Covestro Bayflex® 180 Polyurethane Elastomeric RIM, 20% Mica Filled, MDI-based 2-Component Liquid System

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Covestro Bayflex® 180 Polyurethane Elastomeric RIM, 20% Mica Filled, MDI-based 2-Component Liquid System (discontinued **)
Categories:	Polymer; Thermoset; Filled/Reinforced Thermoset; Polyurethane, TS; Thermoset Polyurethane, Elastomer, Glass Filled; Rubber or Thermoset Elastomer (TSE)
Material Notes:	0.150 in. thickness. RIM = Reaction Injection Molding Information provided by Bayer Corporation, Polyurethanes Division As of 1 September 2015, Bayer MaterialScience was separated from Bayer AG and officially adopted its new name – Covestro.
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Physical Properties	Original Value	Comments

Density	1.25 g/cc	ASTM D792
Water Absorption at Saturation	0.20 %	240 hours; Bayer Test
Linear Mold Shrinkage	0.0055 cm/cm	Bayer Test

Mechanical Properties	Original Value	Comments
Tensile Strength, Ultimate	35.0 MPa	ASTM D638/D412
Elongation at Break	22 %	ASTM D638/D412
Flexural Modulus	2.07 GPa	ASTM D790
Izod Impact, Notched	1.10 J/cm	ASTM D256
Tear Strength	140 kN/m	Die C; ASTM D624

Thermal Properties	Original Value	Comments
CTE, linear	135 µm/m-°C @Temperature 20.0 °C	ASTM D696

**
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PB2B79 / 26621

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