This formulation is designed to produce a high gloss white top coat with superior opacity, durability, and application properties. It incorporates a range of components to achieve the desired characteristics, including binders, pigments, rheology modifiers, and additives for stability and performance enhancement.
Components and Their Functions:
- Water
- Function: Serves as the primary vehicle for the formulation, aiding in dispersion and application.
- Wetting/Dispersing Agent (Block Co-polymer Disperbyk 190)
- Function: Facilitates the dispersion of pigments and fillers, ensuring uniform color development and distribution.
- Foam Control Agent (Blend of modified silicone oils Drew 210-862)
- Function: Controls foam formation during mixing and application, contributing to a smooth finish.
- NSAT Rheology Modifier (Aquaflow NMS-450E)
- Function: Adjusts the viscosity and flow behavior of the formulation, improving its application properties.
- In-can Preservative (Biocide Nuosept BIC)
- Function: Prevents microbial growth within the paint, enhancing its shelf life and stability.
- Pigment (Titanium dioxide Kronos 2190)
- Function: Provides opacity and whiteness to the coating, ensuring good coverage and color retention.
Let Down:
- Water: Used as a vehicle for the let-down phase to adjust the viscosity of the formulation.
- Binder (Urethane alkyd emulsion Synthalat PWM 883): Forms a film that adheres to the substrate, providing adhesion and durability to the coating.
- Dryer (Non-carboxylate iron complex Borchi Oxy-coat 1101): Enhances drying properties, promoting faster curing of the coating.
- Substrate Wetting Agent (Silicon based Surfactant Byk 347): Improves wetting of the substrate, ensuring uniform application and adhesion.
- Surfactant (Phosphate ester Dextrol OC-180HS): Enhances dispersion and stability of the formulation.
- NSAT Rheology Modifier (Aquaflow NHS-350E): Further adjusts the viscosity and flow behavior of the formulation to optimize application properties.
Viscosity Properties:
- Brookfield (20/4): 4400 mPa·s
- Stormer: 120 KU
- ICI: 265 mPa·s
- Leveling (Leneta): 10 (1-10; 10=Best)
- Sag Resistance: 200 micron
- Gloss (60°): 89 GU
- Gloss (85°): 101 GU
(All viscosities are measured at 25°C)