Description
Key Benefits
- VinGran S80 delivers better scorch safety, improving control of premature vulcanisation.
- It produces even hardness, with uniform crosslink density throughout the rubber part.
- It delivers much improved tensile strength, for better mechanical performance.
- It improves compression set, giving better return-to-shape after compression — critical for seals, gaskets, and engine mountings.
- It delivers better heat ageing properties, for longer service life under heat stress.
- It improves tear resistance, for better mechanical durability.
Technical Features
- Product Type: Pre-dispersed rubber curative (sulphur)
- Sulphur Loading: 80%
- Binder: Suitable polymeric binder medium
- Form: Granular pellets
- Function: Sulphur cross-linking agent (curative) for rubber vulcanisation
- Part of: VinGran range — pre-dispersed curatives, accelerators, activators, blowing agents
- Packaging: 15 kg cartons
- Storage: Normal, dry conditions
- Country of origin: India
- Certification: ISO 9001:2015 (Vin Group)
Industries Served
VinGran S80 is used across rubber compounding for:
- Automotive Rubber Components — where property consistency is non-negotiable
- Industrial Rubber Goods — premium and demanding applications
- Technical Rubber Mouldings — where cure density consistency directly affects part performance
- Rubber Extrusion — particularly where rejection rates are a cost concern
- Premium Rubber Compounding — manufacturers competing on quality, not just cost
FAQ
What is VinGran S80?
VinGran S80 is a pre-dispersed sulphur in a suitable polymeric binder medium, available as granular pellets with 80% sulphur loading. It is used as a curative (cross-linking agent) in rubber vulcanisation, particularly for applications where cure density consistency is critical.
What is the difference between VinGran S80 and raw sulphur powder?
Raw sulphur powder must be dispersed into the rubber compound during mixing — and dispersion quality varies with equipment, conditions, and operator skill. VinGran S80 is already pre-dispersed in a polymer binder at 80% sulphur loading, so it incorporates uniformly into the compound every time. This eliminates the cure-density variation that raw sulphur typically causes.
Why does cure density consistency matter?
Variation in cure density is the major cause of variation in vulcanised rubber properties. Inconsistent cure density leads to uneven hardness, variable tensile strength, inconsistent compression set, and poor heat-ageing performance. For demanding applications, this variation creates rejection rates as high as 8% in extrusion.
What is the sulphur loading in VinGran S80?
80% sulphur in a polymeric binder. This is the active sulphur content available for vulcanisation when VinGran S80 is added to the rubber compound.
What rubber properties does VinGran S80 improve?
- Better scorch safety
- Even hardness
- Much improved tensile strength
- Improved compression set
- Better heat ageing properties
- Improved tear resistance
Why use pre-dispersed additives in rubber compounding?
Globally, the use of pre-dispersed additives is the preferred solution for consistency in demanding applications. Pre-dispersion removes the variability that comes from mixing raw chemicals into rubber compounds — delivering more consistent properties, lower rejection rates, and better-performing rubber products.
How is VinGran S80 supplied?
VinGran S80 is supplied as granular pellets in 15 kg cartons. Store in normal, dry conditions.
How much rejection can VinGran S80 help reduce?
The brochure references extrusion rejection rates as high as 8% caused by property variation. By delivering consistent cure density, VinGran S80 directly addresses the root cause of this rejection rate.
Is VinGran S80 manufactured in India?
Yes. VinGran S80 has been manufactured in India by Vin Group, a speciality additive manufacturer for the plastic, rubber, and FRP industries since 1997.
How do I get a free sample of VinGran S80?
Call +91 98 99 77 8888 or email marketing@vin.co.in to request a free trial sample.
What is the recommended dosage of VinGran S80?
The dosage is typically calculated to deliver the sulphur level required by your rubber formulation.
Can I get other grades of pre-dispersed sulphur or other rubber curatives in the VinGran range?
Yes. VinGran is a range of pre-dispersed rubber chemicals. Contact Vin Group for the complete portfolio and to discuss specific grade requirements.
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