Magnolia Plastics Adhesive Magnobond 55-2
Plastics for the Space Age Since 1957
Magnobond 55-2, Parts A & B
DESCRIPTION
Magnobond 55-2 is a two-component epoxy adhesive which will cure at
room temperature or can be forced to cure rapidly in an elevated
temperature environment. It is more than a general purpose adhesive:
it is a structural adhesive with excellent resistance to solvents,
oils, gasoline, water, salt solutions, and a wide variety of industrial
chemicals, including acids and alkalis. This system will bond metals,
wood, paper products, many plastics, ceramic, concrete, and glass. It
is also an excellent insulator. Magnobond 55-2 does not contain
asbestos.
The equal volume mix ratio (with a wide tolerance) helps to insure a
quality product when exacting metering equipment is unavailable. The
contrasting "colors" of yellow epoxy and neutral hardener produce a
yellow mixture which will indicate complete and proper mixing when all
streak-lines disappear.
The system will remain useable up to one hour, yet cure to handling
strength within 12 hours and develop mechanical properties in one day.
Solvent resistance requires somewhat longer.
Standard colors are gray and yellow. Other colors will be made upon
request.
HANDLING PROPERTIES (Uncured Condition):
Property Part A Part B Mix
------------------- --------- --------- -------------
Viscosity 360,000 150,000 200,000
(cps @ 77°F) @ 5 RPM @ 5 RPM @ 5 RPM
Specific Gravity 1.06 0.95 1.00
Mix Ratio by Volume 1 1 2
*Thixotropic Index 5.4 (a paste)
Pot Life (3-oz. @ 3 hours
77°F)
*Ratio of viscosity at 5 RPM to viscosity at 50 RPM.
CURED PROPERTIES (Using the 77°F Cure):
Room Elevated
Temperature Temperature
Condition Cure (77°F) Cure (150°F)
------------------------ ------------ ------------
Gel 3 hours 0.5 hours
Handleable 12 hours 1.0 hours
Full Strength 24 hours 2.0 hours
Max. Chemical Resistance 7 days 4.0 hours
Flexural Modulus: 3.1 x 105 psi
Shrinkage (25 mil film): 1.0%
Adhesion (al/al): 3500 psi (tensile shear)
Color: Yellow
Water Absorption (24 hrs.): 0.25%
Oil Absorption (24 hrs.): 0.04%
Tensile Strength: 8800 psi
Salt Water Absorption (24 hrs.): 0.25%
Compressive Yield: 1500 psi
Gasoline Absorption (24 hrs.): 0.75%
Flexural Strength: 14,500 psi
Volume Resistivity (77°F): 4.0 x 105 ohm-cm.
Water Resistance, Lap Shear Strength after soaking at 75°F,
ASTM D-1002
Days in Water PSI
------------- ---------
0 3200
30 3680
60 3660
100 4250
730 3600
2300 3450
DANGER FIRST-AID
-------------------------------- -------------------------
May cause severe irritation. Eyes - Immediately flush
Do not get in eyes, on skin eyes with plenty of water
or clothing. for at least 15 minutes.
Do not inhale vapors. Get medical attention.
Wear rubber gloves & aprons. Skin - Wash immediately
Use with adequate ventilation. with soap and water.
Wash thoroughly after handling. Clothing - Remove clothing
For industrial use only. and wash before reuse.
Keep container closed.
Do not reuse this container.
Spec Sheet Dated: 07/27/95
For more information, contact us at:
Sales Division
Magnolia Plastics, Inc.
5547 Peachtree Industrial Boulevard
Chamblee, GA 30341-2296 USA
770-451-2777, Voice
770-451-5376, FAX
800-831-8031, Voice
Email: sales@magnapoxy.com
How To Order:
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Copyright © 1996, Magnolia Plastics, Inc. All Rights Reserved, including
the right of reproduction in whole or in part in any form. The stylized Magnolia Plastics logo is a
regsitered trademark of Magnolia Plastics, Inc.
Contact Magnolia at sales@magnapoxy.com
Updated: September 26, 1996
