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Chemically Resistant adhesives

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Covestro Bayblend® MTR Extruded Thermoplastic
Categories: Polymer; Thermoplastic

Material Notes: Bayblend® MTR sheet is an opaque product offering a combination of low flammability characteristics, robust mechanical properties, and ease of fabrication. Bayblend MTR complies with the flammability and smoke emission requirements for transit materials per the U.S. Federal Railroad Administration, listed in DOT: 49 CFR 238, and meets the criteria in the Bombardier Transportation Standard SMP 800-C for Toxic Gas Generation. Bayblend MTR has lower specific gravity, higher stiffness, higher strength, and greater toughness than typical non-metallic materials used for mass transportation interior components. This combination of physical properties allows for design of thinner and lighter parts that often do not require secondary reinforcement or stiffeners. Bayblend MTR is available in a variety of textures and colors.

Applications: Thermoformed rail interior parts such as seating components, wall cladding, window reveals, and ceiling panels

Information provided by Covestro

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.30 g/ccASTM D792
Moisture Absorption at Equilibrium 0.10 %
@Time 86400 sec
ASTM D570
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell M 60ASTM D785
Hardness, Rockwell R 116ASTM D785
Tensile Strength at Break 49.0 MPaASTM D638
Tensile Strength, Yield 54.5 MPaASTM D638
Elongation at Break 11 %ASTM D638
Modulus of Elasticity 3.72 GPaASTM D638
Flexural Strength 103 MPaASTM D790
Flexural Modulus 3650 MPaASTM D790
Izod Impact, Notched 1.50 ft-lb/in
@Thickness 3.00 mm
ASTM D256
Impact Test 20.0 ft-lb
@Thickness 3.00 mm
ASTM D3763
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity 4.00e+15 ohm-cm
@Thickness 2.84 mm
ASTM D257
 6.60e+15 ohm-cm
@Thickness 3.17 mm
ASTM D257
Dielectric Constant 2.9
@Thickness 3.00 mm,
Frequency 1e+6 Hz
ASTM D150
 3.0
@Thickness 3.17 mm,
Frequency 60 Hz
ASTM D150
Dielectric Strength 24.2 kV/mmASTM D149
Dissipation Factor 0.0040
@Thickness 3.17 mm,
Frequency 1e+6 Hz
ASTM D150
 0.0060
@Thickness 3.00 mm,
Frequency 60 Hz
ASTM D150
 
Thermal PropertiesOriginal ValueComments
CTE, linear 27.3 µin/in-°FASTM D696
Thermal Conductivity 13.3 BTU-in/hr-ft²-°FASTM E1530
Insulation R Value 0.90Btu-ft2-hr°F; ASMT E1530
Deflection Temperature at 0.46 MPa (66 psi) 103 °CASTM D648
Deflection Temperature at 1.8 MPa (264 psi) 96.1 °CASTM D648
Vicat Softening Point 111 °CASTM D1525
Smoke Density 1.5 min<100; ASTM D622
 4.0 min<200; ASTM E622

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PCOVEST0039 / 201822

Chemically Resistant adhesives

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