Covestro Baytec® SPR-186A Black Polyurethane

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Covestro Baytec® SPR-186A Black Polyurethane
Categories:	Polymer; Thermoset; Polyurethane, TS
Material Notes:	Characterization: Baytec SPR-186A is a two-component 100%-solids spray system with a Shore A hardness of 86. Properties / Applications: Baytec SPR-186A is a two-component 100%-solids spray system with a Shore A hardness of 86. The isocyanate component is a modified diphenylmethane diisocyanate (MDI) qusi-prepolymer and the polyol component is a polyether blend. The system can be pigmented to most any color. As with any product, use of the Baytec SPR-186A in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability. Information provided by Covestro
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Physical Properties	Original Value	Comments

Specific Gravity	1.04 g/cc	Polyol
	1.06 g/cc	ASTM D792
	1.10 g/cc	Isocyanate
Viscosity	1800 cP	Isocyanate
	1800 cP	Polyol

Mechanical Properties	Original Value	Comments
Hardness, Shore A	86	ASTM D2240
Tensile Strength at Break	11.6 MPa	ASTM D412
Elongation at Break	121 %	ASTM D412
Tear Strength	55.0 pli	Split Tear; ASTM D1938
Taber Abrasion, mg/1000 Cycles	4.0 @Load 1.00 kg	H-18

Thermal Properties	Original Value	Comments
Flash Point	201 °C	Polyol
	210 °C	Isocyanate

Processing Properties	Original Value	Comments
Gel Time	0.167 - 0.250 min

Descriptive Properties
Appearance	Clear amber liquid	Isocyanate
	Off white liquid	Polyol
Content	12%	NCO, Isocyanate
Hydroxyl number	[mg KOH/g], Polyol

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PCOVEST0266 / 202049

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