Additives

Evaluating Gilsonite for a New Application

· 1 min read · Sun Gilsonite Technical Team

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Evaluating Gilsonite for a New Application – Jumbo bags of natural asphalt on pallets

Steps

  1. Define the property you want to improve
  2. Select grade (softening point, mesh, ash)
  3. Run small lab trials at several dosages
  4. Test performance and cost
  5. Scale up with a pilot batch

Building a test plan

Step What to define
Objective Property to improve and target value
Variables Gilsonite grade and dosage levels
Controls Current formulation without gilsonite
Tests Methods and acceptance criteria
Cost Price per unit of final product
1 MT jumbo bags of gilsonite – additives application

Common pitfalls

  • Testing only one dosage – always run a series.
  • Not dissolving gilsonite fully – undissolved particles distort results.
  • Changing several variables at once.

Scale-up

After lab success, run a pilot batch in production equipment, check processing and quality, then agree a written specification with the supplier for regular orders.

We can supply samples and technical data. See gilsonite powder.

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Data sheet

Gilsonite Powder

Data sheet – Gilsonite Powder
PropertyTypical valueTest method
AppearanceBlack to dark brown powderVisual
Particle size100 – 200 meshSieve
Softening point (R&B)150 – 220 °CASTM D36
Ash content, max5 %ASTM D3174
Moisture, max1 %ASTM D95
Volatile matter55 – 75 %ASTM D3175
Solubility in toluene, min99 %ASTM D2042
Specific gravity @ 25°C1.04 – 1.10ASTM D70
Typical dosageDrilling 2–8 lb/bbl · asphalt 4–12 % of binder · foundry 0.3–1.0 %
Packing25 kg multi-wall paper or PP bags, palletized and stretch-wrapped; 1 MT jumbo bags.

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

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