Master Bond MB306 Low Viscosity Methyl Cyanoacrylate

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Master Bond MB306 Low Viscosity Methyl Cyanoacrylate
Categories:	Polymer; Adhesive; Thermoset; Acrylic/Cyanoacrylate Adhesive
Material Notes:	Key Features: One component, non-mix system Excellent adhesion, especially to metals Fast setting with rapid fixture time Industrial grade Product Description: Master Bond MB306 is a single component methyl cyanoacrylate adhesive. MB306 is a low viscosity, rapid setting cyanoacrylate system. Similar to other types of “super glue”, MB306 cures very rapidly with the rate of cure dependent upon the humidity—the higher it is, the faster the cure. Because curing is normally fast, minimal contact pressure is usually sufficient for bonding. It must be emphasized that this high strength system requires no heating or mixing. It typically sets up within 10-30 seconds depending upon the humidity and the substrates. The bond strength is exceptionally high in the shear mode. MB306 bonds well to a variety of substrates, such as plastics and rubbers, but it is most useful for bonding metals. It has reasonably good chemical resistance, especially to cleaning agents. (See chemical resistance table.) The service temperature range for this system is -60°F to +200°F. MB306 is a versatile, high performance, industrial grade methyl cyanoacrylate that can be used in many different applications in the aerospace, electronic, OEM, electrical, optical and R&D industries. Product Advantages: Rapid curing at room temperature; usually sets up within 30 seconds No heating or mixing Contact pressure usually sufficient for fixturing Bonds well to a wide variety of substrates, especially metals Low viscosity Information provided by Master Bond Inc.
Vendors:	Master Bond is a leading manufacturer of adhesives, sealants, coatings and potting compounds. Master Bond’s vast product line consists of over 3,000 epoxy, polyurethane, silicone, cyanoacrylate and latex adhesives that vary in viscosity, cure speed, strength, chemical resistance, electrical properties, etc. Our custom adhesives offer design flexibility and provide excellent bonding performance. Visit www.masterbond.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Metric	English	Comments

Specific Gravity	1.05 g/cc	1.05 g/cc
Viscosity	75 - 95 cP	75 - 95 cP

Mechanical Properties	Metric	English	Comments
Hardness, Shore D	70	70
Tensile Strength	41.4 MPa	6000 psi
Elongation at Break	2.0 - 3.0 %	2.0 - 3.0 %
Tensile Modulus	1.38 - 1.72 GPa	200 - 250 ksi
Adhesive Bond Strength	2.00 MPa	290 psi	Butyl-Butyl, Tensile lap; Substrate Failure
	2.34 MPa	340 psi	Natural Rubber-Steel, Tensile lap; Substrate Failure
	3.10 MPa	450 psi	Natural Rubber-Natural Rubber, Tensile lap; Substrate Failure
	3.17 MPa	460 psi	SBR-SBR, Tensile lap; Substrate Failure
	3.65 MPa	530 psi	Neoprene-Steel, Tensile lap
	3.72 MPa	540 psi	Chloloroprene-Chloloroprene, Tensile lap; Substrate Failure
	3.79 MPa	550 psi	Nitrile-Nitrile, Tensile lap; Substrate Failure
	3.86 MPa	560 psi	NBR-NBR, Tensile lap; Substrate Failure
	3.86 MPa	560 psi	Neoprene-Neoprene, Tensile lap; Substrate Failure
	4.14 MPa	600 psi	Polystyrene-Polystyrene, Tensile lap; Substrate Failure
	4.48 MPa	650 psi	Delrin-Delrin, Tensile lap
	4.76 MPa	690 psi	Nylon-Nylon, Tensile lap
	5.38 MPa	780 psi	Bakelite-Nylon, Tensile lap
	6.83 MPa	990 psi	NBR-Aluminum, Tensile lap
	8.27 MPa	1200 psi	ABS-ABS, Tensile lap; Substrate Failure
	9.65 MPa	1400 psi	Phenolic-Phenolic, Tensile lap; Substrate Failure
	10.3 MPa	1490 psi	Aluminum-Steel, Tensile lap
	10.3 MPa	1500 psi	Copper-Nylon, Tensile lap; Substrate Failure
	12.7 MPa	1840 psi	Chromium-Chromium, Tensile lap
	13.7 MPa	1980 psi	Aluminum-Aluminum, Tensile lap
	14.1 MPa	2050 psi	Polyester-Polyester, Tensile lap
	14.4 MPa	2090 psi	Aluminum-Stainless Steel, Tensile lap
	15.1 MPa	2190 psi	Stainless-Steel Steel, Tensile lap
	15.2 MPa	2200 psi	PVC (rigid)-Steel, Tensile lap; Substrate Failure
	19.3 MPa	2800 psi	PVC(rigid)-PVC(rigid), Tensile lap; Substrate Failure
	20.4 MPa	2960 psi	Brass-Brass, Tensile lap
	20.5 MPa	2980 psi	Brass-Steel, Tensile lap
	21.4 MPa	3100 psi	Stainless-Stainless, Tensile lap
	22.1 MPa	3200 psi	Steel-Steel, Tensile lap
	23.4 MPa	3400 psi	Copper-Copper, Tensile lap

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm
Dielectric Constant	3.6 @Frequency 1000 Hz	3.6 @Frequency 1000 Hz

Thermal Properties	Metric	English	Comments
CTE, linear	70.0 - 75.0 µm/m-°C	38.9 - 41.7 µin/in-°F
Maximum Service Temperature, Air	121 °C	250 °F
Softening Point	149 - 154 °C	300 - 310 °F
Minimum Service Temperature, Air	-51.1 °C	-60.0 °F

Processing Properties	Metric	English	Comments
Cure Time	0.167 - 0.500 min	0.00278 - 0.00833 hour	set up time, substrate dependent
Shelf Life	6.00 Month @Temperature 4.44 - 10.0 °C	6.00 Month @Temperature 40.0 - 50.0 °F	in original, unopened containers

Descriptive Properties
Color	Colorless, transparent liquid

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PMASTM927 / 185520

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