Drewplus™ S-4374 is a foam control agent designed for use in surface coatings, overprint varnishes, and pigmented inks. It is particularly effective in industrial wood coatings applied by various methods, including flow coat, dip, curtain coating, or spray. It also performs well in brush or roller-applied wood coating systems.
Key Features and Benefits
- Foam Control: Effectively reduces and controls foam in various coating applications.
- Versatile Application: Suitable for use in different coating methods such as flow coat, dip, curtain coating, spray, brush, and roller.
- High Compatibility: Works well with a wide range of formulations, including industrial wood coatings and pigmented inks.
Typical Properties
- Appearance: Opaque, white to off-white to yellowish liquid
- Specific Gravity: 1.00
- Density: 8.3 lb/gal
- Viscosity: 3400 cps (Brookfield, RV Spindle #3, 20 rpm, @ 25°C)
- VOC: <0.1% (ASTM D-6886)
- Solubility: Emulsifiable in water
- Solids Content: ~40%
- Freeze Point: 32°F (0°C)
- Flash Point: > 212°F (100°C) (Pensky Martens Closed Cup)
Usage Guidelines
- Dosage:
- Recommended dosage is 0.5-1.0 percent of the formulation weight (5 to 10 pounds per hundred gallons).
- Optimal addition is during the letdown phase or after rheology agents.
- One-third of the total dosage can be added during the mill base stage for effective foam control.
Storage and Handling
- Storage Conditions:
- Store between 50°F (10°C) and 90°F (33°C) in closed packaging.
- Ensure protection from freezing.
- Stability:
- Exhibits good chemical stability under normal storage conditions.
- Can show separation over time; mix or recirculate before use or sampling to ensure homogeneity.
- Materials Compatibility:
- Recommended materials for storage and handling include cross-linked polyethylene, PVC, aluminum, mild steel, stainless steel, Teflon, and Viton.
Safety and Regulatory Information
- Handling: Review the Safety Data Sheet (SDS) for detailed information on safety, handling, and disposal.
- Freeze Protection: Ensure the product is protected from freezing to maintain its effectiveness.
Summary
Drewplus™ S-4374 is a versatile and effective foam control agent for various industrial applications, particularly in wood coatings. Its high compatibility and performance in different application methods make it a reliable choice for manufacturers looking to control foam in their formulations. Proper storage, handling, and dosage are essential to maximize its benefits.
