Toluene diisocyanate manufacturer Application Covestro Bayhydur 305 waterborne HDI polyisocyanate easy to mix high gloss

Covestro Bayhydur 305 waterborne HDI polyisocyanate easy to mix high gloss

Covestro Bayhydur 305 waterborne HDI polyisocyanate easy to mix high gloss

Type Hydrophilic aliphatic polyisocyanate based on hexamethylene diisocyanate
Form of Supply None Solvent-based
Purpose Curing agent for waterborne two-component polyurethane coating

 

Product Specifications

Features Value Measurement unit Method
NCOcontent 16.2 ±0.4 % DIN EN ISO 11 909
Viscosity@ 23℃ 6,500 ±1,500 mPa ·s DIN EN ISO 3219
Hazencolor value span> ≤ 150 DIN EN 1557
isocyanate monomer content < 0.15 % (by weight) DIN 55 956

 

Other Data*

Features Value Measurement unit Method
Density about1.16 g/cm3 DIN 53 217
Flashpoint about230 DIN EN 53 213

 

Solubility/Dilution
Bayhydur 305 generally has good compatibility with organic solvents such as: esters, ether esters, xylene and solvent naphtha 100. However, in any case the solubility/miscibility of the prepared solution must be tested. Polyurethane grade solvents should be used (moisture content <0.05%)

 

Features/Applications
This product is a crosslinking agent for water-based paint. It is especially suitable for use in the civilian field where it can be mixed and used immediately after shaking or manual stirring.
Even in the pre-diluted condition, the coating film is still transparent and bright. The mixing ratio of mill base to curing agent is usually 10:1.

enter”>g/cm3

DIN 53 217

Flashpoint

about230

DIN EN 53 213

 

Solubility/Dilution
Bayhydur 305 generally has good compatibility with organic solvents such as: esters, ether esters, xylene and solvent naphtha 100. However, in any case the solubility/miscibility of the prepared solution must be tested. Polyurethane grade solvents should be used (moisture content <0.05%)

 

Features/Applications
This product is a crosslinking agent for water-based paint. It is especially suitable for use in the civilian field where it can be mixed and used immediately after shaking or manual stirring.
Even in the pre-diluted condition, the coating film is still transparent and bright. The mixing ratio of mill base to curing agent is usually 10:1.

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