Name: Dow SILASTIC 9204-20 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow SILASTIC 9204-20 Defoamer

Highly effective silicone-based defoamer for rapid foam knockdown and long-term foam suppression.
Excellent compatibility with silicone elastomer systems, including high-consistency rubber (HCR) and liquid silicone rubber (LSR).
Low dosage requirement—typically effective at 0.05–0.3 wt% in formulated systems.
Thermally stable up to 200 °C, maintaining performance during high-temperature curing processes.
Non-migrating formulation that minimizes surface defects and ensures consistent part aesthetics.

Typical Applications Of Dow SILASTIC 9204-20 Defoamer

Defoaming in liquid silicone rubber (LSR) injection molding compounds.
Foam control during high-consistency rubber (HCR) calendering and extrusion.
Processing aid in silicone gel and encapsulation formulations for electronics.
Anti-foaming agent in silicone-based adhesives and sealants manufacturing.
Stabilization of silicone emulsions used in textile and personal care ingredient applications.

Chemical Type	Modified polydimethylsiloxane (PDMS) with silica dispersion
Product Form	Paste
Appearance	Off-white to light beige viscous paste
Primary Applications	Defoaming in silicone elastomer processing
Key Features	Low volatility, non-staining, shear-stable
Benefits	Improved mold release, reduced pinholes, enhanced surface finish
Recommended Storage	Store in original sealed container at 5–30 °C; protect from freezing and direct sunlight
Shelf Life	24 months from date of manufacture under recommended storage conditions

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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