Anionic Bitumen Emulsifying Agent
Description
Emulsifen GPRO is a plant-based anionic liquid emulsifier for bitumen emulsions. This powerful liquid emulsifier has a chemical composition and physical properties that make Emulsifen GPRO ideal for emulsions used in road surface binders and waterproofing applications.
Applications
Emulsifen GPRO performs well as an anionic emulsifying agent in SS-1 and SS-1h bitumen emulsions used in road surface binder and waterproofing applications, such as:
- Slurry Seal
- Tack Coats
- Cold mixes
- Fog spray
- Carck seal
- Dust Suppression
- Base Stabilization
- Soil Stabilization
- Waterproofing products
Advantages as an anionic bitumen emulsifying agent
- Eco-friendly solution, sustainable application, and biodegradable
- Does not contaminate the groundwater
- Excellent solubility in water
- Convenient and easy-use liquid emulsifier
- Emulsion tests well within specification compliance of ASTM D4957, D7226, D7496, D244 and ISSA methods
- Cost-effective formulations can be achieved for several types of emulsion applications.
- Product can be diluted without the need of being heated
- Slurry mix: emulsions provide good cohesion development in slurry systems
- Waterproofing emulsions: only natural liquid anionic emulsifier available in the market
Stability-Driven Anionic Emulsifier for Efficient Asphalt Emulsion Production
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Product Overview
Emulsifen GPRO is a liquid anionic bitumen emulsifier based on Polytrade’s modified natural resin technology, developed for asphalt emulsions requiring reliable colloidal stability, broad formulation tolerance and optimized cost-performance.
It is particularly suited for general road emulsion applications where process consistency, production stability and formulation efficiency are key priorities.
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Recommended Applications
Emulsifen GPRO is recommended for:
- General SS Emulsions
- Road Binders
- Bituminous Waterproofing
- Soil Stabilization
- Dust Suppression
- General Purpose Anionic Emulsions
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Key Performance Benefits
Reliable Colloidal Stability
Supports consistent particle distribution and stable emulsions.
Broad Process Tolerance
Performs well across varying bitumen sources and plant conditions.
Cost-Efficient Formulation
Delivers strong performance while optimizing formulation economics.
Easy Processing
Supplied as a liquid product — no heating required.
Natural Resin Technology
Derived from renewable raw materials and aligned with sustainable formulation trends.
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Typical Product Information
| Property | Typical Value |
| Appearance | Brown Liquid |
| Solids Content | 47% ± 2 |
| Active Resin Content | 38–39% |
| pH (2% Solution) | 11.0 – 12.0 |
| Packaging | 1000 kg IBC Tote |
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Recommended Starting Dosage
Dosage is based on total final emulsion weight.
| Application | Suggested Starting Dosage |
| SS60 / General Stable Emulsions | 1.20% |
| Road Binders | 1.00 – 1.20% |
| Waterproofing | 1.20 – 1.40% |
| Soil Stabilization | 1.00 – 1.30% |
| Dust Suppression | 1.00 – 1.20% |
Note: Final dosage should be optimized based on bitumen source, plant conditions and target emulsion properties.
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Soap Phase Preparation Procedure
Step 1 – Charge Water
Add required water volume to soap tank or lab reactor.
Step 2 – Add Emulsifen GPRO
Add calculated dosage under agitation.
Step 3 – Measure pH
Check pH of diluted soap solution.
Step 4 – Adjust pH if Necessary
Adjust with 50% NaOH solution until soap phase reaches:
Target pH: 12.5 – 13.5
Step 5 – Homogenize
Mix for 10–15 minutes until fully homogeneous.
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Why pH Control Is Critical
Although Emulsifen GPRO is supplied pre-saponified, dilution may reduce alkalinity and require correction.
Maintaining proper pH ensures:
- Full resin activation
- Better emulsification efficiency
- Improved emulsion stability
- Compensation for bitumen variability
- Reduced risk of premature breaking
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Performance with Variable Bitumen Sources
As refinery feedstock and crude sourcing continue to change, many producers are seeing increased variability in bitumen behavior.
Typical impacts include:
- Higher instability risk
- Increased sieve residue
- More process adjustments
- Less predictable emulsion performance
Emulsifen GPRO helps mitigate these issues through:
- Broad formulation tolerance
- Reliable colloidal stability
- Consistent production performance
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Application Positioning
Best Use Cases
| Application | Suitability |
| General Stable Emulsions | Excellent |
| Road Binders | Very Good |
| Waterproofing | Very Good |
| Soil Stabilization | Very Good |
| Hard Pen Bitumen | Good |
| Adhesion-Critical Applications | Moderate |
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Positioning Within Polytrade Portfolio
| Product | Primary Strength | Best For |
| Emulsifen G10000 | Adhesion | Slurry, Tack, Hard Bitumen |
| Emulsifen GPRO | Stability / Efficiency | General Road Emulsions |
| CarboAsphalt | Durability | Road Binders / Waterproofing |
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Technical Optimization Variables
Final performance may vary depending on:
- Bitumen source / refinery
- Penetration grade
- Bitumen acidity / compatibility
- Water quality
- Colloid mill efficiency
- Aggregate type
- Final application requirements
Laboratory validation is recommended for final optimization.
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Summary
Emulsifen GPRO is Polytrade’s stability-driven anionic emulsifier designed for:
General road emulsions
Stable production across variable bitumen sources
Cost-efficient formulations
Broad formulation flexibility
It delivers the stability and efficiency needed for modern asphalt emulsions while maintaining strong economic performance.
Ready to improve your emulsion performance?
Contact Polytrade for samples and technical support.