CHEMICALS
ROOM TEMPERATURE VULCANIZING
One-component elastomer cures to a tough,
rubbery solid when exposed to moisture in the air.
Designed to fulfill industrial and electronic service
sealing and bonding requirements, this sealant has
excellent adhesive strength, high elongation and
outstanding insulation and heat resistance qualities.
Develops primerless adhesion to a variety of
materials, including metal, glass, most wood,
silicone resin, vulcanized silicone rubber, ceramic,
natural and synthetic fibers; most plastics and
painted surfaces. Resists weathering, vibration and
exposure to oil, moisture, ozone, and temperatures
from sub-zero to 400°F. Cures to a tack-free surface
in 10 minutes. Full cure, 24 hours. Ideal for many
sealing, bonding and insulating applications,
including general electrical insulation, potting
exposed electronic components, bonding gaskets
for heating and refrigeration units, formed-in-place
gaskets for gear boxes, compressors, pumps and
outdoor motor covers, pressure sealing of aircraft
cabins and cockpits, caulking sheet metal stacks,
ductwork and equipment housings, and as an
anti-abrasion coating.
As Cured—Electrical
ASTM D 257 Volume Resistivity, ohm-cm – 6 X 1014
ASTM D 149 Dielectric Strength, volts/mil – 635
ASTM D 150 Dielectric Constant, at 60 Hz – 2.8 at 100 Hz – 2.8 at 100 kHz –2.8
ASTM D 150 Dissipation Factor, at 60 Hz – 0.0015 at 100 Hz – 0.0015 at 100
kHz – 0.0015
Part No. 19-159
3 fl. oz. Tube w/Dispensing Nozzle, Clear
Part No. 19-158
GC Industrial RTV Silicone is a one-part high modulus
Sealant/Adhesive and Gasketing material. Remains flexible
from -70°F to +400°F (-57°C to +204°C). Will not crack,
crumble or dry out. Unaffected by ultra-violet, weather,
most chemicals and solvents. Adheres to metal, wood,
glass. fiberglass, ceramics, fabrics and many plastics. Meets
the following specifications: Agriculture Canada; USDA;
FDA regulation No. 21 CFR 175.105; Mil Spec Mil-A46106A-Type1 and US Fed. Specs. TT-S-001543A Class B
and TT-S-00230C Type 2, Class B.
Part No. EL-615 10.2 fl. oz. Caulk Tube, Clear
Description
Silicone Rubber Sealant meets the following requirements:
Part No. 19-155
Silicone Caulk Tube
Silicone Quick Reference Guide
FDA: FDA regulation No. 21 CFR 175.105 when fully cured and washed.
UL: Recognized for service to 302°F (150°C) where elongation is not necessary.
Meets Mil. Spec. Mil-A-46106A Type 1,
Meets Fed. Spec. TT-S-001543A, Class B, TT-S-0230C, Type 2, Class B
Part No. 10-150
Chem
Silicone Rubber Adhesive/Sealant
Non Corrosive
High Temperature
Extreme High Temp
Low Temperature
Extreme low temp
Thermal Conductivity
High Strength
Super High Strength
High Voltage
Paste
Flowable
One Part
Primerless
Translucent
R ed
White
Adhesive
Sealant
Potting
Encapsulating
Elect. Insulation
Form In Place Gasket
Food Grade
Marine
Mil Spec
10-150 19-155 19-157 19-158 19-159 EL-615
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Electronic Grade Silicone
Sealant/Adhesive
One part non-corrosive, neutral cure electronic grade silicone
sealant. Will remain flexible from -70º F to +400º F. (-57º C
to +204º C) An excellent adhesive for many electrical and
electronic applications where corrosion to metals is a problem.
Good dielectric properties, high surface resistivity and resists
electrical tracking. Meets the requirements of Mil-A-46146AType 1; meets the requirements of FDA status, FDA regulation
#177.2600
Part No. 19-155 3 fl. oz. Color: Clear
Part No. 19-158 10.2 fl. oz. Caulk Tube, Color: White
Part No. 19-159 2.8 fl. oz. Cartridge Color: White
Product Data Sheets on
Following pages
For the latest information–www.gcelectronics.com
All quantities are single; BU’s are packages of 10 Unless otherwise noted.
