Hexcel® Redux® HP655 Toughened BMI film Adhesive

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Hexcel® Redux® HP655 Toughened BMI film Adhesive
Categories:	Polymer; Adhesive; Thermoset; Bismaleimide (BMI)
Material Notes:	Redux® HP655 is a toughened BMI structural adhesive designed for metal to metal, composite to composite, and honeycomb sandwich bonding for both co-cured and precured composite skins. Redux® HP655 combines high fracture toughness and high shear with good peel strengths. Recommended service temperature is up to 350°F wet and 460°F dry. Redux® HP655 was developed to be compatible with Hexcel's entire BMI prepreg product line. Features: Good co-cure potential with Hexcel's BMI prepreg range; Excellent hot lap shear performance; Good fracture toughness; Low volatile content and low out-gassing properties; Available with or without a woven glass carrier. Applications: Metal to metal bonding; Composite to composite bonding; Sandwich constructions.
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Mechanical Properties	Original Value	Comments

Tensile Strength, Yield	1.17 ksi	Neat Resin, RT
	0.725 ksi @Temperature 21.1 °C	Flatwise Tensile; After 500 hrs at 400°F (Weight loss = 0.75%); Composite Honeycomb Sandwich Performance; ASTM C 297
	0.740 ksi @Temperature -55.0 °C	Flatwise Tensile; 2.52" Cell; Aluminum Honeycomb Sandwich Performance; ASTM C 297
	0.740 ksi @Temperature 21.1 °C	Flatwise Tensile; 2.52" Cell; Aluminum Honeycomb Sandwich Performance; ASTM C 297
	>= 0.750 ksi @Temperature 204 °C	Flatwise Tensile; After 500 hrs at 400°F (Weight loss = 0.75%); Composite Honeycomb Sandwich Performance; ASTM C 297
	0.780 ksi @Temperature 204 °C	Flatwise Tensile; 2.52" Cell; Aluminum Honeycomb Sandwich Performance; ASTM C 297
	0.900 ksi @Temperature 21.1 °C	Flatwise Tensile; 15 Cycles, Thermal Cycling
	0.910 ksi @Temperature 21.1 °C	Flatwise Tensile; 60 Cycles, Thermal Cycling
	0.950 ksi @Temperature 21.1 °C	Flatwise Tensile; Control; Thermal Cycling
	1.01 ksi @Temperature 204 °C	Flatwise Tensile; Composite Honeycomb Sandwich Performance; ASTM C 297
	1.02 ksi @Temperature 166 °C	Flatwise Tensile; 60 Cycles, Thermal Cycling
	1.03 ksi @Temperature 166 °C	Flatwise Tensile; 15 Cycles, Thermal Cycling
	1.05 ksi @Temperature 21.1 °C	Flatwise Tensile; Composite Honeycomb Sandwich Performance; ASTM C 297
	1.20 ksi @Temperature 166 °C	Flatwise Tensile; Control; Thermal Cycling
	1.24 ksi @Temperature 21.1 °C	Flatwise Tensile; 1.26" Cell; Aluminum Honeycomb Sandwich Performance; ASTM C 297
Elongation at Break	2.39 %	Neat Resin
Tensile Modulus	525 ksi	Neat Resin
Shear Strength	2.50 ksi @Temperature -55.0 °C	Tensile Lap Shear; Aluminum No Primer; ASTM D1002
	2.80 ksi @Temperature 21.1 °C	Tensile Lap Shear; Aluminum No Primer; ASTM D1002
	2.80 ksi @Temperature 21.1 °C	Tensile Lap Shear; Composite; ASTM D1002
	3.45 ksi @Temperature -55.0 °C	Tensile Lap Shear; Aluminum Primer HP655P; ASTM D1002
	3.60 ksi @Temperature 204 °C	Tensile Lap Shear; Aluminum No Primer; ASTM D1002
	3.60 ksi @Temperature 21.1 °C	Tensile Lap Shear; Titanium with HP655P; ASTM D1002
	3.72 ksi @Temperature 21.1 °C	Tensile Lap Shear; Aluminum Primer HP655P; ASTM D1002
	3.90 ksi @Temperature 204 °C	Tensile Lap Shear; Composite; ASTM D1002
	4.00 ksi @Temperature 204 °C	Tensile Lap Shear; Aluminum Primer HP655P; ASTM D1002
	4.00 ksi @Temperature 204 °C	Tensile Lap Shear; Titanium with HP655P; ASTM D1002

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	460 °F	Dry
Glass Transition Temp, Tg	420 °F	Wet
	535 °F	Dry

Descriptive Properties
Areal Weight (psf)	0.04-0.12
Climbing Drum Peel (in-lb/3in)	21	350°F; Wet
	25	70°F; Dry
	31	70°F; Wet
Roll Width (in)	39
Standard Roll (ft2)	540

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