Gold Member Since 2012
Audited Supplier
Dongguan Rayton Chemicals Co., Ltd.

Silane, Silane Coupling Agent, Silane Coupler manufacturer / supplier in China, offering Silane Coupling Agent (RT-69), Petroleum Resin C9, Petroleum Resin C5 and so on.

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Silane Coupling Agent (RT-69)

FOB Price: Get Latest Price
Min. Order: 1 Ton
Port: Ningbo, China
Payment Terms: L/C, T/T, D/P
Basic Info
  • Model NO.: RT-69
  • Appearance: Liquid
  • Classification: Chemical Additives
  • Color: Colorless
Product Description

Silane Coupling Agent (RT-69)

Silane Coupling Agent (RT-69)


Bis [3-(triethoxysilyl) propyl] tetrasulfide




Physical Properties

A pale yellow clear liquid with light odor of ethyl alcohol and soluble easily in ethyl alcohol, acetone, benzene, toluene etc. Insoluble in water.


Alcohol content0.5%
γ2 Content3.0%
Other impurity content1.0%
Viscosity 25ºC (cps) 17.0
Sulfur Content22% ± 1%
Volatility (100°C /10min.) 1.0%
Specific Gravity (25ºC)1.080 ± 0.020
Refractive Index (25ºC)1.480 ± 0.020
 γ2: γ-chloropropyltriethoxy silane.

  1. It mainly contains some silane impurities.

Application Range

RT-69 is a kind of multifunctional silane coupling agent that has been used successfully in the rubber industry. It is used to improve physical and mechanical properties of vulcanizates. It is able to markedly improve tensile strength, tearing strength and abrasive resistance and reduce compression set of vulcanizates. In addition, it can reduce the viscosity and improve the processability of rubber products.
RT-69 is especially suitable to improve the reinforcing properties of fillers that contain hydroxyl groups in all unsaturated polymers having  double bonds or their blends. Silica, talc powder, mica powder and clay can be used in combination with RT-69 in polymers such as NR, IR, SBR, BR, NBR and EPDM.
Recommend dosage 1.0-4.0 PHR


Package and storage

  • 25 or 200, 1000 kg in plastic drum.
  • Sealed storing.
  • Shelf life: Longer than two years in normal storing conditions.

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