Covestro Desmophen 1652 linear polyester polyol for flexible polyurethane coating formulations

                             

Type	Linear Hydroxy Polyester
Form of Supply	Solvent-free liquid polyol
Purpose	Formulate Flexible Polyurethane Coating

Specifications

Features	Value	Measurement unit	Method
color value (Hazen)	≤ 150		DIN EN 1557
acid value	≤ 4	mgKOH/g	DIN EN ISO 2114
Viscosity@23°C	11,000 ± 2,000	mPa·s	DIN EN ISO 3219
Hydroxyl content	1.6 ± 0.2	%	ISO 6796
Water content	≤ 0.1	%	DIN 51 777/1

Other Data*

Features	Value	Measurement unit	Method
equivalent	about1060
Density@20℃	about1.17	g/ml	DIN EN ISO 2811-2
Flashpoint	about218	°C	DIN EN ISO 2719
Pour point	about -12	°C	DIN ISO 3016

amily:宋体">Method

equivalent

about1060

Density@20℃

about1.17

g/ml

DIN EN ISO 2811-2

Flashpoint

about218

°C

DIN EN ISO 2719

Pour point

about -12

°C

DIN ISO 3016

*This data is general information and is not part of the product manual.

dissolve Sexuality/Dilution
Desmophen® 1652 products can be diluted with esters and ketones, such as: ethyl acetate, butyl acetate, methyl ethyl ketone and methyl isobutyl ketone, 1-methoxypropylacetate Ester-2, cyclohexanone and acetone. However, the storage stability of the prepared solution must be tested. Solutions with low binder content can cause turbidity and precipitation after long-term storage. Polyurethane grade solvents should be used (water content < 0.05%, no other active impurities).

Phase Capacitance
Desmophen® 1652 can be mixed with Desmophen® 800, 1100, 1200 and Desmodur® L, HL.
Before each mixing, it is recommended to test its compatibility.

Features /app
Desmophen® 1652 can be mixed with Desmodur® VL to formulate flexible solvent-free coatings and sealer coats. When mixed with Desmodur® L or HL, a dry film is formed only in the case of excessive crosslinking.

Save
Desmophen® 1652 is slightly hygroscopic. This product is stable for at least 6 months when stored in the sealed original container below 30°C.
The product tends to become cloudy at low temperatures. After long-term storage under heating or normal temperature, the product will become clear and can be used without any negative impact on product quality.

*This data is general information and is not part of the product specification.

dissolve Sexuality/Dilution
Desmophen® 1652 products can be diluted with esters and ketones, such as: ethyl acetate, butyl acetate, methyl ethyl ketone and methyl isobutyl ketone, 1-methoxypropylacetate Ester-2, cyclohexanone and acetone. However, the storage stability of the prepared solution must be tested. Solutions with low binder content can cause turbidity and precipitation after long-term storage. Polyurethane grade solvents should be used (water content < 0.05%, no other active impurities).

Phase Capacitance
Desmophen® 1652 can be mixed with Desmophen® 800, 1100, 1200 and Desmodur® L, HL.
Before each mixing, it is recommended to test its compatibility.

Features /app
Desmophen® 1652 can be mixed with Desmodur® VL to formulate flexible solvent-free coatings and sealer coats. When mixed with Desmodur® L or HL, a dry film is formed only in the case of excessive crosslinking.

Save
Desmophen® 1652 is slightly hygroscopic. This product is stable for at least 6 months when stored in the sealed original container below 30°C.
The product tends to become cloudy at low temperatures. After long-term storage under heating or normal temperature, the product will become clear and can be used without any negative impact on product quality.