53
CHEMICALS
EPOXY CEMENTS (Cont.)
Thermally Conductive Potting
Epoxy and Adhesive
Electronic Grade Self Leveling Silicone is a one-component, RTV (room temperature vulcanizing) product
that uses new cross-linking mechanism as a cure
method. No acetic or other corrosive by-products
are generated during the curing process. It can
be used in corrosion sensitive electrical or electronic
equipment with no adverse effect and cures at
room temperature.
This potting Epoxy and adhesive is a highly
filled medium viscosity black casting resin
formulated for application requiring a high
degree of thermal conductivity. Mix
ratio 1:1. It contains abrasive aluminum
oxide filler which can introduce wear
considerations. Cure is normally achieved at
room temperature, although an elevated cure
schedule can be used to reach final
properties quickly.
Temperature Range
(after cure):
Dielectric Strength:
Thermal Expansion
Coefficient:
Volume Resistivity:
Part No. 19-160
Part A
-57 ºC to +204 ºC
(-70˚F to + 400˚F)
452 V/mil (173 KV/cm)
9 x 10 4 1/K
0˚C to 100˚C (32˚F to 212˚F)
>2.19 x 10 15 Ohm/cm
10.2 fl. oz. Caulk Tube, Clear
Product Data Sheets on
Following pages
Temperature Range:
Part B
Dielectric Strength:
Thermal Conductivity:
Thermal Expansion
Coefficient:
Volume Resistivity:
Part No. 19-161
Chem
GC Electronic Grade Self Leveling
Potting Silicone Sealant
-40˚C to 150˚C
(40˚F to 300˚F)
430 V/mil
7.34 (Btu * in/ft 2 hr ˚F)
44 (x 10 6 ˚C)
2.14 x 10 12 Ohm/cm
two - 4 oz. Containers
CYANOACRYLATE ADHESIVES & DEBONDERS
“Instant bonding” cyanoacrylate adhesives cure in seconds, do not depend on evaporation of solvents and require no clamping. They
are colorless and moisture resistant. They are ideal for bonding metals, plastics, rubber, glass and ceramics to each other or to dissimilar
materials. Bonding strength up to several thousand psi is possible making them among the strongest adhesives available. These adhesives
are economical, as only a drop is required. The best type should be determined by experimentation. Use them to repair broken plastic
cabinets and other plastic items, attaching nameplates and rubber feet to panels and chassis, cementing broken ceramic glass and rubber
items, repairing jewelry, etc. Porous surfaces may be bonded with Gelweld No. 19-0117. The average setting time is between 10 and 100
seconds, after which the cemented articles can be handled. These adhesives may even be used to bond surfaces which are normally difficult
to cement, such as teflon, polyethylene, vinyl, silicone rubber and glass.
GR-R-RIP
World famous Ethyl Cyanoacrylate rapid
bonding adhesive in gravity fed bottle.
Bond strength not affected by temperatures
from -60°C to 85°C (-76°F to 185°F).
Part No. 19-115
0.106 fl. oz. Bottle
GC Super Glue Regular Formula
Ethyl Cyanoacrylate Adhesive
Medium viscosity formula for efficient wicking
action, faster curing time. Excellent for bonding
any combination of plastic, rubber or metal
parts. This grade is ideal for small or fine work on
non-porous, smooth surfaces. It fills gaps of .003.005”. Highly resistant to acid, alkali, alkali
water, solvents and fungus. Non-toxic.
Meets Mil. spec. MIL-A-46050B Type 1 Class 2.
Part No. 10-120
For the latest information–www.gcelectronics.com
All quantities are single; BU’s are packages of 10 Unless otherwise noted.
0.075 fl. oz. Tube
51
ELECTRONICS
PRODUCT SPECIFICATIONS SHEET
CAT NO.
PRODUCT NAME
19-158
19-159
GC Electronic Grade Silicone Sealant Adhesive – White
DESCRIPTION:
GC Electronic Grade Silicone Sealant/Adhesive is a one-part, moisture-curing RTV (room temperature
vulcanizing) silicone sealant/adhesive that is non-slump and cures to form a tough, permanently flexible
rubber.
