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

Dow DOWSIL SM 7036 EX Silicone Emulsion

Dow DOWSIL SM 7036 EX is a high-performance silicone emulsion from Dow’s DOWSIL™ portfolio, delivering exceptional water repellency, softness, and durability for textile and nonwoven applications. It offers stable emulsion consistency, easy handling, and excellent compatibility with common finishing systems while maintaining breathability and low yellowing tendency.
  • dow dowsil sm 7036 ex silicone emulsion_f0f8843e
  • dow dowsil sm 7036 ex silicone emulsion_f0f8843e

Features Of Dow DOWSIL SM 7036 EX Silicone Emulsion

  1. Highly stable anionic silicone emulsion with excellent shelf life under standard storage conditions.

  2. Delivers superior softness, smoothness, and hydrophobicity to treated substrates.

  3. Compatible with common textile auxiliaries, including cationic, nonionic, and low-ionic systems.

  4. Low foaming profile suitable for continuous pad-batch and exhaust dyeing processes.

  5. Eco-preferred formulation with zero APEO and compliant with ZDHC MRSL v3.1 Level 1.

Typical Applications Of Dow DOWSIL SM 7036 EX Silicone Emulsion

  1. Cotton and cotton-blend fabric finishing for enhanced hand feel and wrinkle recovery.

  2. Knit and woven polyester-cotton blends in apparel and home textiles.

  3. Nonwoven substrates used in hygiene and medical applications requiring softness and moisture management.

  4. Technical textiles including filtration media and industrial wipes requiring surface hydrophobicity.

Specifications Of Dow DOWSIL SM 7036 EX Silicone Emulsion

Chemical TypeAnionic polydimethylsiloxane (PDMS) emulsion
Product FormAqueous emulsion
AppearanceOpaque white to off-white liquid
pH (1% aqueous solution)5.0 – 6.5
Active Content36.0 ± 1.0 wt%
Viscosity (Brookfield, #3 spindle, 20 rpm, 25°C)100 – 400 mPa·s
Particle Size (D50)Approx. 0.15 – 0.25 µm
Freeze-Thaw StabilityPasses 3 cycles (-5°C / 25°C)


Dow DOWSIL SM 7036 EX Silicone Emulsion – Frequently Asked Questions (FAQ)

Q1: What is the primary function of DOWSIL SM 7036 EX in coatings and inks?

A: DOWSIL SM 7036 EX is a silicone emulsion designed to provide surface modification benefits—such as improved slip, mar resistance, and substrate wetting—without significantly affecting gloss or intercoat adhesion in waterborne systems.


Q2: Is DOWSIL SM 7036 EX compatible with common water-based polymer systems?

A: Yes, it demonstrates good compatibility with acrylic, styrene-acrylic, vinyl acetate, and polyurethane dispersions. Compatibility should always be confirmed in the final formulation due to sensitivity to pH, electrolytes, and surfactant balance.


Q3: How should DOWSIL SM 7036 EX be incorporated into a formulation?

A: It is typically added during the let-down stage under low-shear conditions to avoid destabilizing the emulsion. Pre-dilution with water or a compatible solvent may improve uniform dispersion, especially in high-solids or viscous systems.


Q4: Does DOWSIL SM 7036 EX affect film formation or drying behavior?

A: At typical use levels, it does not interfere with film coalescence or air-drying kinetics. However, excessive addition may delay water evaporation or lead to surface migration issues, so dosage should be optimized for each system.


Q5: Can DOWSIL SM 7036 EX be used in applications requiring FDA compliance for indirect food contact?

A: This product is not pre-approved for food-contact applications. Formulators must conduct full regulatory evaluation—including extractables testing and compliance assessment—based on the final end-use and applicable jurisdictional requirements.



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