Covestro Bayhydur BL XP 2706 water-based closed PU curing agent chemical resistance high flexibility

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Product Features
Reactive blocked aliphatic polyisocyanate is used in combination with Bayhydrol® polyols to prepare water-dilutable lightfast one-component polyurethane baking varnishes and can be used as water-based baking varnishes Systematic additives that help improve coating hardness, impact strength, chemical resistance and adhesion. Bayhydur® BL XP 2706 is supplied without co-solvents.

Type
Reactive blocked aliphatic polyisocyanate

Supply Form
About 40% aqueous solution (neutralized with 2.8pts of dimethylethanolamine)

Feature Data*

Features	Value	Measurement unit	Method
Viscosity@23°C Dis10s-1	100-2500	mPa·s	DIN EN ISO 3219/A.3
Non-volatile content (1g/60min/105°C)	38-42	about1275
Flashpoint	>94	°C	DIN EN ISO 2719/A
Density@20°C	about1.07	kg/l	DIN51757

**This data is general information.

Features/Applications
Bayhydur® BL XP 2706 can be used as a curing agent for water-dilutable lightfast one-component polyurethane baking varnishes. As with conventional DD coatings, the degree of crosslinking and choice of polyol component will affect the properties of the resulting coating film. Applications include: automotive OEM coatings (impact primers, surfacers and topcoats) and advanced industrial baking finishes (eg for electronic devices, components and automotive accessories). Bayhydur® BL XP 2706 does not contain cosolvents, has good thermal stability (yellowing resistance) and is more active than the existing crosslinkers Bayhydur® BL 5140 and Bayhydur® VP LS 2310.
         
The crosslinking effect of Bayhydur® BL XP 2706 varies with the degree of crosslinking and co-reactants.
Slight thermal yellowing may occur depending on baking temperature and type of polyol used.

Solubility/Dilution
Bayhydur® BL XP 2706 can be diluted with water. Dilution solutions should always be checked for compatibility and storage stability, especially if co-solvents are used.

Save
- Store in original Covestro airtight container.
- Recommended storage temperature: 5-23°C.
- Protect from moisture, heat and foreign substances.

Storage Time
The manufacturer declares that, under the condition that the product is stored in full compliance with the requirements of the above "storage" clause and handled properly, the product will be transported within 6 days from the date of transportation stated on the transportation document Compliance with the specifications or characteristic values ​​described in the "Specification or characteristic values" clause above, as applicable, during the month. If the product exceeds the above-mentioned 6-month period, it does not mean that it no longer meets the set values ​​in the specifications or characteristic values. However, the manufacturer recommends that products older than 6 months from the date of shipment be tested before use to confirm that they still comply with the values ​​set forth in the specification or characteristic values. The manufacturer does not make any promises for products that have been shipped more than 6 months from the date of shipment, and does not assume any responsibility and liability for non-compliance with specifications or set values ​​​​in the characteristic values.

set value. However, the manufacturer recommends that products older than 6 months from the date of shipment be tested before use to confirm that they still comply with the values ​​set forth in the specification or characteristic values. The manufacturer does not make any promises for products that have been shipped more than 6 months from the date of shipment, and does not assume any responsibility and liability for non-compliance with specifications or set values ​​​​in the characteristic values.