Bayhydrol A-Aqueous Acrylate Dispersion

Covestro Bayhydrol A 2695 Waterborne hydroxyl functional polyacrylic dispersion High hardness and high chemical resistance

type	Aqueous Hydroxy-Functional Polyacrylic Dispersion
form of supply	About 41% aqueous solution/neutralization ratio with triethanolamine/dimethylethanolamine (3:1) is about 48.8:7.6:2.6
use	Bayhydrol® A XP 2695 has excellent chemical resistance, increased NCO/OH ratio can improve chemical resistance

Specifications

characteristic	Numerical value	Units of measurement	method
Non-volatile content (1g/1h/125℃)	40-43	%	DIN EN ISO 3251
Viscosity, 23℃	2000-3500	mPa.s	DIN EN ISO 3219/A.3
pH (1:4 dilution in deionized water)	7.2-8.2

other data*

characteristic	Numerical value	Units of measurement	method
equivalent	about 830	g/mol
Flash point (no flash point up to initial boiling point)	>95	°C	DIN ENISO 2719/A
Density@20℃	about 1.06	g/ml	DIN EN ISO 2811
Hydroxyl content, solid resin (measured value)	about 5.0	%
Acid value	about 9.4	mg KOH/g	DIN EN ISO 3682

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

application
Mainly used for the preparation of self-drying or drying coating systems with extremely high chemical resistance. The cured film is strong, resilient, and has high gloss, good weather and light resistance, and excellent chemical resistance. The direct application of varnishes containing Bayhydrol® A XP 2695 to wood may cause discoloration.

compatibility
Suitable coreactants for the preparation of waterborne two-pack polyurethane coatings are aliphatic polyisocyanates such as Bayhydur® XP 2487/1, XP 2547, XP 2655, 304, Desmodur® N3600 or Desmodur® N3900.

Solubility/Dilutable: Bayhydrol® A XP 2695 can be diluted with water in any proportion

store
- Store in original Bayer MaterialScience sealed container.
- Recommended storage temperature: >0-23℃
- Avoid freezing, heat and foreign substances.

General Information: This product is sensitive to freezing. Prolonged freezing can severely damage the product. Long-term storage at higher temperatures can result in a decrease in viscosity and/or an increase in average particle size, possibly resulting in precipitation or coagulation. Can render the product unusable due to contamination with certain bacteria, molds or algae.

storage time
Provided that the product has been stored in full compliance with the requirements in the "Storage" clause above and handled properly, the product meets the specifications stated in the "Specifications or Characteristic Values" clause above for a period of 6 months from the date of shipment stated on the shipping document or characteristic value (as applicable). The fact that a product exceeds the 6-month period above does not mean that it no longer meets the specifications or the values set in the characteristic values. However, it is recommended that products older than 6 months from the date of shipment be tested prior to use to confirm that they still meet the values set in the specifications or characteristic values. The manufacturer makes no commitments for products older than 6 months from the date of shipment, and does not assume any responsibility or liability for non-conformance to specifications or set values in characteristic values.

Safety
This product data sheet applies only to the latest version of the corresponding safety document. Any updates to safety-related information consistent with legal requirements will only be reflected in the Safety Data Sheet, which will be updated and published. Information related to current classification and labelling, application and process methods, and more safety-related data can be found in the latest available safety data sheets.