hdi low viscosity tpa-100

 

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

e_mail us : sales@ohans.com