Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow DOWSIL EP-5500 Powder Silicone Elastomer

Dow DOWSIL EP-5500 Powder Silicone Elastomer is a free-flowing, thermally stable silicone elastomer powder designed for high-shear compounding into plastics and rubbers. It enhances surface softness, scratch resistance, and tactile feel without compromising mechanical properties. Ideal for automotive interiors, consumer electronics, and medical devices requiring biocompatibility and low-volatility performance.
  • dow dowsil ep 5500 powder silicone elastomer_9c4a56d3
  • dow dowsil ep 5500 powder silicone elastomer_9c4a56d3

Features Of Dow DOWSIL EP-5500 Powder Silicone Elastomer

  1. Free-flowing, non-dusting powder form for easy handling and dispersion in dry-blend systems.

  2. Thermally stable silicone elastomer offering excellent resilience and compression set resistance.

  3. Compatible with a wide range of thermoplastics, thermoplastic elastomers (TPEs), and engineering resins.

  4. Enables tactile softness, improved grip, and reduced surface friction without compromising structural integrity.

  5. Non-migrating formulation ensures long-term performance stability and surface clarity in finished parts.

Typical Applications Of Dow DOWSIL EP-5500 Powder Silicone Elastomer

  1. Soft-touch overmolding for consumer electronics housings and wearable device components.

  2. Tactile enhancement in automotive interior trim, buttons, and control surfaces.

  3. Surface modification of medical device grips and ergonomic handles requiring biocompatibility support.

  4. Functional additive in powder-coated industrial equipment for improved grip and impact absorption.

  5. Blending agent in thermoplastic compounds for personal care applicators and cosmetic packaging.

Specifications Of Dow DOWSIL EP-5500 Powder Silicone Elastomer

Chemical TypeHigh-consistency silicone elastomer (HCR) derivative
Product FormFree-flowing, micronized powder
AppearanceWhite to off-white free-flowing powder
Primary ApplicationsTactile modification, soft-touch enhancement, grip improvement
Key FeaturesNon-dusting, thermally stable, non-migrating, easy dispersion
BenefitsImproved surface feel, enhanced ergonomics, compatibility with dry-blend processing
Storage ConditionsStore in original sealed container at 15–25°C; protect from moisture and direct sunlight
Regulatory StatusMeets FDA 21 CFR §177.2600 for indirect food contact (when compounded appropriately)


Dow DOWSIL EP-5500 Powder Silicone Elastomer – Frequently Asked Questions (FAQ)

Q1: What is the primary function of DOWSIL EP-5500 in formulations?

A: DOWSIL EP-5500 is a free-flowing powder silicone elastomer designed to provide soft-touch feel, improved slip, and enhanced surface smoothness in solid and semi-solid personal care and cosmetic products—such as powders, pressed compacts, and anhydrous sticks—without compromising structural integrity.


Q2: How is DOWSIL EP-5500 incorporated into formulations?

A: It is typically added during the dry blending stage and disperses readily into oil phases or powdered systems. No pre-solubilization or high-shear processing is required, making it compatible with standard manufacturing equipment used for cosmetics and topical products.


Q3: Is DOWSIL EP-5500 compatible with common cosmetic actives and pigments?

A: Yes—it demonstrates broad compatibility with typical cosmetic ingredients including metal oxides (e.g., titanium dioxide, iron oxides), organic pigments, emollients, waxes, and polymer binders. Its inert silicone backbone minimizes reactivity and helps maintain formulation stability over time.


Q4: Does DOWSIL EP-5500 affect the water resistance or wear performance of finished products?

A: It contributes to improved film-forming behavior and surface cohesion, which can enhance rub-off resistance and longevity on skin. While not a waterproofing agent itself, its presence often supports more uniform and durable deposition of active and pigment components.



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