Master Bond EP29LPSPND-3 Two component epoxy compound

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Master Bond EP29LPSPND-3 Two component epoxy compound
Categories:	Polymer; Thermoset; Epoxy
Material Notes:	Key Features: Paste consistency Exceptionally long working life Electrically and thermally insulative Can withstand cryogenic shock Product Description: Master Bond EP29LPSPND-3 is a two component, high performance epoxy system for use in cryogenic applications. This epoxy has a 100 to 65 mix ratio by weight along with a very long open time exceeding 5 hours. It is specially formulated to have a paste consistency with minimal flow upon curing. Although this is a paste, it is very easy to mix A and B together. There are two main curing schedule options, both entail 12 -24 hours at room temperature followed by either 12-18 hours at 130-150°F, or 5-10 hours at 150-165°F. This epoxy contains no solvents or diluents and has very low shrinkage upon cure. EP29LPSPND-3 bonds well to a wide variety of substrates including glass, ceramics, metals, and many different kinds of plastics. It conducts neither heat nor electricity. The service temperature range is from 4K to 250°F. One particularly outstanding feature is its ability to withstand rapid excursions to cryogenic temperatures. This epoxy resists water, oils, fuels, cleaning agents, and mild acids and bases. The color of Part A is gray, B is amber. EP29LPSPND-3 is a viable candidate when a paste consistency, cryogenically serviceable epoxy adhesive, sealant or coating is required. Product Advantages: Paste consistency Easy to mix and apply Electrical and thermal insulator Withstands rapid drop downs in temperature 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. 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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Mechanical Properties	Metric	English	Comments

Hardness, Shore D	70 - 80	70 - 80
Tensile Strength	41.4 - 55.2 MPa	6000 - 8000 psi
Tensile Modulus	2.07 - 2.41 GPa	300 - 350 ksi
Adhesive Bond Strength	8.27 - 9.65 MPa	1200 - 1400 psi	Tensile lap shear, Al to Al

Electrical Properties	Metric	English	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	>= 1.00e+15 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	45.0 - 50.0 µm/m-°C	25.0 - 27.8 µin/in-°F
Maximum Service Temperature, Air	121 °C	250 °F
Minimum Service Temperature, Air	-269 °C	-452 °F

Processing Properties	Metric	English	Comments
Cure Time	300 - 600 min @Temperature 65.6 - 73.9 °C	5.00 - 10.0 hour @Temperature 150 - 165 °F	Gel at 75°F for 12-24 hours before heating
	720 - 1080 min @Temperature 54.4 - 65.6 °C	12.0 - 18.0 hour @Temperature 130 - 150 °F	Gel at 75°F for 12-24 hours before heating
Working Life	>= 5.00 min	>= 5.00 min	after mixing, 100 gram batch
Shelf Life	6.00 Month	6.00 Month	in original unopened containers

Descriptive Properties
Mixing ratio	100:65 by weight		Part A to B
Viscosity	paste		Part A
	paste		Part B

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.

PMASTM5918 / 306807

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