The non-corrosive curing system of these products makes it ideally suited for protecting, sealing and
insulating corrosion-sensitive electronic and electrical materials such as copper, brass, silver, etc.
It has been specifically formulated for use in electrical/electronic production and assembly because it
• has good dielectric properties
• has high surface resistivity
• resists electrical tracking
• repels water to protect electrical properties
These products are a neutral-cure silicone that emits no objectionable odors during cure and is ideally
suited for use in confined areas. However, adequate ventilation should be provided when they are used in
large-scale production.
These products are 100% silicone and have excellent resistance to:
• ozone
• UV
• airborne chemicals
• temperature changes from -57°C to +204°C (-70°F to +400°F)
TYPICAL USES:
19-158 and 19-159 are excellent sealants/adhesives for many electrical and electronic applications where
corrosion to metals, particularly copper, brass, silver, etc., is a problem. Such applications include:
• lead-wire entries
• conduit terminal boxes
• component mounting
• electrical connections
• conduit ends
• splices
• cover plates
• coaxial cable connectors
• printed circuit boards
• conductor entry holes
SURFACE PREPARATION;
All surfaces should be clean and dry. It is recommended that bonding surfaces be solvent wiped with oilfree solvents such as xylol, toluol naphtha or non-flammable chlorinated solvents. Do not wipe with oilbased solvents such as Varsol. Allow surface to dry thoroughly before applying sealants.
DIRECTIONS:
19-158 and 19-159 are ready to use and require no mixing or additives. The cure mechanism begins as
soon as the sealant comes in contact with the air. At conditions of 25°C (77°F) and 50% relative humidity,
the sealant will skin in 15 minutes and fully cure within 48 hours (1/8” bead).
Higher humidity accelerates cure. Tooling should be done before skinning takes place.
In applications where partial total confinement of sealant is prevalent, the time required for proper cure is
lengthened by the degree of confinement.
PRIMING:
Priming of these products is normally not required for application to most substrates.
Unprimed adhesion can be readily tested by applying a small trial bead and allowing 7 days for maximum
adhesion to occur.
COLORS:
These products are available in white.
MILITARY SPECIFICATIONS:
19-158 and 19-159 meet the requirements of MIL-A-46146A Type 1.
FDA STATUS:
19-158 and 19-159 are permitted under regulations of the Food and Drug Administration where incidental
food contact might be involved. FDA Regulation number is 177.2600.
TYPICAL PROPERTIES:
CHARACTERISTIC
Shore A Hardness
Tensile @ Break
Elongation @ Break
Modulus @ 100% Elongation
Tear Strength
Adhesion Strength (Peel)
Glass
Aluminum (Primed)
Mortar (Primed)
Sag, or Slump
Shrinkage (Weight Loss)
Extrusion Rate
TEST METHOD
RESULTS
ASTM D2240
ASTM D412
ASTM D412
ASTM D412
ASTM 624 (Die B)
TT-S-001543, 3.5.9
30 ± 2
250 ± 25 psi
400 ± 25%
90 ± 10 psi
30 ± 10 ppi
TT-S-001543, 3.5.2
TT-S-001543, 3.5.5
1/8” orifice @ 50 psi
10 ± 2 ppi
8 ± 2 ppi
12 ± 2 ppi
Nil
2.19 x 1015 ohm/cm
0.00106 at 10 kHz
0.00022 at 100 Hz
71 at 100 Hz
2.71 at 10 kHz
SAFETY PRECAUTIONS:
19-160 is a neutral cure system, no acetic acid is released during cure.
STORAGE:
19-160 should be stored in original unopened container at or below 32°C (90°F).
SHELF LIFE, CLOSED CONTAINERS
12 months
ELECTRONICS
PRODUCT SPECIFICATIONS SHEET
CAT NO.
PRODUCT NAME
19-161
GC Thermal Conductive Potting Epoxy and Adhesive
8 oz. Kit (2 – 4 oz. Containers)
Discontinued
DESCRIPTION:
GC Thermal Conductive Potting Epoxy and Adhesive is a highly filled, medium viscosity black casting
resin designed for applications requiring a high degree of thermal conductivity, flexibility and a low CTE.
