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

Dowsil 56 Defoamer

DOWSIL 56 Additive is a high-performance silicone-based defoamer, specialized in eliminating microfoams in solvent-based systems while enhancing leveling. Its alkyl-modified polysiloxane structure (100% active) maintains stability at high temperatures (≤150°C) and across broad pH ranges, reducing surface tension to ≤25 mN/m. This not only resolves bubble retention in curtain coating and metallic paints but also boosts gloss by 15%-20% and improves abrasion resistance. Optimized for pigment orientation, it ensures no compromise on recoatability, meeting both eco requirements (VOC<50g/L) and high-efficiency industrial needs.

  • dowsil 56 defoamer
  • dowsil 56 defoamer

Product Information of Dowsil 56 Defoamer

  1. Micro-Foam Targeting: Rapidly removes micron-sized bubbles in solvent coatings, minimizing pinholes and craters.

  2. Leveling & Gloss Enhancement: Lowers surface tension for superior flow, boosting gloss in high-gloss wood and industrial coatings.

  3. Robust Stability: Performs reliably in pH 2-12 and high-temperature baking processes.

  4. Wide Compatibility: Works with acrylic, epoxy, and PU resins; does not interfere with recoating.

  5. Cost Efficiency: Delivers results at low dosages (0.05%-0.5%), cutting overall costs.

Areas of Application of Dowsil 56 Defoamer

  1. Wood Coatings: Eliminates bubbles in solvent-based varnishes for curtain coating (0.05%-0.5% dosage).

  2. Industrial Coatings: Enhances scratch resistance and metallic pigment alignment in coil/auto OEM paints.

  3. Printing Inks: Improves leveling in solvent flexo inks, reducing print streaks (0.05%-0.1%).

  4. Plastic Coatings: Boosts gloss and wear resistance for engineering plastics (e.g., PC, ABS).

Specifications Of Dowsil 56 Defoamer

Type
Alkyl-modified polysiloxane defoamer
Appearance
Light yellow liquid
Active Content
100%
Viscosity (25°C)
1500 cSt
Specific Gravity (25°C)
1.006
Flash Point
>101℃
Recommended Dosage
0.05%-0.5% (on total formulation)
Packaging
25kg/drum


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