Product Information of DOW DOWSIL ACP-3073 Defoamer
Strong Process Adaptability: Performs steadily in pH 14 black liquor and high-temperature cooking.
100% Active Composition: No need for dilution due to full-active content.
Quick Defoaming: Nano-silicone particles break foam in 20 seconds (meets ASTM D892).
Cost-Saving: Lowers per-ton pulp treatment cost by 20% via optimized dosage.
Eco-Friendly: Free of APEO/VOC, complying with FDA 21 CFR 175.105.
Areas of Application of DOW DOWSIL ACP-3073 Defoamer
Kraft Pulping: Prevents fiber loss during pH 12-14 black liquor cooking.
Paper Washing: Improves black liquor extraction in vacuum washers.
Effluent Treatment: Reduces sludge amount in high-COD wastewater (≥30,000 mg/L).
Industrial Cleaning: Works with pH 12-14 alkaline degreasers.
Specifications Of DOW DOWSIL ACP-3073 Defoamer
Type | 100% active silicone defoamer |
Appearance | Gray-white viscous liquid |
Active Content | Polydimethylsiloxane + hydrophobic silica (100%) |
Dynamic Viscosity | 30,000-80,000 mPa·s |
pH Range | 1-14 |
Flash Point | >100°C (closed cup) |
Relative Density | 1.0 (water=1) |
Surface Tension | 23.3 dyn/cm |
Thermal Stability | No stratification (>100°C/24h) |
Recommended Dosage | 0.01%-0.1% (by total weight) |
Shelf Life | 12 months (sealed, 5-40°C) |
Packaging | 200kg/drum |
DOW DOWSIL ACP-3073 Defoamer – Frequently Asked Questions (FAQ)
Q1: What types of industrial coatings and inks is DOWSIL ACP-3073 Defoamer specifically designed for?
A: DOWSIL ACP-3073 is formulated for use in water-based and solvent-borne industrial coatings, including architectural paints, coil coatings, and flexographic and gravure inks where robust foam control and compatibility with acrylic and polyurethane systems are required.
Q2: How does ACP-3073 differ from conventional silicone defoamers in terms of compatibility and surface appearance?
A: Unlike many standard silicone defoamers, ACP-3073 offers enhanced compatibility in demanding formulations, reducing the risk of surface defects such as craters, pinholes, or haziness—particularly in high-gloss and clear-coat systems.
Q3: Is ACP-3073 suitable for low-VOC or high-solids formulations?
A: Yes, ACP-3073 is compatible with low-VOC and high-solids systems due to its low volatility and stable performance across a broad range of resin chemistries and solvent blends.
Q4: What is the recommended addition method to ensure optimal dispersion and performance?
A: For best results, ACP-3073 should be added during the let-down or post-addition stage under moderate agitation. Pre-dilution with a compatible solvent or vehicle may improve uniform dispersion, especially in low-shear systems.
Q5: Can ACP-3073 be used in combination with other additives such as wetting agents or rheology modifiers?
A: Yes, ACP-3073 is generally compatible with common paint additives, though compatibility testing in the final formulation is recommended to confirm stability and performance synergy.
English
Español
tiếng việt
русский
