A very hard, polycarbonate-based, aliphatic, waterborne polyurethane dispersion.

Suggested Uses: HD-2504 was developed for general coatings use where exceptional resistance to hydrolysis, oxidation and UV degradation is required. HD-2504 is ideally suited for exterior applications where film durability and longevity are important considerations.

Characteristics:
  • Superior chemical and stain resistance
  • Excellent exterior weathering durability
  • Excellent humidity resistance
  • Contains n-methyl pyrrolidone co-solvent
Unit of Measure

Physical Properties

Solids

N/A 35 %

Solids Tolerance

N/A ± 1 %

Viscosity

N/A 50 to 500 cps

pH

N/A 7.5 to 10.0

Density

N/A 1.06 kg/l

Softening Point

N/A 350 ºF

Volatile Organic Compounds (VOC) Content (As Supplied)

N/A 126 g/L

Sward Hardness

N/A 50

Tensile Properties

Elongation

N/A 100 %

Tensile Strength

N/A 7800 psi

100 % Modulus

N/A 5200 psi

Note

N/A Tested at 20 Inches/Minute

Application

N/A HD-2504 may be used as a sole vehicle or blended with acrylic emulsions for application by conventional or air-assisted spray equipment. It may be thickened with associative thickeners to attain desired application viscosity.

Curing

N/A HD-2504 may be air dried at ambient temperatures with the addition of 5 - 10 % coalescing solvent. For thermal curing, typical oven drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties.