Aromatic/aliphatic polyisocyanate based on toluylene diisocyanate/ hexamethylene diisocyanate.
In combination with various Desmophen® grades or other suitable substances containing hydroxyl groups to formulate clear or pigmented, two-component polyurethane coatings characterized by rapid drying and good lightfastness.
| Supplier | |
|---|---|
| Additive Classification | Curing Agent |
| Industry | Adhesives, Automotive & Transportation, Building & Construction, Electrical & Electronics, HI&I Care, Home Renovation, Marine Vessels, Paints & Coatings, Petrochemical, Wind Energy |
Generally speaking, Desmodur® HL BA has good compatibility with the solvents listed as follows. However, the solutions formed must be tested for their storage stability. Desmodur® HL BA can be thinned with ethyl acetate,butyl acetate and 1-methoxypropylacetate-2. Aromatics are not true solvents and have only limited compatibility as diluents. Prolonged storage of a solution with low binder content may result in turbidity and sedimentation. Only PU grade solvents should be used (< 0.05 % water). The solvent should not contain reactive groups.
Desmodur® HL BA is compatible with many Desmophen® polyester grades. It has limited compatibility with acrylates containing hydroxyl groups. Generally speaking, Desmodur® HL BA is compatible with standard Desmodur® grades.
The rapid initial drying and early sandability are of particular advantage when formulating wood coatings. With just a few coats, high-bodied clear or pigmented finishes can be easily achieved.
