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3M™Scotchcast™Electrical Resin 10 |
Product Description |
3M™Scotchcast™ Electrical Resin 10 has a thixotropic |
(heavy paste) consistency that makes it useful for |
applications requiring a thick coating. a heavy layer, |
applied by spatula, extrusion, buttering or trowelling, cures |
with minimum sagging. The cured resin exhibits good |
physical properties, such as high thermal and mechanical |
shock strength, strong adhesion, resistance to oil and fuel. |
It also exerts little stress on sensitive components. Typical |
applications include filling, patching, caulking, holding, |
spot repairing, lead anchoring and insulating by buttering |
end-turns of motor stator coils. |
• Temperature rated Class B (130??C) |
• General purpose, buttering and holding |
• High thermal and mechanical shock resistance |
• Resistance to oil and fuel |
Test Methods |
1Fed. Std. No. 406, Method 1021 |
2Fed. Std. No. 406, Method 1011 |
3Fed. Std. No. 406, Method 1031 |
4MIL-I-16923E |
53M Test Method |
6Fed. Std. No. 406, Method 4021 |
7Fed. Std. No. 406, Method 4041 |
8Fed. Std. No. 406, Method 4031 |
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3M™Scotchcast™ Electrical Resin 10 Two-Part, Room-Curing, Class B, Semiflexible, Filled, Thixotropic, Epoxy Liquid Resin |
Data Sheet |
Typical Properties |
*Not recommended for specification purposes. Product |
specifications will be provided upon request. |
Property Value*Property Value* |
Color Brown |
Specific Gravity (Cured) 1.55 |
Flammability4 Self-extinguishing |
Compressive Strength1 3400 psi |
(10% Compression) (239 kg/cm2) |
Tensile Strength2 1500 psi |
(105 kg/cm2) |
Elongation2 |
(% @ break) 15 |
Flexural Strength3 1000 psi |
(1/2" x 1/2" Sample) (70 kg/cm2) |
Electric Strength8 (volts/mil) 350 V/mil |
(1/8" [3.175 mm] Sample) (13.8 kv/mm) |
Hardness (Shore D) 70 |
Thermal Conductivity4 8.2 x 10-4 |
(cal · cm/cm2 · sec · °C) |
Coefficient of Linear Thermal Expansion6 8.6 x 10-5 |
(23° C to 113°C) |
(length/unit length/°C) |
Thermal Shock5 |
10 cycles - 55°C to 130°C |
1/4" (6.350 mm) Olyphant Inserts Passes |
Thermal Shock4 Passes |
Boiling Water |
% Weight Gain 7 days 2.2 |
Hardness Change, Shore D -6 |
Mechanical Shock4 7.75 |
(Ball drop, lbs.) (3.5kg) |
Moisture Absorption6 |
%Weight gain, 240 hrs. @96 % R.H. .44 |
Thermal Aging |
1000 hrs. @130°C |
% Weight Loss 2.0 |
Hardness Change, Shore D 15 |
Dielectric Constant6 |
(100 Hz @ 23°C) 5.3 |
Dissipation Factor6 |
(100 Hz @ 23 °C) 0.10 |
Volume Resistivity7 |
(Ohm-cm @ 23°C)1 x 1012 |
Handling Properties |
Mix Ratio (A:B) Wt 1:1 |
Vol (%) 48:52 |
Viscosity A = Paste |
@ 23°C (73°F) B = Paste |
Mixed = Paste |
Density A = 1.656 kg/l (13.82 lbs/gal) |
B = 1.548 kg/l (12.92 lbs/gal) |
Flash Point A = 232°C (450°F) |
B = 238°C (460°F) |
Gel Time 30 min. @ 60°C (140°F) |
Curing Guide 23°C (75°F) 24-48 hrs |
60°C (140°F) 2 hrs |
95°C (203°F) 1 hr |
Handling Properties |
Note: These are typical values and should not be used for |
specification purposes. |
78-8124-5674-3-DPage 2 of 4 |
Usage Information |
Mixing |
Mix the separate parts before removing them from their |
containers. Warming to 60oC (140oF) facilitates this |
process. (Gel time is approximately 30 minutes @ 60oC). |
Thoroughly mix parts A and B in the correct proportions. |
Note: Mechanical means are preferable. Small quantities |
can be easily mixed on a flat plate to ensure thorough |
blending.) Mix until the color is uniform or a homogeneous |
mixture is achieved. |
Deaerating |
Scotchcast Resin 10 is so thick that evacuating entrapped |
air is not suggested. |
Curing |
Where minimum stress and maximum thermal shock |
resistance are required, the ambient temperature cure cycle |
is recommended. If an oven cure is used, time should |
be added to the cure cycle to allow the resin to reach |
the curing temperature. Cure using cycles shown under |
Handling Properties. Where higher temperatures are not |
objectionable and the size of the casting not excessive, the |
resin can be quick-cured in one hour at 95oC (203oF). |
Handling and Safety Precautions |
Read all Health Hazard, precautionary and First Aid |
statements found in the Material Safety Data Sheet |
(MSDS) and/or product label of chemicals prior to |
handling or use. |
TIME IN MINUTES |
TE |
MP |
ER |
AT |
UR |
E ° |
C |
0 30 60 90 100 150 180 21020 |
40 |
60 |
80 |
100 |
120 |
140 |
160 |
10 |
Usage InformationHandling and Safety Precautions |
EXOTHERMIC HEAT RISE |
(1 LB. SAMPLE) |
Storage |
Both parts of this resin system should be stored at |
temperatures between 20 to 30 degrees Celsius, and 30% to |
60% relative humidity. When not in use, containers should |
be kept tightly closed. Storage at conditions outside those |
suggested may compromise the performance of the resin. |
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