HDI Low viscosity TPA-100
Date：2023-10-20 Categories：News
Type :
Aliphatic Polyisocyanate (HDI Trimer)
Features:
# High NCO content
# Lower viscosity
# Good coated film appearance
# Good weather resistance
# Low residual monomer
Applications:
# Two-component applications# Plastic coatings# Auto refinish coatings
# Automobile, motorcycle ; base coat and top coat# Heavy duty coatings
Typical properties：
Appearance
|
Colorless to slightly yellowish clear liquid
|
Non-volatile
|
100 wt%
|
Solvent
|
NONE
|
NCO content
|
23.1 wt%
|
Viscosity
|
1400 mPa .s at 25°C
|
Color value
|
<1 (Gardner)
|
NCO equivalent weight
|
Approx.182
|
Flash point
|
252°C
|
Density at 20°c
|
1.17
|
These values provide general information and are not part of the productspecifications.
Stability / thinnability:
DURANATETM TPA-100 can be thinned with esters,
ketones and aromatichydrocarbons such as ethyl acetate, butyl acetate, methoxypropylacetate(PMA), methylethyl ketone, methyl-butyl ketone, cyclohexanone,toluene, xylene, Solvesso #100 andmixture thereof. Generally speaking, it has good compatibility with thesolventmentioned. However, the solutions formed must be tested for their storage stability.Only PU grade solvents can be used (max. 0.05% water, absence of reactive groupssuch as hydroxyl or amines groups). Aliphatic hydrocarbons such as hexane.cyclohexane, methylcyclohexanes and mineral spirits, are unsuitable as solventsbecause of their poor solubility.
DURANATETM TPA-100 should not be thinned to below a solid content of 40%.Prolonged storage of solution with lower solid content may result in turbidity andsedimentation.
Compatibility:
Mixing ratio of DURANATETM TPA-100 with polyols is based on NCO/OH equivalentratio of 1/1.
Storage:
DURANATETM TPA-100 is sensitive to moisture and should therefore always be storedin sealed containers.
Characteristics of iscosity:
Weatherability:
Fig-3. Weatherability of DURANATETM TPA-100 with acrylic polyol
Polyol; Setalux 1198 & 1753 (Nuplex Resins)Weathered by Super-Xenon Weathermeter
