POLURENE BK 1175

1 of 70 products in this brand
POLURENE BK 1175 is a blocked isocyanate suitable for the formulation of non-yellowing IK stoving enamels; it can be used in traditional stoving enamels to flexibilize and to increase adhesion.

Chemical Family: Aliphatics, Polyisocyanates

End Uses: Coil Coating, Solventborne Coating

Viscosity: 24000.0 - 36000.0 cps

Features: Excellent Adhesion, Improved Flexibility

Knowde Enhanced TDS

Identification & Functionality

Technologies

Features & Benefits

Characteristics and Applications
  • Blocked isocyanate suitable for the formulation of non yellowing 1K stoving enamels
  • It flexibilize and to increase the adhesion.
Properties

POLURENE BK 1175 is an internal crosslinker used for the formulation of IK productsbased on hydroxylated resin, polyester and acrylic.

POLURENE BK 1175 is an aliphatic product with optimum weathering resistance for outdoor application. Its high flexibility gives perfect adhesion on metallic substrate that need post forming process.

POLURENE BK 1175 is cured in oven and finds its application in stoving enamels for OEM, can and coil coating.

Typical stoving cycles for POLURENE BK 1175 in combination with saturated polyester are: 160 °C 60 min, or 180 °C 15 min, or 200 °C 7 min or once catalyzed 130 °C 60 min, or 150 °C 15 min, or 175 °C 7 min.

Depending on the resin used and the stoving time, yellowing may occur at temperatures above 160 °C. In coil coating systems, POLURENE BK 1175 cures without the addition of DBTL @ 241°C PMT (peak metal temperature) and above. With addition of 1 % DBTL, same system reacts @ 224 °C PMT. The activation condition are function of the temperature and time, can be considered a general guideline that curing can be from 20-40min @ 150°C to 5-10min @ 200°C. The combination with catalyst let the possibility to reduce time and/or temperature.

Applications & Uses

Compatible Substrates & Surfaces

Properties

Physical Form
Typical Properties
ValueUnitsTest Method / Conditions
Non Volatile Content75.0%
SolventSolvesso 100
Type of IsocyanateHDI
Free NCO0.2%
Blocked NCO10.6 - 11.6%
Viscosity (23°C)24000 - 36000mPa-s
Max Color GardnerI

Regulatory & Compliance

Certifications & Compliance
Chemical Inventories

Storage & Handling

Shelf Life
12 Months
Storage and Shelf Life

In sealed drums we guarantee a storage life of 12 months, provided the product is stored under dry and cool condition.