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Solvent-Based HDI Blocked Aliphatic Polyisocyanate Crosslinkers

Kabasph^® KFB-3375D is a low-free, low-odor, high-compatibility blocked HDI crosslinker delivering excellent flexibility, adhesion, and chemical resistance for can & coil coatings, flexible packaging adhesives, and industrial finishes.

Chemical Name :
Polyisocyanate
Application :
Can Coatings, Coil Coatings, and Adhesives for Flexible Packaging
Product model :
KFB-3375D
Viscosity :
2500±1000 CPS at 25℃
Appearance :
Colorless to pale yellow transparent viscous liquid
brand :
Kabasph

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product introduction

Kabasph^®KFB-3375D is a solvent-based aliphatic polyisocyanate blocked crosslinking agent based on HDI (hexamethylene diisocyanate). It serves as the hardener component for formulating one-component (1K) polyurethane baking coatings with excellent lightfastness and weather stability. As a functional additive in drying systems, it significantly enhances coating flexibility and adhesion. Its HDI-based aliphatic structure ensures excellent non-yellowing and weather resistance, while the blocked design provides room-temperature storage stability and the process convenience of heat-triggered curing. It also exhibits great compatibility with various plasticizers (such as phosphoric acid, sulfonic acid, adipic acid and phthalate). It's recommended to conduct compatibility testing for the mixture to ensure optimal performance.

Specification

Type	Solvent-Based HDI Blocked
Isocyanate type	HDI Trimer
Appearance	Colorless to pale yellow transparent viscous liquid
Solid Content(%)	75±2
NCO(%)	11.2±0.5
Free Monomer( %)	≤0.2
Viscosity/25℃(CPS)	2500±1000
Deblocking Temp. (℃)	130~140
STD Solvent/Customized	Solvent Naphtha 100

Key Features

Low free HDI
Light color & Low odor
Excellent compatibility
Stable storage
Excellent chemical resistance

Applications

Can & Coil Coatings
Adhesives for Flexible Packaging

Solvent-Based HDI Blocked Aliphatic Polyisocyanate Crosslinkers

Packing and Storage

Net weight: 215KG/drum or customized

It should be stored in tightly sealed original containers in a cool and well ventilated place and protected from moisture, heat, and foreign materials. The shelf life is around 12 months when stored in a sealed package.

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Solvent-Based HDI Blocked Aliphatic Polyisocyanate Crosslinkers

Kabasph® KFB-3375D is a low-free, low-odor, high-compatibility blocked HDI crosslinker delivering excellent flexibility, adhesion, and chemical resistance for can & coil coatings, flexible packaging adhesives, and industrial finishes.

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