Hauthane HD-2503
A polycarbonate-based, aliphatic, water-borne polyurethane dispersion.
Suggested Uses: HD-2503 was developed for general coatings use on wood, plastic and metal substrates. The product offers exceptional resistance to hydrolysis, oxidation and UV-degradation. HD-2503 is ideally suited for exterior applications where film durability and longevity are important considerations.
Characteristics:
- Excellent exterior weathering durability
- Excellent humidity resistance
- Contains n-methyl pyrrolidone co-solvent
Physical Properties
| Solids | 35 % |
| Solids Tolerance | ± 1 % |
| Viscosity | 50 to 500 cps |
| pH | 7.5 to 10.0 |
| Softening Point | 355 ºF |
| Volatile Organic Compounds (VOC) Content (As Supplied) | 126 g/L |
| Sward Hardness | 42 |
Tensile Properties
| Elongation | 210 % |
| Tensile Strength | 6825 psi |
| 100 % Modulus | 4700 psi |
| 200 % Modulus | 6600 psi |
| Note | Tested at 20 inches/minute |
Application
HD-2503 may be formulated into coatings applied by spray, brush or pad applicator. It can be used as a sole vehicle or blended with acrylic emulsions. The rheology may be modified with associative thickeners.
Curing
Typical oven drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties. Enhanced film properties can be obtained when this product is crosslinked with any of a variety of external crosslinking agents.
