The chemistry that makes rubber perform.

Fillers & Chemicals

The chemistry that decides how a compound processes, how it cures, and how long it survives the road it was built for.

Silanes, accelerators, antioxidants, insoluble sulphur, resins and mould release. Small percentages of the mix that govern most of its behaviour.

The chemistry that makes rubber perform.

A compound is shaped as much by its chemistry as its elastomer base. Polyplas supplies a focused range of high-performance fillers and process chemicals, silanes, accelerators, antidegradants, insoluble sulphur, resins and release systems, from principals including Shanxi and Rayton.

Polyplas supplies rubber chemicals for tyre manufacturing in India: silane coupling agents (Si-69, Si-75, X-50S and NXT-type mercaptosilanes), sulphenamide accelerators (TBBS, CBS, MOR), antioxidants and antiozonants (6PPD, TMQ), oil-coated insoluble sulphur, C5/C9 hydrocarbon resins, and water-based tyre mould release systems.

Silica will not bond to rubber on its own.

It reinforces better than carbon black and it lowers rolling resistance, but without a coupling agent it sits in the compound instead of joining it. The silane is what makes the fuel-efficient tread possible at all.

The problem

Silica reinforces better than carbon black and lowers rolling resistance. On its own it will not bond to rubber. The filler sits in the compound instead of joining it.

What we carry, and
what it is for.

6 product lines, each read the same way: what it is, where it goes, and the part Polyplas plays in getting it onto your line.

Silane Coupling Agents

Grades & standards: X-50S · Si-266 · Si-69 (TESPT) · Si-75 (TESPD) · NXT-type mercaptosilanes
Key applications: Silica-filled green-tyre tread compounds · rubber-to-filler bonding

Silica does not bond to rubber on its own. Silanes are the molecular bridge, without them, the green-tyre formulations behind low rolling resistance simply do not work.

Polyplas supplies the classic bifunctional grades and advanced mercaptosilanes with better scorch safety and processing behaviour. This is the highest-value chemistry in the portfolio, and the fastest-growing.

Why Polyplas

The chemistry is the highest-value decision in a compound and the smallest margin for error. Polyplas supplies each grade from certified producers, with the technical support to place it correctly, from silane loading to cure system, warehoused for just-in-time release.

Rubber Accelerators

Grades & standards: TBBS (NS) · CBS (CZ) · MOR, sulphenamide and thiazole types
Key applications: Vulcanisation control in every tyre and rubber compound

Accelerator choice decides cure rate, scorch safety and crosslink density, and with them, the mechanical character of the finished tyre. Polyplas supplies the primary sulphenamides used across the Indian industry, from internationally certified chemical producers.

Why Polyplas

Antioxidants & Antiozonants

Grades & standards: 6PPD (IPPD) · TDQ (TMQ)
Key applications: Sidewall and tread protection against ozone, oxygen, heat ageing

Unprotected rubber cracks, hardens and fails. Antidegradants are non-negotiable in every compound, most of all in the sidewall, where the surface faces the weather for the life of the tyre.

Why Polyplas

Insoluble Sulphur

Grades & standards: IS-60 HS · IS-65 HS · IS-7020, oil-coated grades
Key applications: Skim and body-ply compounds in radials · steel cord adhesion

Ordinary sulphur blooms to the compound surface and destroys cord adhesion. Insoluble sulphur stays put at processing temperature, which is why every radial skim compound depends on it. Polyplas supplies oil-coated grades from internationally recognised producers.

Why Polyplas

Hydrocarbon Resins

Grades & standards: C5 aliphatic · C9 aromatic · C5/C9 copolymer
Key applications: Building tack, compound cohesion, ply adhesion

Uncured plies must hold together before the press does its work. Tackifying resins provide that building tack. Polyplas supplies aliphatic, aromatic and copolymer grades, including from Rayton of China, matched to each customer's compound and process.

Why Polyplas

Tyre Mould Release Systems

Grades & standards: Water-based systems for mould and bladder coating
Key applications: Curing press operations, clean demoulding, less downtime

Clean release is quiet money: fewer defects, less mould fouling, better surface finish. Polyplas supplies ready-to-use water-based systems from specialist producers.

Why Polyplas

Coupling to mould release: 6chemistriesCoupling to mould release
Across eight countries: 17principalsAcross eight countries
Sustained growth in trade: 30per cent a yearSustained growth in trade

Sourced from
Shanxi and Rayton.

China · Rubber chemicals, C5 and speciality resins

Accelerators, antioxidants and resins arrive against certified analysis and are held in Indian warehouses. A cure system is not something a plant should be waiting on a customs queue for.

See every principal