DXB-75 Solvent-Based Blocked Isocyanate Crosslinkers

DXB-75 C/D/E is a solvent-based aliphatic polyisocyanate blocked crosslinking agent based on HDI with different unblocking temperatures. It is used as the hardener component to formulate lightfast and weather stable one-component (1K) polyurethane coatings.

Features

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

DXB-75 can be used in one-component polyurethane baking coatings, mainly used  as an additive in drying systems to provide enhanced flexibility and adhesion. Applications also include textile coatings, crosslinking agents for printing adhesives, industrial finishes from electrical appliances, coil coatings to primer surfacers and topcoats for automotive finishing.

  • Specifications

  • Solubility

Type Solvent-Based HDI Blocked
Appearance Colorless to pale yellow transparent viscous liquid
Solid Content% 75±2
NCO% 11.2±0.5
Free Monomer % ≤0.2
Viscosity/ /25℃  (CPS) 3000±1000
Deblocking Temp. ℃ 120 / 130 / 150
  • Can be diluted with ketones, esters, ethers and aromatic compounds
  • DXB-75 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.

Related Products

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DXB-3465 Solvent-based IPDI Weathering resistance , Light color & Low odor , Excellent compatibility , Stable storage Can&Coil Coatings See Product
BI-40 C/D/E Water-dispersive HDI Outstanding hydrophilicity , Excellent flexibility , Chemical resistance , Stable storage Can&Coil Coatings See Product

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