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Covestro Baybond® VP LS 2277 Polyester Urethane Polymer
Categories: Polymer; Thermoplastic; Polyester, TP

Material Notes: Baybond VP LS 2277 is an anionic/non-ionic polyester urethane polymer. It is used as the film-forming component in glass fiber sizes.

Properties / Applications: Baybond VP LS 2277 was developed for the sizing of glass fibers used to reinforce thermoplastics, particularly polyamide. Glass fiber sizes based on Baybond VP 2277 are characterized by their outstanding film-forming properties and very good adhesion. They have high colorfastness, even at elevated temperatures. Baybond VP LS 2277 is also highly resistant to shear forces and hydrolysis. As with any product, use of Baybond VP LS 2277 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.

Information provided by Covestro

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Physical PropertiesMetricEnglishComments
Density 1.00 g/cc0.0361 lb/in³
Volatiles 58 - 61 %58 - 61 %0.9-1.1g / 1h / 125°C, convection oven
Particle Size <= 0.50 µm<= 0.50 µmDv 0.5
 <= 20 µm<= 20 µmDv 0.9
pH 6.5 - 8.56.5 - 8.5
 
Mechanical PropertiesMetricEnglishComments
Tensile Strength at Break 28.0 MPa4060 psi
Elongation at Break 1250 %1250 %
100% Modulus 2.10 MPa
@Strain 100 %
305 psi
@Strain 100 %
 
Thermal PropertiesMetricEnglishComments
Glass Transition Temp, Tg -49.0 °C-56.2 °F

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.

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PCOVEST0075 / 201858

Specialty Compounds RTP Company

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