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Baydur® 728 IBS (35 pcf)

Category:	PUR-MDI , Polyurethane (MDI)
Manufacturer:	Covestro - PUR
Trademark:	Baydur®
Fillers:	-
Ports:	Qinzhou, Shekou, Shanghai, Ningbo
Delivery Terms	FOB, CIF, DAP, DAT, DDP
PDF:	U4ZSSg_Baydur-728-IBS-35-pcf-.pdf
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Message
Baydur 728 IBS is a high-density polyurethane structural foam system used in the reaction injection molding (RIM) process. This system incorporates a specially engineered interactive blowing system (IBS) and internal mold release (IMR). The system is supplied as two reactive liquid components. Component A is a polymeric diphenylmethane diisocyanate (PMDI) and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives. Baydur 728 IBS system is used in applications requiring a UL94 flammability rating of V-0 and/or 5VA for use in electronic, equipment housing, and appliance markets. The applications typically take advantage of the material's strength, excellent surface finish, and large-part capability. As with any product, use of the Baydur 728 IBS system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

Message

Baydur 728 IBS is a high-density polyurethane structural foam system used in the reaction injection molding (RIM) process. This system incorporates a specially engineered interactive blowing system (IBS) and internal mold release (IMR). The system is supplied as two reactive liquid components. Component A is a polymeric diphenylmethane diisocyanate (PMDI) and Component B is a formulated polyol system containing no CFC- or HCFC-blowing additives.

Baydur 728 IBS system is used in applications requiring a UL94 flammability rating of V-0 and/or 5VA for use in electronic, equipment housing, and appliance markets. The applications typically take advantage of the material's strength, excellent surface finish, and large-part capability. As with any product, use of the Baydur 728 IBS system in a given application must be tested (including field testing, etc.) in advance by the user to determine suitability.

General Information
Additive	Blowing Agent Mold Release
Features	Good Strength Good Surface Finish
Uses	Appliances Electrical/Electronic Applications Housings
Processing Method	Reaction Injection Molding (RIM)

Mechanical	Nominal Value	Unit	Test Method
Tensile Strength (Break, 6.35 mm)	13.1	MPa	ASTM D638
Tensile Elongation (Break, 6.35 mm)	8.0	%	ASTM D638
Flexural Modulus (6.35 mm)	814	MPa	ASTM D790
Flexural Strength (6.35 mm)	26.9	MPa	ASTM D790

Impact	Nominal Value	Unit	Test Method
Charpy Unnotched Impact Strength ¹	13	kJ/m²	Internal Method
Notched Izod Impact (6.35 mm)	11	J/m	ASTM D256
Unnotched Izod Impact (6.35 mm)	110	J/m	ASTM D256

Thermal	Nominal Value	Unit	Test Method
Deflection Temperature Under Load (0.45 MPa, Unannealed, 6.35 mm)	71.0	°C	ASTM D648
CLTE - Flow (70°C, 6.35 mm)	1.1E-4	cm/cm/°C	ASTM D696

Note Message
1 .	0.25 in

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