Hauthane HD-2883 DMM

An NMP-free, APEO-free, polyester-based, hydroxyl-functional, aliphatic, water-borne polyurethane dispersion.

Suggested Uses: L-2883 was developed for use with water-dispersible, isocyanate crosslinkers such as Bayer’s Bayhydur 302 or Perstorp’s Easaqua X D 401. The product, when crosslinked provides tough, chemical-resistant, semi-gloss coatings which may be applied to a variety of substrates including concrete, metals, plastics and wood materials.

Characteristics:

  • Superior chemical resistance
  • Excellent exterior weathering durability
  • Excellent humidity resistance
  • Contains dipropylene glycol dimethyl ether co-solvent

Downloads

Hauthane HD-2883 HMM Data Sheet

Physical Properties

Solids
35 %
Solids Tolerance
± 1 %
Viscosity
50 to 500 cps
pH7.5 to 10.0
Density 8.8 lb/gal
Volatile Organic Compounds (VOC) Content (As Supplied)
70 g/L
OH Equivalent Weight (As supplied)
3100
Sward Hardness44

Tensile Properties

Elongation
230 %
Tensile Strength
7000 psi
100 % Modulus
4850 psi
200 % Modulus
6800 psi
Note
Tested at 20 inches/minute

Application

L-2883 crosslinked with water-dispersible isocyanates may be spray applied using single-component equipment. The workable potlife is approximately 3 hours at the suggested crosslinker ratio of 2.0 to 1.0 NCO / OH.

Curing

L-2883, crosslinked with a water dispersible isocyanate, will dry to a hard film in 30 minutes at ambient room temperature (65 – 70 ºF) and humidity (RH 50 %). Ultimate cured properties will take 3 – 5 days to develop. If heat is available, the ultimate properties can be attained in shorter time. Typical oven drying temperatures and dwell times for aqueous coatings are sufficient to produce optimal film properties.