product

Blocked Polyisocyanates

Kabasph^® blocked polyisocyanates combine the durability of polyurethane chemistry with the simplicity of one-component processing. They offer extended shelf life, precise thermal activation, strong film properties, and formulation flexibility—making them the preferred choice for automotive finishes, coil coatings, and waterborne stoving systems.

Chemical Name :
Blocked Polyisocyanates
Application :
Can&Coil Coatings, Adhesives for Flexible Packaging, Textile coatings, Printing pastes, and Industrial topcoats
Product model :
KFTB-65C, KFTB-65D, KFTB-65E, KFB-3375C, KFB-3375D, KFB-3375E, KFB-3465C, KFB-3465D, KFB-3465E, BIW-40C, BIW-40D, BIW-40E, BIW-70C,BIW-70D, BIW-70E
Appearance :
Colorless to pale yellow transparent viscous liquid
brand :
Kabasph

Inquiry now

product introduction

Kabasph^®blocked polyisocyanates are available in two primary categories: solvent-based products derived from TDI, HDI, and IPDI blocking, and water-based HDI-blocked products designed for environmentally friendly systems.

When the isocyanate functional groups (–NCO) are temporarily blocked, the product can be premixed with polyol resins to form a stable one-component (1K) coating without premature crosslinking. The curing reaction is triggered only upon heating to the deblocking temperature, typically ranging from 120°C to 200°C depending on the blocking agent used. This 1K baking paint technology has been widely adopted in coil coating for can and tin packaging, where high-speed processing and precise curing are essential.

Product data

Items	KFTB-65 C/D/E	KFB-3375 C/D/E	KFB-3465 C/D/E	BIW-40C/D/E	BIW-70C/D/E
Type	Solvent-Based TDI Blocked	Solvent-Based HDI Blocked	Solvent-Based IPDI Blocked	Water-Dispersive HDI Blocked	Water-Dispersive HDI Blocked
Solid Content%	65±2	75±2	65±2	40±2	70±2
Valid NCO%	8.0±0.3	11.2±0.5	7.5±0.5	4.1±0.5	10.0±0.5
Free NCO%	≤0.2	≤0.2	≤0.2	≤0.2	≤0.2
Viscosity(cps)	8000±2000	3000±1000	800±300	150~500	5000±2000
Deblocking Temp℃	120/130/150	120/130/150	120/130/150	120/130/150	120/130/150

Key Advantages of Blocked Polyisocyanates

Extended Shelf Life & Storage Stability
One-Component Convenience
Precise Crosslinking Control
Superior Film Performance After Cure
Environmental Compliance
Operational Efficiency

Applications

Can&Coil Coatings
Adhesives for Flexible Packaging
Textile coatings
Printing pastes
Industrial topcoats

Pacakging and Storage

215KG/drum or customized

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.

Tags :

Leave A Message

categories

Featured products

Related Products

Waterbased Polyisocyanates

Based on HDI, Kabasph® PUW series PU curing agent, also called PU hardenr, offers water-dispersible polyisocyanates designed for waterborne coatings in the wood, industrial, and flooring applications. Additionally, they can be used in adhesive formulations to improve mechanical performance.

Aliphatic Polyisocyanates

Kabasph® HDI-based aliphatic polyisocyanates combine non-yellowing durability, chemical resilience, and mechanical toughness to provide long-lasting protection for coatings and adhesives exposed to demanding outdoor conditions.

Blocked Polyisocyanates

Kabasph® blocked polyisocyanates combine the durability of polyurethane chemistry with the simplicity of one-component processing. They offer extended shelf life, precise thermal activation, strong film properties, and formulation flexibility—making them the preferred choice for automotive finishes, coil coatings, and waterborne stoving systems.

Customized Polyisocyanates

Kabasph is dedicated to the research, development, and production of high-performance curing agents engineered to extend coating service life, deliver exceptional anti-yellowing properties, and provide outstanding chemical resistance. Our advanced curing agents—including solvent-based and waterborne polyisocyanates (such as HDI biuret and HDI trimer)—ensure long-term protection and aesthetic durability, even under demanding outdoor or industrial environments.

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.

View All Products

Corporate Culture

Persisting on the operation concept of "Pursue honesty and quality at the same time, win hearts and profits together", the China AAB group’s people insist on the enterprise spirit of “environmental-friendly and continuous innovation, and dedicates service to all followers and customers around the world.” we have become long-term stable suppliers for many paint giants in the Europe, North American, the Middle East, Southeast Asia, Japan, South Korea and other countries and regions.