Name: Ramasa CONTRAPEN-PR 174 Defoamer
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Ramasa CONTRAPEN-PR 174 Defoamer

Highly effective silicone-based defoamer with rapid knock-down and lasting foam suppression.
Excellent compatibility with water-based systems, including acrylic, vinyl acetate, and styrene-butadiene emulsions.
Low dosage requirement—typically effective at 0.05–0.3% w/w in polymerization and coating formulations.
Thermally stable up to 120°C, maintaining performance during high-shear and elevated-temperature processing.
Non-yellowing and non-staining, preserving clarity and color fidelity in sensitive end products.

Typical Applications Of Ramasa CONTRAPEN-PR 174 Defoamer

Chemical Type	Silicone-polyether copolymer dispersion
Product Form	White to off-white viscous liquid
Appearance	Opaque, slightly opalescent emulsion
pH (1% aqueous dispersion)	6.0–7.5
Density (25°C)	1.01–1.04 g/cm³
Viscosity (25°C, mPa·s)	1,500–3,000 (Brookfield RVT, spindle #3, 20 rpm)
Primary Applications	Water-based emulsions, coatings, adhesives, construction chemicals
Key Features	Rapid defoaming, low-foam re-entrainment, shear stability

Get in Touch with ERICW

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E-mail: wangxingqiang@ericwchem.com
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15921782326
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China