MatWeb - Material Property Data Advertise with MatWeb!     Register Now
Data sheets for over 170,000 metals, plastics, ceramics, and composites.
MatWeb - Material Property Data HOME  •   SEARCH  •   TOOLS  •   SUPPLIERS  •   FOLDERS  •   ABOUT US  •   FAQ  •   LOG IN    
Recently Viewed Materials (most recent at top)  

Login to see your most recently viewed materials here.

Or if you don't have an account with us yet, then click here to register.

  Searches:   Advanced  | Category  | Property  | Metals  | Trade Name  | Manufacturer  | Recently Viewed Materials
Covestro Bayhydrol® UV XP 2690 Polyurethane Coating
Categories: Polymer; Thermoplastic; Adhesives, Sealants, and Coatings; Thermoset; Polyurethane, TS

Material Notes: Bayhydrol® UV XP 2690 is used for the formulation of waterborne UV coatings for wood and plastic coatings.

Properties / Applications: Bayhydrol® UV XP 2690 is used for the formulation of waterborne UV coatings, especially for application on exterior wood materials. The addition of 1.0 to 2.5 ppw photoinitiator calculated on the solid binder, have proved suitable for initiating the curing reaction.Viscosity is set by the addition of polyurethane thickeners. Matting agents should be added in the form of pastes. After evaporation of the water, the coating is physically dry and can be handable. UV-curing up to 10 m/min. per 80 W/cm lamp will leads to results in a very high final quality. For the formulation of weather resistant coatings, the use of light protecting agents (preferably a combination of UV absorbers and hindered amine light stabilizers) is recommended. A modification of the photoinitiator component towards longer absorbing types (MAPO, BAPO) might be necessary. The resulting formulation should always be tested in weathering experiments with regard to the specific substrate, application and curing conditions. Bayhydrol® UV XP 2690 shows optimum weatherability and excellent chemical resistance. The films are hard and in the same time flexible. The product can also be combined with e.g. Bayhydur® XP 2655 or Bayhydur® 305 to produce ”dual cure ” waterborne UV coatings.

Information provided by Covestro

Available Properties
  • Volatiles, DIN EN ISO 3251, 1g/1h/125 °C/convection oven
  • pH, DIN ISO 976
  • Viscosity, DIN EN ISO 3219/A.3, D= approx. 40 s-1
Property Data

This page displays only the text
of a material data sheet.

To see MatWeb's complete data
sheet for this material (including
material property data, metal
compositions, material suppliers,
), please click the button below.

Manufacturer Notes:
Covestro Deutschland AG, Bayer MaterialScience

Category Notes

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.


Rulon Bearings
Please read our License Agreement regarding materials data and our Privacy Policy. Questions or comments about MatWeb? Please contact us at We appreciate your input.

The contents of this web site, the MatWeb logo, and "MatWeb" are Copyright 1996-2023 by MatWeb, LLC. MatWeb is intended for personal, non-commercial use. The contents, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.