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Elmet Technologies

Lord Adhesives 7420 Urethane Adhesive System
Categories: Polymer; Thermoset; Polyurethane, TS; Thermoset Polyurethane, Adhesive

Material Notes: LORD® 7420 adhesive is a single-component, moisture-cure urethane adhesive offering high peel strengths on difficult-to-bond substrates. It successfully bonds Hytrel®, chlorinated polyethylene (CPE), thermoplastic polyurethane (TPU), Nylon 11 and other thermoplastics to fiber reinforcements, such as polyester and Kevlar®, during construction of high-pressure hose. Hytrel and Kevlar are trademarks of E. I. du Pont de Nemours and Company. After opening, protect adhesive from excessive exposure to moisture by using dry nitrogen as an inert cover each time material is removed. Do not return dispensed material to its original container. The viscosity of this product will increase over time.

Features: blue color allows for easy identification on light colored substrates. does not require explosion-proof equipment. requires no mixing; requires no ovens or other heat source for curing. resists sunlight, weathering, humidity and salt spray. solvent resistant when cured. Painting and most cleaning processes do not affect bond strength.

All information provided by Lord.

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Physical PropertiesMetricEnglishComments
Density 1.20 - 1.22 g/cc0.0433 - 0.0442 lb/in³
Solids Content 55 - 60 %55 - 60 %by weight
Brookfield Viscosity 200 - 700 cP
@Temperature 25.0 °C
200 - 700 cP
@Temperature 77.0 °F
Brookfield LVT, Spindle 2, 30 rpm
 
Mechanical PropertiesMetricEnglishComments
Elongation at Break 250 - 350 %250 - 350 %cured; ASTM D882-A3A, modified)
Peel Strength 7.89 - 8.77 kN/m45.0 - 50.0 pliversus Hytrel 5556; ASTM 1876-72
 
Thermal PropertiesMetricEnglishComments
Flash Point >= 93.0 °C>= 199 °FSeta
 
Descriptive Properties
AppearanceBlue Liquid
SolventsMethylene Chloride

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.

PLORD9124 / 232512

Proto3000 – 3D Engineering Solutions

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