure)
Export pallets of 25 kg gilsonite bags with top caps – sealer & filler application

Application differences

Solvent sealers are thinner and soak in; emulsions form a thicker film and often contain sand for texture.

See sealer and filler grade gilsonite and pavement sealer guide.

Recommended product

Data sheet

Sealer & Filler Grade Gilsonite

Data sheet – Sealer & Filler Grade Gilsonite
PropertyTypical valueTest method
AppearanceBlack powderVisual
Softening point (R&B)150 – 180 °CASTM D36
Ash content, max5 %ASTM D3174
Moisture, max1 %ASTM D95
Solubility in toluene, min98 %ASTM D2042
Particle size≤ 200 meshSieve
Typical dosageSealer: 15 – 35 %
Packing25 kg bags palletized.

Typical values. The final specification is confirmed in the COA of each shipment.

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