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

DOWSIL SILASTIC 3-8186 Defoamer_

DOW SILASTIC 3-8186 is a two-component silicone elastomer crafted for precise sealing uses. It has a 1:1 mixing ratio (Part A/B density: 1.12/1.22 g/cm³) and dynamic viscosity of 135,000/125,000 cps. Under low-temperature curing (75°C/10min), it turns into elastic foam, reaching compressive strength of 0.032-0.33 MPa (25-75% deflection) and tensile strength of 0.18 MPa (140% elongation). Its low sealing force (<26 psi) design lessens assembly stress, making it perfect for automotive and lighting waterproofing through robotic dispensing systems.

Product Information of DOWSIL SILASTIC 3-8186 Defoamer_

  1. Low-Temp Curing: Fully cures at 75°C in 10 minutes, boosting energy efficiency effectively.

  2. Thixotropic Flow Property: With 200,000 cps viscosity, it avoids sagging when applied on vertical surfaces.

  3. Sealing Force Management: The low-density foam (0.225 g/cm³) reduces component deformation to a minimum.

  4. Thermal Stability: Functions normally from -40°C to 150°C and meets automotive thermal cycling test standards.

  5. Accurate Mixing: The 1:1 weight ratio allows it to work with automated equipment smoothly.

Areas of Application of DOWSIL SILASTIC 3-8186 Defoamer_

  1. Automotive: Seals headlights and provides waterproofing for ECU housings (meeting IP67 standards).

  2. Lighting: Encapsulates LED modules and enhances moisture resistance of outdoor fixtures.

  3. Electronics: Packages sensors and enables waterproofing for consumer electronic devices.

  4. Industrial Equipment: Makes valve gaskets and seals pipeline joints.

Specifications Of DOWSIL SILASTIC 3-8186 Defoamer_

Type
Two-component silicone foam
Density (Part A/B)
1.12/1.22 g/cm³
Viscosity (Part A/B)
135,000/125,000 cps
Mix Ratio
1:1 (by weight)
Curing Condition
75°C/10 minutes
Compressive Strength (25% deflection)
0.032 MPa
Tensile Strength
0.18 MPa (ASTM D412)
Elongation at Break
140%
Operating Temperature
-40°C to 150°C
Packaging
18.1 kg/pail (Part A/B separately)


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