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Polyisocyanates

BURNOCK polyisocyanates are used mainly as hardeners for two-component systems. They are used in broad applications ranging from woodcraft and floor coatings to anticorrosion coatings for steel bridges and tanks, as well as coatings for automotive repairs and parts. As base polyol, we offer BURNOCK polyester resin, ACRYDIC acrylic resin, FLUONATE fluorine resin and BURNOCK waterborne resin.

Applications

  Architectural Marine/
Heavy duty
Automotive Electric
Appliances
Machinery Metal Wood/
Floor
Others
Polyisocyanates 1 1 1   2 2 2 1
  • * 1:Optimal 2:Standard

Product Lineup

We offer both aromatic (yellowing) types with excellent drying properties and aliphatic (non-yellowing) types with great light resistance. For each type, adduct type having great flexibility and isocyanurate type having high hardness are available to meet various needs.

Polyisocyanates (Yellowing type): BURNOCK

Product Name Solvent Non-volatile
Content (%)
Viscosity
(Gardner/25°C)
Color (Gardner) Free NCO
Monomer
(varnish %)
NCO 
(Varnish  %)
Features
D-750 Ethyl acetate 74.0~76.0 V~Y ≦2 ≦0.50 12.5~13.5 Fast drying,
hardness
D-800 n-Butyl acetate,
Ethyl acetate
49.0~51.0 A2~A ≦3 ≦1.0 7.0~8.0 Super-fast drying,
crack resistance

Polyisocyanate (yellowing type): BURNOCK

Polyisocyanates (Non-yellowing type): BURNOCK

Product Name Solvent Non-volatile
Content (%)
Viscosity
(Gardner/25°C)
Color (Gardner) Free NCO
Monomer
(varnish %)
NCO 
(Varnish  %)
Features
DN-902S - ≧99 U~X ≦1 ≦0.50 23.0~24.0 Solvent-free, light resistance,
drying property
DN-950 Ethyl acetate 74.0~76.0 K~N ≦1 ≦0.50 12.0~13.0 Light resistance, standard product
DN-955* Toluene,
Propylene glycol
monomethyl
ether acetate
74.0~76.0 D~I ≦1 ≦0.50 5.9~6.9 Flexibility, light resistance
DN-980* Ethyl acetate 74.0~76.0 A2~B ≦1 ≦0.50 15.0~16.0 Compatibility, light resistance,
drying property
DN-990* Mineral spirit 74.0~76.0 B~F ≦1 ≦0.50 13.0~14.0 Processability, compatibility,
light resistance
  • *These products can be supplied as solvent-free.

Polyisocyanate (non-yellowing type): BURNOCK

Blocked Polyisocyanate: BURNOCK

Product Name Solvent Non-volatile
Content (%)
Viscosity
(Gardner/25°C)
Color (Gardner) NCO 
(Varnish  %)
Features
D-550 Cellosolve acetate, 
Ethyl acetate, etc.
54.0~56.0 E~G ≦2 6.0~7.0

Block isocyanate of DN-950;
no change in color; light resistance
for heat curing type

Water-dispersible Polyisocyanate: BURNOCK

Product Name Type Solvent Non-volatile
Content (%)
Viscosity
(Gardner/25°C)
NCO 
(Varnish  %)
Features
DNW-5500 Solution Propylene glycol
monomethyl ether acetate
79.0~81.0 G~M 13.0~14.0

Waterborne two component hardener

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