Toluene diisocyanate manufacturer Knowledge Covestro Bayhydur 3100 standard two-component water-based PU curing agent

Covestro Bayhydur 3100 standard two-component water-based PU curing agent

                         

Type

Based on Hydrophilic aliphatic polyisocyanate of hexamethylene diisocyanate (HDI)

Form of Supply

The ratio is 1:1 Propylene glycol methyl ether acetate/ The concentration in xylene is about 70%

Purpose

As Hardener component of high-quality waterborne two-component polyurethane systems and as an additive to improve the performance of waterborne coatings

Product Specifications

Features

Value

Measurement unit

Method

NCOcontent

17.4±0.5

%

DIN EN ISO 11 909

Viscosity,23°C

2800±800

mPa·s

DIN EN ISO 3219/A.3

Color value(Hazen)

≤ 60

DIN EN 1557

FreeHDI monomer

≤ 0.15

%

DIN EN ISO 10 283


Other data*

Features

Value

Measurement unit

Method

Viscosity@25°C

about 2500

mPa·s

DIN EN ISO 3219/A.3

equivalent

about 241

%

DIN EN ISO 3251

Density

about 1.16

g/ml

DIN EN ISO 2811

Flashpoint

>250

°C

DIN EN 22 719

*The above values ​​are general information and are not part of the product specification.

Solubility/Dilution
Bayhydur® 3100 can be diluted with esters, ether esters, xylene and solvent naphtha 100. Generally, it has good compatibility with the above solvents, but the stability of the prepared solution still needs to be checked. Solvents of polyurethane grade should be used (less than 0.05 % water and must not contain reactive groups such as hydroxyl or amino groups).

Features/Applications
  Since Bayhydur® 3100 is hydrophilic, it is easy to emulsify in aqueous media. The product is primarily used as a crosslinker for aqueous hydroxyl-containing polyol binders (Bayhydrol®). Bayhydur® 3100 can also be added to traditional hydroxyl-free dispersions to improve their properties.

Save
The product is sensitive to moisture. Store in tightly closed containers at temperatures not exceeding 30°C. Under proper storage conditions, this product has a shelf life of at least 6 months. Viscosity will increase slightly with time.

Safety: Hazard Identification
May cause an allergic reaction by skin contact. This product is harmful to aquatic organisms and may cause long-term adverse effects in the aquatic environment. This product contains isocyanates. The product safety data sheet should be strictly followed. It includes relevant information such as labeling, transportation and storage, as well as relevant information on product use, product safety and ecology.

align:center”>density

about 1.16

g/ml

DIN EN ISO 2811

Flashpoint

>250

°C

DIN EN 22 719

*The above values ​​are general information and are not part of the product specification.

Solubility/Dilution
Bayhydur® 3100 can be diluted with esters, ether esters, xylene and solvent naphtha 100. Generally, it has good compatibility with the above solvents, but the stability of the prepared solution still needs to be checked. Solvents of polyurethane grade should be used (less than 0.05 % water and must not contain reactive groups such as hydroxyl or amino groups).

Features/Applications
  Since Bayhydur® 3100 is hydrophilic, it is easy to emulsify in aqueous media. The product is primarily used as a crosslinker for aqueous hydroxyl-containing polyol binders (Bayhydrol®). Bayhydur® 3100 can also be added to traditional hydroxyl-free dispersions to improve their properties.

Save
The product is sensitive to moisture. Store in tightly closed containers at temperatures not exceeding 30°C. Under proper storage conditions, this product has a shelf life of at least 6 months. Viscosity will increase slightly with time.

Safety: Hazard Identification
May cause an allergic reaction by skin contact. This product is harmful to aquatic organisms and may cause long-term adverse effects in the aquatic environment. This product contains isocyanates. The product safety data sheet should be strictly followed. It includes relevant information such as labeling, transportation and storage, as well as relevant information on product use, product safety and ecology.

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