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Metal adhesives

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Master Bond MB297FLNT Ethyl Cyanoacrylate
Categories: Polymer; Thermoset; Acrylic/Cyanoacrylate Adhesive

Material Notes: Key Features:
  • One component, no mix system
  • Fast setting
  • Rapid fixture time
  • Non-toxic as per ISO 10993-5
Product Description: Master Bond MB297FLNT is a rubber toughened, single component ethyl cyanoacrylate system. Cyanoacrylates are commonly referred to as super glues or instant adhesives. MB297FLNT is a rapid curing, high strength compound used primarily in applications where ISO 10993-5 is specified. MB297FLNT has a low viscosity of 130-150 cps. This adhesive requires no mixing or heating, with minimal fixturing time for curing (typically 20-40 seconds). The most special feature of this system is its toughness. The rubber additive in the formulation mitigates the inherent stiffness of this cyanoacrylate system allowing for better thermal cycling and enhanced vibration resistance. MB297FLNT bonds well to a variety of substrates such as metals, composites, plastics and rubbers, especially in the shear mode. The service temperature range is -60°F to +250°F. MB297FLNT can be used in various applications ranging from field repair to high speed production. It has first rate resistance to EtO and gamma sterilization processes. Although many of the applications for MB297FLNT involve disposable medical devices, it also can be utilized with reusable medical devices depending upon the service conditions and type of sterilization.

Product Advantages:

  • Rapid curing, generally sets up within less than one minute
  • No heating or mixing
  • Contact pressure usually sufficient for fixturing
  • Excellent resistance to EtO and gamma sterilization
  • Passes ISO 10993-5
  • Contains rubber additive for increased toughness

Information provided by Master Bond.

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.

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Physical PropertiesOriginal ValueComments
Specific Gravity 1.05 g/cc
Viscosity 130 - 150 cP
 
Mechanical PropertiesOriginal ValueComments
Hardness, Shore D 70
Tensile Strength 4000 - 5000 psi
Elongation at Break 2.0 - 3.0 %
Tensile Modulus 200000 - 250000 psi
Adhesive Bond Strength 210 psi
@Temperature 21.0 - 25.0 °C
Butyl-Butyl, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 300 psi
@Temperature 21.0 - 25.0 °C
Steel-Natural Rubber after aging 48 hours, 40-50% RH, Tensile Lap Shear, substrate failure
 350 psi
@Temperature 21.0 - 25.0 °C
Steel-Butyl after aging 48 hours, 40-50% RH, Tensile Lap Shear, substrate failure
 420 psi
@Temperature 21.0 - 25.0 °C
Natural Rubber-Natural Rubber, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 440 psi
@Temperature 21.0 - 25.0 °C
SBR-SBR, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 470 psi
@Temperature 21.0 - 25.0 °C
Neoprene-Steel, At 23° ± 2°C after aging 48 hours, 40-50% RH, Tensile Lap Shear Strength
 510 psi
@Temperature 21.0 - 25.0 °C
Nitrile-Nitrile, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 510 psi
@Temperature 21.0 - 25.0 °C
NBR-NBR, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 520 psi
@Temperature 21.0 - 25.0 °C
Neoprene-Neoprene, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 570 psi
@Temperature 21.0 - 25.0 °C
Polystyrene-Polystyrene, Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 850 psi
@Temperature 21.0 - 25.0 °C
Delrin-Delrin, Tensile Lap Shear after aging 48 hours, 40-50% RH
 910 psi
@Temperature 21.0 - 25.0 °C
Nylon-Bakelite, At 23° ± 2°C after aging 48 hours, 40-50% RH, Tensile Lap Shear Strength
 910 psi
@Temperature 21.0 - 25.0 °C
Nylon-Nylon, Tensile Lap Shear after aging 48 hours, 40-50% RH
 970 psi
@Temperature 21.0 - 25.0 °C
NBR-Aluminum, At 23° ± 2°C after aging 48 hours, 40-50% RH, Tensile Lap Shear Strength
 1070 psi
@Temperature 21.0 - 25.0 °C
Chromium-Chromium, Tensile Lap Shear after aging 48 hours, 40-50% RH
 1080 psi
@Temperature 21.0 - 25.0 °C
Aluminum-Aluminum, Tensile Lap Shear after aging 48 hours, 40-50% RH
 1200 psi
@Temperature 21.0 - 25.0 °C
Phenolic-Phenolic, Tensile Lap Shear after aging 48 hours, 40-50% RH
 1250 psi
@Temperature 21.0 - 25.0 °C
ABS-ABS, Tensile Lap Shear, after aging 48 hours, 40-50% RH
 1590 psi
@Temperature 21.0 - 25.0 °C
Aluminum-Stainless Steel, after aging 48 hours, 40-50% RH, Tensile Lap Shear
 2050 psi
@Temperature 21.0 - 25.0 °C
Steel-PVC (rigid) after aging 48 hours, 40-50% RH, Tensile Lap Shear, substrate failure
 2100 psi
@Temperature 21.0 - 25.0 °C
Polyester-Polyester, Tensile Lap Shear after aging 48 hours, 40-50% RH
 2320 psi
@Temperature 21.0 - 25.0 °C
Steel-Aluminum, after aging 48 hours, 40-50% RH, Tensile Lap Shear
 2340 psi
@Temperature 21.0 - 25.0 °C
Copper-Copper, Tensile Lap Shear after aging 48 hours, 40-50% RH
 2360 psi
@Temperature 21.0 - 25.0 °C
Stainless-Stainless, Tensile Lap Shear after aging 48 hours, 40-50% RH
 2370 psi
@Temperature 21.0 - 25.0 °C
Brass-Brass, Tensile Lap Shear after aging 48 hours, 40-50% RH
 2380 psi
@Temperature 21.0 - 25.0 °C
Steel-Steel, Tensile Lap Shear after aging 48 hours, 40-50% RH
 2670 psi
@Temperature 21.0 - 25.0 °C
PVC(rigid)-PVC(rigid), Tensile Lap Shear after aging 48 hours, 40-50% RH, substrate failure
 
Electrical PropertiesOriginal ValueComments
Volume Resistivity >= 1.00e+15 ohm-cm
Dielectric Constant 3.6
@Frequency 1000 Hz
 
Thermal PropertiesOriginal ValueComments
CTE, linear 70.0 - 75.0 µm/m-°C
Maximum Service Temperature, Air 250 °F
Softening Point 290 - 300 °F
Minimum Service Temperature, Air -60.0 °F
 
Processing PropertiesOriginal ValueComments
Cure Time 0.330 - 0.670 minSet up time (substrate dependent)
Shelf Life 6.00 Monthin original, unopened containers
 
Descriptive Properties
AppearanceColorless, transparent liquid
Solubilityacetone
 MEK
 nitromethane

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PMASTM5933 / 306822

Metal adhesives

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