Product Information of DOW DOWSILASTIC LCF 9618 Defoamer
Superior Elasticity: Offers 600-750% elongation at 0.2-0.5mm thickness, enabling integration with breathable fabrics.
High-Precision Printing: With 4,000-6,000 mPa·s viscosity, it fits 120-200 mesh screens and achieves over 95% dot reproduction.
Eco-Friendly Safety: Contains no phthalates and meets the restrictions of REACH Annex XVII.
Weather Durability: Has Grade 4 UV resistance (per ISO 105-B02), keeping color intact after 3 years of outdoor use.
Quick Curing: Cures at 120°C for 3 minutes or 25°C for 24 hours, raising production efficiency by 30%.
Areas of Application of DOW DOWSILASTIC LCF 9618 Defoamer
Activewear: Creates prints on yoga pants and sports bras that withstand over 10,000 stretches (per ASTM D4964).
Luxury Bedding: Fills embroidered patterns, withstanding 60°C washes (per ISO 6330).
Fashion Apparel: Enables digital direct-to-garment printing with 0.1mm line precision.
Outdoor Gear: Produces abrasion-resistant markings on tents and backpacks, remaining flexible at -30°C.
Technical Textiles: Forms coatings on safety harnesses that pass the EN 343 water repellency test.
Specifications Of DOW DOWSILASTIC LCF 9618 Defoamer
Appearance | Semi-transparent paste |
Viscosity (25°C) | 4,000-6,000 mPa·s |
Solid Content | 65±2% |
Elongation | 600-750% |
Wash Resistance | >50 cycles (60°C industrial wash) |
Curing Conditions | 120°C×3min or 25°C×24h |
Shelf Life | 270 days (sealed, 5-30°C) |
Packaging | 20kg/drum or 200kg/IBC tote |
DOW DOWSILASTIC LCF 9618 Defoamer – Frequently Asked Questions (FAQ)
Q1: What types of industrial systems is DOWSILASTIC LCF 9618 most commonly used in?
A: DOWSILASTIC LCF 9618 is specifically formulated for use in water-based industrial coatings, adhesives, sealants, and construction mortars where persistent foam can interfere with application, film formation, or surface appearance.
Q2: How does LCF 9618 differ from conventional silicone defoamers?
A: LCF 9618 is a low-foaming, hydrophobically modified silicone emulsion designed to provide rapid knock-down and lasting foam suppression without causing surface defects such as craters or pinholes—making it especially suitable for high-gloss and sensitive formulations.
Q3: What is the recommended addition method for optimal performance?
A: For best results, LCF 9618 should be added during the final stage of formulation—typically after pigment dispersion and before rheology adjustment—to ensure uniform distribution while minimizing shear-induced destabilization.
Q4: Is LCF 9618 compatible with common thickeners and biocides used in architectural coatings?
A: Yes, LCF 9618 demonstrates broad compatibility with associative and non-associative thickeners (e.g., HEC, HEUR, HASE) as well as widely used isothiazolinone and benzisothiazolinone biocides—though compatibility testing under actual formulation conditions is always recommended.
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