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Highly flexible silicone-organic hybrid elastomer offering exceptional elongation and recovery.
Excellent thermal stability across a wide operating temperature range (–60 °C to 200 °C).
Good compatibility with common thermoplastics and engineering resins for co-molding applications.
Low compression set, maintaining sealing integrity under prolonged mechanical stress.
Non-toxic formulation compliant with ISO 10993-5 for biocompatibility screening.
Soft-touch overmolded grips for medical handheld devices and diagnostic equipment.
Sealing components in automotive fluid systems requiring resistance to oils and coolants.
Dynamic gasket materials for industrial housings exposed to vibration and thermal cycling.
Flexible interface layers in wearable electronics enclosures.
Hybrid elastomeric parts for consumer appliances needing tactile performance and durability.
| Chemical Type | Silicone-organic hybrid elastomer |
| Product Form | Pellets |
| Appearance | Off-white to light tan, free-flowing pellets |
| Primary Applications | Overmolding, soft-touch components, dynamic seals |
| Key Features | Thermoplastic processability, high elasticity, low compression set |
| Benefits | Reduced assembly steps, improved part integration, enhanced user ergonomics |
| Processing Method | Injection molding, two-shot molding |
| Regulatory Status | Meets USP Class VI requirements; RoHS compliant |
Q1: What is the primary function of DOWSIL EL-8040 ID in silicone formulations?
A: DOWSIL EL-8040 ID functions as a silicone organic elastomer designed to enhance elasticity, surface softness, and tactile performance in cured silicone systems—particularly in personal care and medical-grade silicone gels and rubbers.
Q2: Is DOWSIL EL-8040 ID compatible with addition-cure (platinum-catalyzed) silicone systems?
A: Yes, DOWSIL EL-8040 ID is formulated for compatibility with addition-cure silicone systems and does not interfere with platinum catalyst activity under typical processing conditions.
Q3: How does DOWSIL EL-8040 ID affect the rheology and processing behavior of high-viscosity silicone bases?
A: It acts as a process aid that reduces viscosity and improves flow characteristics without significantly compromising final mechanical integrity—enabling easier mixing, degassing, and mold filling in high-consistency formulations.
Q4: Can DOWSIL EL-8040 ID be used in skin-contact applications such as wearable medical devices or cosmetic silicone gels?
A: Yes, it is suitable for use in skin-contact applications where biocompatibility and low extractables are required; however, final regulatory compliance depends on the full formulation and intended use, and should be verified through appropriate testing.
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E-mail: wangxingqiang@ericwchem.com
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