Why It Matters
Rubber compounding needs sulfur-functional silanes, processing oils and vulcanization raw materials
Solution Approach
Rubber compounding needs sulfur-functional silanes, processing oils and vulcanization raw materials RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Selection Workflow
1
Process & Requirement Definition
Map the unit operation and define the functional, purity, and regulatory requirements the chemical input must meet.
2
Chemistry & Grade Selection
Match the solvent, intermediate, acid or base, catalyst, or specialty additive to the process and downstream compatibility.
3
Trial & Specification
Validate performance at bench or pilot scale, and set the grade, treat rate, and packaging to match throughput and handling.
4
Quality & Supply Assurance
Lock the spec with a CoA and secure multi-origin sourcing for supply resilience and consistent lot quality.
Recommended Chemistries (6)
Bis-(3-triethoxysilylpropyl)-tetrasulfide
CAS 40372-72-3
Silicone Fluids & Oils
Conditioning
Si-69 tetrasulfide silane couples precipitated silica to the rubber backbone and donates sulfur during cure, cutting rolling resistance in silica-filled compounds
Physical Description: Liquid; Liquid, Other Solid; Other Solid; Dry P…
Full Details
Bis--disulfide
CAS 56706-10-6
Silicone Fluids & Oils
Sulfide silane (Si-75) for tire compounds
Si-75 disulfide silane gives the same silica coupling with less premature scorch than the tetrasulfide
Physical Description: Other Solid; Liquid; Pellets or Large Crystals,…
Full Details
Mercaptopropyltrimethoxysilane
CAS 4420-74-0
Silanes & Organosilanes
Mercapto silane for rubber compounding
High-efficiency mercapto coupling agent for silica-reinforced rubber where maximum reinforcement is needed
Full Details
2-Mercaptobenzothiazole (MBT)
CAS 149-30-4
Specialty Additives
Corrosion Inhibition
2811 (2-MERCAPTOBENZOTHIAZOLE) · Class MBT is the classic thiazole accelerator that speeds sulfur vulcanization of natural and synthetic rubber (catalog also assigns it a Crosslinking / Curing role)
Melting Point: 177–181 °C Boiling Point: Decomposes Density: 1.42 at 20 °C
Full Details
Naphthenic
CAS 64742-52-5
Specialty Additives
Naphthenic base oil for soluble MWF
Naphthenic process/extender oil that plasticizes the compound, aids filler dispersion and lowers Mooney viscosity during mixing
Full Details
Ethylene propylene diene monomer
CAS 25038-36-2
Specialty Additives
Film Formation
EPDM base elastomer for weather/ozone-resistant seals and roofing compounds
Full Details
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