HT-600 low viscosity solvent-free hardener

Low viscosity
Excellent weather resistance
Environmentally friendly solvent-free

Application

WANNATE® HT-600 (1,6-hexamethylene diisocyanate based polyisocyanate) is a low viscosity solvent-free aliphatic polyisocyanate based on hexamethylene diisocyanate (HDI), colorless to slightly yellowish clear liquid.

Equivalent Weight ~ 183

Density at 25 ℃ ~ 1.16 g/cm3

WANNATE® HT-600 can be used as the hardener component for lightfast two-component polyurethane coatings with high resistance to chemicals and weathering, very good gloss retention and outstanding mechanical properties.

Preferred co-reactants are polyacrylates or polyester polyols.

The main applications for coatings based on WANNATETM HT-600 are automotive refinishing, transportation, industrial finishing and plastics.

Specification

Properties	Unit	Specification
NCO Content	%	22.5 ~ 23.5
Viscosity at 25 °C	mPa·s	900 ~ 1500
Chromatic Number	APHA	≤ 40
HDI Content	%	≤ 0.25

Compatibility

WANNATE® HT-600 can be mixed with the following products: aliphatic

polyisocyanates, polyester polyols, aromatic polyisocyanates and polyacrylates.

Storage / Solubility

Storage in original container. Protect from moisture, heat and foreign material.

WANNATE®HT-600 is sensitive to moisture. Storage at higher temperatures may result in increasing of color and viscosity.

WANNATE® HT-600 can be thinned with esters, ketones and aromatic hydrocarbons such as ethyl acetate, butyl acetate, methoxypropylacetate, acetone, methyl ethyl ketone, methyl isobutyl ketone, cyclohexanone, toluene, xylene, solvent naphtha 100 and mixtures thereof. Generally speaking, it has good compatibility with the solvents listed. However, the solutions formed must be tested for their storage stability. Only PU grade solvents should be used (max.0.05% water, absence of reactive groups such as hydroxyl or amino groups).

WANNATE® HT-600 is not recommended to be thinned below 40% solid content. Prolonged storage of a solution with a lower content may result in turbidity and sedimentation, even gelation.