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Home » Performance Polymers » Latex » Encord SBR Latex » Encord - Styrene Butadiene Latex

Encord - Styrene Butadiene Latex

Encord-SBR latex is a random co-polymer of styrene and butadiene monomer dispersed in an aqueous medium.

Encord - Vinyl Pyridine Latex
Polymerization Structure of styrene and butadiene co-polymer

  1. Encord 201 ( Styrene: Butadiene:: 25:75 Cold Polymerized)
  2. Encord 202 ( Styrene: Butadiene :: 25:75 Cold Polymerized)
  3. Encord 204 (Styrene: Butadiene:: 50:50 Hot Polymerized)
  4. Encord 205 (Styrene: Butadiene:: 25:75 Hot Polymerized))

Applications
Encord - SBR is used for dipping of tyre cord fabric, V-belts and conveyor belts. It is compatible with vinyl pyridine latex for dipping of tyre cord fabric (Nylon,Polyetser and Rayon). It provides excellent adhesion to dipped and calendered tyre cord with the rubber compound.

Key Attributes
Sr.No. Property Specifications Standard
Encord -201 Encord-202 Encord -204 Encord-205
1 Appearance Off white Off white Off white Off white
2 Solid Content (%) 39-42 38-42 40-42 40-42 ASTM D 1417
3 pH 10-12 10-12 10-12 10-12 ASTM D 1417
4 Coagulum (%) 0.05 max. 0.05 max. 0.05 max. 0.05 max. ASTM D 1417
5 Brookefield Viscosity@ 25°C (1, 60, 500) cps 100 max 100 max 15-50 200 max ASTM D 1417
6 Surface Tension (dynes/cm) 50-75 58-65 48-58 48-58 ASTM D 1417
7 Mooney Viscosity ML (1+ 4) @100° C 70-130 140 max 50-90 50-90 ASTM D 1417
8 Mechanical Stability (gms/100cc) 0.3 max. 0.3 max. 0.3 max. 0.3 max. ASTM D 1417
9 Particle Size in (°A) 800-1000 800-1000 800-1000 800-1000 ASTM D 1417
10 Specific Gravity 0.96-1.00 0.96-1.00 0.96-1.00 0.96-1.00

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