It was especially formulated to a 1:1 mix ratio for use in MMD equipment. It contains abrasive aluminum
oxide filler which can introduce wear considerations for wetted components. Cure is normally achieved at
room temperature although an elevated cure schedule can be used to reach final properties quickly. This
product was designed to be cured in less than 2 hours at 65C for ease of processing and also to reduce
viscosity.
It was especially formulated to a 1A:1B volume mix ratio for use in side-by-side dispensing cartridges and
meter/mix and dispense equipment. Times and temperatures from 3 hours at 65C to 30 minutes at 100C
are typical for small castings (less than 50 grams).
TYPICAL PROPERTIES:
Color
Viscosity
Specific Gravity
Black
Part A
44,000 cPs (Low Shear)
35,000 cPs (High Shear)
Part B
34,000 cPs (Low Shear)
25,500 cPs (High Shear)
Mixed
39,000 cPs (Low Shear)
30,000 cPs (High Shear)
Part A
Part B
Mixed
1.92
1.98
1.95
Pot Life
120 minutes
Mass
200 grams
CURED PHYSICAL PROPERTIES:
Hardness
75 Shore-D
Lap Shear
1500 psi
2014 REV. A
19-161
Page 1 of 3
Tensile Strength (Yield)
450 psi
Elongation @ Break
15%
Compressive
PSI
Yield Strength
1,500
Ultimate Strength
7,500
Modulus
24,000
Coefficient of Thermal Expansion
45*ppm/C (below Tg)
Thermal Conductivity
(Btu*in/ft2 hrF)
7.2
Temperature Range **
-40 to 150C
Onset Temperature
55C
Exothermic Energy
63.3 J/g
Glass Transition Temperature
26C
Discontinued
ELECTRICAL PROPERTIES:
Dielectric Constant
(25C, 100 Hz)
5.0*
Dielectric Strength
400 v/mil*
Volume Resistivity
7.6 x 1013 Ohm-Cm*
MIX RATIO: (Part A to B)
By Weight
By Volume
1 to 1
1 to 1
CURE SCHEDULE:
24 – 72 hours at 25C
Or 3 hours @ 65C
30 minutes @ 100C
SHELF LIFE, CLOSED CONTAINERS:
12 months
INSTRUCTIONS:
1)
Bring both components to room temperature and stir individually before use. Mix equal parts A
and B thoroughly.
2)
Weigh and mix parts A and B accurately and thoroughly, scraping sides of container often. Do not
pour from mixing container; transfer to a new container as residual unmixed material may cause a
tacky spot on the surface of casting.
2014 REV. A
19-161
Page 2 of 3
Discontinued
3)
Allow product to cure undisturbed until it is fully gelled or tack-free to the touch.
4)
Clean up uncured resin with a suitable organic solvent such as MEK, acetone or other organic
solvent.
*Asterisk denotes values considered typical to associated resin systems or extrapolated from other test
results.
**General use guideline, based on weight loss at elevated temperature.
Notes: Values presented above are considered to be typical properties, not to be used for specification
purposes. Many epoxy resin systems are prone to crystallization as epoxy resin is a super-cooled fluid. This
condition may give the product a gritty or grainy appearance (or hazy in clear products). Products in this
state will not usually cure to normal and expected properties. In extreme cases it may appear solid and
cured. Fluctuating temperatures (within 5-50C) may aggravate this phenomena. Heating the individual
component to 50 to 60C while stirring can usually restore the product to original state. Storage at 25+/10C is optimum for most products.
GC Electronics makes no express or implied warranties or merchantability, fitness or otherwise with respect to its products. In
addition, while the information contained herein is believed to be reliable, no warranty is expressed or implied regarding the accuracy
of the data or the results to be obtained from the use thereof. All recommendations or suggestions for use are made without guarantee
inasmuch as conditions of use are beyond our control. The properties given are typical values and are not intended for use in
preparing specifications. Users should make their own test to determine the suitability of this product for their own purposes.
2014 REV. A
19-161
Page 3 of 3