Basonat TU 75 E
Aromatic polyisocyanate
BASF
聚亚安酯 (PU) - 异氰酸盐
Polyurethane (PU) - Isocyanates
ethyl acetate
Dilutable in ethyl acetate, butyl acetate and butyl glycol acetate
Insoluble in aliphatic hydrocarbons
Polyfunctional aromatic isocyanate for two-pack polyurethane
primers and top coats
Polyfunctional toluylene diisocyanate adduct, approx. 75 % solution in
ethyl acetate
Basonat TU 75 E is suitable for crosslinking most hydroxy acrylic resins
such as the Macrynal ®1 SM grades, hydroxy polyester resins and other
compounds containing hydroxyl groups such as silicone resins, castor oil,
epoxy resins and phenol-formaldehyde resins.
Except for difficult substrates such as aluminium or galvanised iron,
Basonat TU 75 E is used for formulating primers. Lightfastness is mostly
insufficient in top coats due to the adduct’s tendency of yellowing.
For weather-resistant top coats, often combinations of aliphatic
polyisocyanates such as Basonat HB 175 MP/X with Basonat TU 75 E are
used.
Solution of a polyfunctional toluylene diisocyanate adduct in ethyl acetate. Used for two-pack polyurethane primers and top coats. Can be used for crosslinking most hydroxy acrylic resins, hydroxy polyester resins and other compounds containing hydroxyl groups such as silicone resins, castor oil, epoxy resins and phenol-formaldehyde resins. Does not suit for difficult substrates such as aluminium or galvanised iron. Can be used in combination with aliphatic polyisocyanates to formulate weather-resistant top coats.