Defom 5500 is a solvent-based defoamer specialized for solvent coatings, with a focus on polyurethane systems. It effectively inhibits and eliminates foam produced during coating manufacturing, mixing, and application, ensuring smooth, defect-free results in processes like curtain coating, roller coating, and dip-coating.
Solvent-based, specifically designed for solvent coatings, with particular suitability for polyurethane systems.
Excels in inhibiting and eliminating foam generated during manufacturing, mixing, and application stages.
Effectively controls bubbles in thick-film polyurethane coatings to boost film quality.
Addresses foam from chemical reactions (e.g., carbon dioxide release) in two-component polyurethane systems.
Prevents surface flaws such as fish-eyes, pinholes, and craters in topcoats and clearcoats
Ideal for polyurethane coatings, especially thick-film types.
Suitable for coating processes including curtain coating, roller coating, and dip-coating.
Applied in two-component polyurethane systems to manage reaction-caused foam.
Used in topcoats and clearcoats to maintain defect-free surfaces.
Chemical Composition | Modified polysiloxane |
Physical Form | Colorless to slightly yellow clear liquid |
Non-Volatile Content (%) | 1.3–1.5% |
Specific Gravity | 0.850–0.875 |
Refractive Index (25℃) | 1.493–1.503 |
Solvent | Aromatic hydrocarbon solvents |
Key Applications | Polyurethane coatings, solvent 型 paints, curtain/roller coating processes, two-component systems, topcoats/clearcoats. |
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E-mail: wangxingqiang@ericwchem.com
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