HDI Manufacturer | HDI Factory | High Quality HDI Products – chemhdi.com HDI 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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