BI-70C Water-based Blocked Polyisocyanate Crosslinker

BI-70C is a water-based blocked polyisocyanate (HDI trimer) crosslinker supplied by Dongsen as a raw-material crosslinker. It is confirmed for the Textile / Fabric application direction, including bonding or lamination formulation evaluation, with final suitability to be validated in the customer's actual formulation and process conditions.

Features: Water-Based, HDI Trimer, Anionic, 120°C Deblocking

Application: Textile & Fabric

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Technical Data

Property Value
Product type Water-based blocked polyisocyanate crosslinker
Technology HDI Trimer
Ionic type Anionic / water-dispersible
Solid content 70%
Valid NCO 7.7 ± 0.5%
Free NCO ≤ 0.2%
Viscosity 2500 ± 1000 cps (25°C, rotational viscometer)
Deblocking temperature 120°C
Solvent / carrier PMA

Specifications are based on Dongsen’s current approved product data source. Final suitability should be validated in the customer’s actual formulation and process conditions.

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