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Soft, skin-friendly durometer (Shore A ~10–20) ideal for direct-contact applications.
Excellent thermal stability across –60 °C to +200 °C operating range.
Good compression set resistance ensuring long-term sealing and cushioning performance.
Low extractables and biocompatibility compliant with ISO 10993–5 and USP Class VI requirements.
Easy to process via injection molding, extrusion, or compression molding without pre-curing.
Medical wearable devices including sensor housings and patient interface pads.
Consumer electronics soft-touch grips and protective gaskets for portable devices.
Food-grade seals and gaskets for kitchen appliances and beverage dispensing systems.
Automotive interior components such as dashboard buttons, knobs, and acoustic dampening elements.
Personal care device components requiring hypoallergenic, non-irritating elastomeric interfaces.
| Chemical Type | Platinum-cured silicone elastomer blend |
| Product Form | Two-part liquid system (Part A + Part B) |
| Appearance | Translucent to milky viscous liquid |
| Primary Applications | Medical devices, consumer electronics, food contact, automotive interiors |
| Key Features | Ultra-soft, low compression set, high biocompatibility, easy processing |
| Benefits | Enhanced user comfort, reliable long-term sealing, regulatory-ready formulation |
| Cure System | Pt-catalyzed hydrosilylation |
| Storage Conditions | Store at 15–25 °C; protect from moisture and direct sunlight |
Q1: What is the primary function of DOWSIL 9046 in silicone elastomer formulations?
A: DOWSIL 9046 is a pre-blended silicone elastomer system designed to enhance processability and improve surface quality in high-consistency rubber (HCR) and liquid silicone rubber (LSR) compounds. It functions as a processing aid and softening modifier, helping to reduce viscosity during mixing and molding while maintaining good mechanical integrity in the cured state.
Q2: Is DOWSIL 9046 compatible with both platinum-cured and peroxide-cured silicone systems?
A: Yes, DOWSIL 9046 is formulated for broad compatibility with standard platinum-catalyzed LSR and HCR systems, as well as peroxide-cured silicone elastomers. However, compatibility should always be verified under actual processing conditions, especially when used with highly sensitive platinum catalysts or specialty inhibitors.
Q3: How does DOWSIL 9046 affect the cure kinetics of silicone elastomers?
A: DOWSIL 9046 typically has minimal impact on cure speed in platinum-cured systems when used within recommended dosage ranges. In peroxide-cured systems, it may slightly influence scorch time and cure onset depending on formulation, so optimization of cure cycles is advised during scale-up.
Q4: What are the recommended handling and storage conditions for DOWSIL 9046?
A: Store in original sealed containers at temperatures between 5–30 °C, away from direct sunlight and sources of heat or moisture. Avoid prolonged exposure to elevated temperatures prior to use, as this may affect blend stability. Containers should be resealed promptly after each use to prevent contamination or volatilization of low-MW components.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
