Bayhydrol® U 2750

Contact an Expert
i
Market Switch
Selection will influence the results you get.
Copied to clipboard

About

Product Types

No data available

Material

No data available

General Characterization

Bayhydrol U 2750 is an aliphatic, hydroxyfunctional polycarbonate ester-polyurethane dispersion, cosolvent-free.
It is used as a binder for the formulation of water-reducible two-component polyurethane coatings.

Storage Conditions

Bayhydrol U 2750 should be stored in tightly sealed original containers and protected from freezing, heat, and foreign materials. The product is sensitive to freezing. Prologed freezing can damage the product irreversibly. Prolonged storage at higher temperatures may result in a decrease of viscosity and/or an increase of average particle size, possibly resulting in sedimentation or coagulation.
The viscosity of the product is largely governed by the pH. As the pH may decrease during storage, a decrease in viscosity is also to be expected. The viscosity can be restored to its original value by the addition of small amounts of an aqueous 10% solution of dimethyl ethanol amine. Recommended storage temperature is 5º-30ºC.

Sampling

No data available

Packaging Type

No data available

Technical Properties & Datasheets

Characteristics

Property Name Test Method Unit Value
Viscosity at 23°C, (D = 40s^-1) mPa∙s 100 - 1,500
Non-volatile content (1g/1h/125°C) % 39.0 - 43.0
pH 10% 7.0 - 9.0

Specifications

Property Name Test Method Unit Value
OH content (solid resin) % approx. 3.6
Density at 20°C g/ml approx. 1.06
Acid number (solid resin) mg KOH/g 25.0 - 29.0

Downloads

Technical Data Sheet
Safety Data Sheet
No direct download available, please visit www.productsafetyfirst.covestro.com

Related topics

Do you want to know more about Bayhydrol® U 2750?
Get in touch with our experts!

Contact form image Zoe

How can we contact you?

* Mandatory Fields

Compare