Materials — Process Challenge

Ingredientes para Composição de Borracha e Elastômeros

A composição de borracha exige silanos com função enxofre, óleos de processo e matérias-primas de vulcanização
Updated Jun 2026
Abordagem de solução

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
Fluidos e Óleos de Silicone
Condicionamento
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, solid, or dry powder
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Bis--disulfide
CAS 56706-10-6
Fluidos e Óleos de Silicone
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: Solid, liquid, pellets or crystals, or dry powder
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Mercaptopropiltrimetoxissilano
CAS 4420-74-0
Silanos e Organossilanos
Mercapto silane for rubber compounding
High-efficiency mercapto coupling agent for silica-reinforced rubber where maximum reinforcement is needed
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2-Mercaptobenzothiazole (MBT)
CAS 149-30-4
Aditivos Especiais
Inibição de corrosão
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)
Ponto de fusão:177–181 °C   Ponto de ebulição:Decomposes   Densidade:1.42 at 20 °C
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Naphthenic
CAS 64742-52-5
Aditivos Especiais
Óleo básico naftênico para fluido de corte solúvel (MWF)
Naphthenic process/extender oil that plasticizes the compound, aids filler dispersion and lowers Mooney viscosity during mixing
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Ethylene propylene diene monomer
CAS 25038-36-2
Aditivos Especiais
Formação de filme
EPDM base elastomer for weather/ozone-resistant seals and roofing compounds
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