Description Of Goods: High Styrene Rubber HSR860/HS 68
|
Index Name |
Index Value |
Test Result |
Test Methods |
|
|
Chemical Performance
|
Volatiles |
≤5.0% |
3.85% |
ASTM D 5668 |
|
Organic Acid |
3.5~5.5% |
4.91% |
ASTM D 5774 |
|
|
Soap Content |
≤0.5% |
0.27% |
ASTM D 5774 |
|
|
Styrene Content |
66-70% |
68% |
ASTM D 5775 |
|
|
Total Ash |
≤0.4% |
0.15% |
ASTM D 5668 |
|
|
Physical Performance |
Tensile Strength |
≥10MPa |
19.01MPa |
ASTM D 412 |
|
Hardness(osh D) |
68~80 |
78 |
DIN53505 |
|
|
Hardness(osh A) |
≥96 |
99 |
DIN53505 |
|
|
Mooney Viscosity Ml(1+4)100℃ |
55-75 |
58 |
ASTM D1646 |
|
Appearance
Ivory-white granule.
Application
HS 68 is well suited to the fabrication of high-hardness and low-density finished goods.
Product Advantages
- Stable & Premium Physical Performance: Our HS 68 reaches tensile strength of 19.01 MPa and Shore A hardness 99, far exceeding the minimum standard. It delivers outstanding stiffness and mechanical strength for high-hardness rubber compounds, while keeping low product density.
- Controlled & Reliable Chemical Index: Styrene content stably controlled at 68% (within 66~70% range). Low volatiles (3.85%), low soap content (0.27%) and well-balanced organic acid ensure good compatibility with SBR, NR, BR and other base rubbers, less risk of blooming or surface defects.
- Excellent Processability: Mooney viscosity ML(1+4)100℃ at 58, falls in the medium viscosity range. Easy dispersion during mixing, smooth calendering and extrusion, friendly for your existing rubber production lines.
- Clean Ivory-white Granule Form: Ivory-white uniform granule, convenient for feeding and weighing. Ideal for light-color & bright-color finished products, easy pigmentation.
- Consistent Batch Quality & Standard Tested： All indicators tested in accordance with ASTM & DIN international standards. Each shipment comes with full TDS test report for quality traceability.
- Cost-effective Reinforcement Solution： Works as reinforcing modifier to boost hardness and rigidity without heavy carbon black loading. Help reduce formulation cost for high-hardness low-density rubber goods.
Packaging
20.00±0.2kgs/bag, kraft paper, bulk on the pallet (450kgs)
Storage
Store in cool, ventilated premises. Avoid exposure to flame, water and direct sunlight.
FAQ
1. What test standards do you adopt for this grade? A: Our full set test follows ASTM & DIN standards: ASTM D5668, ASTM D5774, ASTM D5775, ASTM D412, ASTM D1646 and DIN53505. TDS certificate will be supplied together with shipment.
2. Can HSR68 blend with other rubbers? A: Yes, it has great compatibility with SBR, natural rubber, polybutadiene rubber. It is commonly added as reinforcing agent to increase compound hardness and tensile strength.
3. What is the MOQ & delivery term?
MOQ negotiable, we support FOB / CIF terms, can arrange 20GP /40HQ container shipment.
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