Basonat HI 290 B
Polyisocyanate
BASF
聚亚安酯 (PU) - 异氰酸盐
Polyurethane (PU) - Isocyanates
n-butyl acetate
Dilutable with butyl acetate, methyl ethyl ketone, methoxypropyl acetate, xylene and Solvesso 100
Polyfunctional isocyanate for lightfast and weather-resistant
polyurethane finishes – solvent-containing Basonat HI 100 –
Polyisocyanate based on an isocyanurate of hexamethylene diisocyanate,
solution 90 % in n-butyl acetate
Basonat HI 290 B is suitable for crosslinking most hydroxy acrylic resins
Basonat HI 290 B, the solvent-containing form of Basonat HI 100, is used
in combination with acrylic resins containing hydroxylic groups for particu-larly
weather-resistant and lightfast top coats. There is not always sufficient
compatibility with polyester resins containing hydroxy groups.
Results from weathering trials of many years have shown better retention
of gloss in most cases in comparison to polyisocyanates based on
hexamethylene diisocyanate biurets (Basonat HB 100 and HB 175 MP/X).
When using Basonat HI 290 B or Basonat HI 100 instead of Basonat HB 100
or Basonat HB 175 MP/X, due to the formers’ higher viscosity the non-volatile
fraction in paints can be raised.
Polyfunctional polyisocyanate based on an isocyanurate of hexamethylene diisocyanate solution in n-butyl acetate. Used for lightfast and weather-resistant polyurethane finishes such as top coats. Can be used for crosslinking most hydroxy acrylic resins. Offers good retention of gloss.