Solvay METLBOND® 2550 Film Adhesive

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Solvay METLBOND® 2550 Film Adhesive
Categories:	Polymer; Adhesive; Thermoset; Bismaleimide (BMI)
Material Notes:	Metlbond 2550 is a 350°F (177°C) cure, 440° (227°C) post-cure, modified BMI film adhesive with good high-temperature adhesive properties for bonding composites, metals and sandwich structures. Features & Benefits: Service temperature of -67 to 450°F (-55 to 232°C) dry / 375°F (191°C) wet Six-fold toughness increase over first generation BMI adhesives Outstanding bond strength with composites and metals Controlled flow for sandwich structural bonding Epoxy-like processing with 21+ days shop life at 75°F (24°C) No volatiles evolved during cure Co-cures with Cytec’s BMI composite systems Reticulation capability with unsupported variant Applications: Honeycomb sandwich bonding Metal-to-metal bonding Metal-to-composite bonding Composite-to-composite bonding Information provided by Cytec, subsequently acquired by Solvay.
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Physical Properties	Metric	English	Comments

Volatiles	<= 1.0 %	<= 1.0 %

Mechanical Properties	Metric	English	Comments
Tensile Strength	3.17 MPa @Temperature 191 °C	460 psi @Temperature 376 °F	Flatwise, Co-cured Skins, 5150-3/AS4, HRH-327 core, 1/8 inch cell, 0.625 inch thick, Core failure
	3.52 MPa @Temperature 191 °C	510 psi @Temperature 376 °F	Flatwise, Pre-cured Skins, 5150-3/AS4, HRH-327 core, 1/8 inch cell, 0.625 inch thick, Core failure
	3.65 MPa @Temperature 24.0 °C	530 psi @Temperature 75.2 °F	Flatwise, 5140-4/IM7, 8.1 lb/ft3 density, 1/4 inch cell, 0.5 inch thick core
	3.79 MPa @Temperature 24.0 °C	550 psi @Temperature 75.2 °F	Flatwise, Co-cured Skins, 5150-3/AS4, HRH-327 core, 1/8 inch cell, 0.625 inch thick, Core failure
	3.79 MPa @Temperature 24.0 °C	550 psi @Temperature 75.2 °F	Flatwise, Pre-cured Skins, 5150-3/AS4, HRH-327 core, 1/8 inch cell, 0.625 inch thick, Core failure
	5.10 MPa @Temperature 24.0 °C	740 psi @Temperature 75.2 °F	Flatwise, Co-cured Skins, 5250-3/AS4, 7.9 lb/ft3 density, 1/8 inch cell, 0.5 inch thick
	6.14 MPa @Temperature 24.0 °C	890 psi @Temperature 75.2 °F	Flatwise, Pre-cured Skins, 5250-3/AS4, 7.9 lb/ft3 density, 1/8 inch cell, 0.5 inch thick
	6.48 MPa @Temperature 191 °C	940 psi @Temperature 376 °F	Flatwise, Co-cured Skins, 5250-3/AS4, 7.9 lb/ft3 density, 1/8 inch cell, 0.5 inch thick
	7.17 MPa @Temperature 191 °C	1040 psi @Temperature 376 °F	Flatwise, Pre-cured Skins, 5250-3/AS4, 7.9 lb/ft3 density, 1/8 inch cell, 0.5 inch thick
Shear Strength	10.87 MPa @Temperature 232 °C	1576 psi @Temperature 450 °F	Single Lap, 0.1 psf
	14.8 MPa @Temperature 191 °C	2150 psi @Temperature 376 °F	Double Lap, wet , 0.1 psf
	17.06 MPa @Temperature 24.0 °C	2475 psi @Temperature 75.2 °F	Single Lap, 0.1 psf
	17.2 MPa @Temperature 177 °C	2500 psi @Temperature 351 °F	Double Lap, wet , 0.1 psf
	18.6 MPa @Temperature 191 °C	2700 psi @Temperature 376 °F	Lap Metal/Metal, Non-Exposed Control
	20.7 MPa @Temperature 24.0 °C	3000 psi @Temperature 75.2 °F	Lap Metal/Metal, Non-Exposed Control
	21.4 MPa @Temperature 24.0 °C	3100 psi @Temperature 75.2 °F	Lap Metal/Metal, 500 Hours 375°F (191°C)
	22.1 MPa @Temperature 191 °C	3200 psi @Temperature 376 °F	Lap Metal/Metal, 1000 Hours 375°F (191°C)
	22.1 MPa @Temperature 177 °C	3200 psi @Temperature 351 °F	Lap Metal/Metal, 0.6 psf
	22.8 MPa @Temperature 24.0 °C	3300 psi @Temperature 75.2 °F	Lap Metal/Metal, 1000 Hours 375°F (191°C)
	23.4 MPa @Temperature 24.0 °C	3400 psi @Temperature 75.2 °F	Double Lap, 0.1 psf
	24.1 MPa @Temperature 24.0 °C	3500 psi @Temperature 75.2 °F	Lap Metal/Metal, 0.6 psf
	24.8 MPa @Temperature 191 °C	3600 psi @Temperature 376 °F	Lap Metal/Metal, 500 Hours 375°F (191°C)

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	232 °C	450 °F
Minimum Service Temperature, Air	-55.0 °C	-67.0 °F
Glass Transition Temp, Tg	250 °C	482 °F	Tan Delta Peak

Processing Properties	Metric	English	Comments
Shelf Life	3.00 Month @Temperature 4.00 °C	3.00 Month @Temperature 39.2 °F
	6.00 Month @Temperature -18.0 °C	6.00 Month @Temperature -0.400 °F

Descriptive Properties
Sandwich Peel	31 Nm/m		0.1 psf
	9 Nm/m		0.6 psf

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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PCYTED053 / 180355

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