SS-18 / SS-19 Product Description
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SS-18 and SS-19 are fast curing silicone RTV adhesives developed for applications
requiring fast deep section cures as well as excellent adhesion. SS-18 and
SS-19 are both two part, 1:1 mix ratio silicones that when mixed and applied
to the substrate allows handling within minutes. When cured, the elastomer
resists weathering, ozone, moisture, UV and high temperatures. SS-18 and SS-19
both work well in static mix dispensing equipment.
Product Features
SS-18 is gray and self-leveling
SS-19 is black and thixotropic
Fast deep section cure
Neutral cure
Excellent unprimed adhesion to most plastics, metal and glass
Convenient 1:1 mix ratio
Temperature range -65 to 260C
Typical Applications
Adhesive encapsulation
Assembly line adhesive
Form in place gaskets
Chemical cure system:
Tin cured alkoxy condensation
cure system which is not poisonable like
platinum addition cured systems.
Fast Cure Adhesive Silicone RTV's
Typical Properties
UNCURED
Viscosity, cps:
SS-18 15,000
SS-19 20,000
Specific Gravity 1.30
Consistency:
SS-18 liquid
SS-19 thixotropic
Color:
SS-18 gray
SS-19 black
Working time,
mins @ R.T.: 3
Tack Free Time,
mins. @ R.T.: 15
CURED - R.T.
Hardness, Shore A
30 minutes 15
24 hours 35
Cured –24 Hrs. @ R.T.
Tensile Strength, PSI 350
Elongation, % 200
Peel Strength, PPI 40
Lap Shear Strength, PSI 100
Dielectric Strength, V/mil >515
Dielectric Constant 2.8
Dissipation Factor 0.001
Volume Resistivity 2.0 X 1014
Thermal conductivity 0.0005
Coefficient of Thermal Expansion 20 x 10-5
Mixing Instructions
The preferred method of mixing and application of SS-18 and SS-19 is through
a static mixer at a 1:1 mix ratio by volume.
Depth of cure vs time
Very firm deep section cures are formed in 15 minutes. Ultimate cured properties
are found in 24 hours.
Solids
98% solids, contains no solvents
Adhesion
Primerless adhesion to most plastics, metals and typical substrates.
Service temperature
-65 to 260C
Limitations
Do not use product on head gaskets or in a fuel immersion application, and
allow to fully cure before putting assembly into service. Insure enough product
remains between flanges to be effective in an assembly.
Packaging
SS-18 and SS-19 are available in 18 lb. kits, 90 lb. kits and 1000 lb. kits.
This product is also available in customer defined packaging sizes, upon request.
Compatibility
Fully compatible with all materials. Cannot be cure inhibited or contaminated
like addition cure systems.
Handling and safety
For maximum shelf life, keep containers sealed when not in use. Keep out of
the reach of children. Uncured sealant irritates eyes and skin. Refer to MSDS.
Shelf-life
Sealed containers are guaranteed for 1 year from the ship date when stored
in a cool dry area below 70 F.
Limited warranty
All recommendations, statements and technical data herein are based on tests
we believe to be reliable and correct, but accuracy and completeness of said
tests are not guaranteed and are not to be construed as warranty, either expressed
or applied. User shall rely on his own information and tests to determine
suitability of the product for the intended use, and the user assumes all
risk and liability resulting from the use of this product. Manufacturer’s
sole responsibility shall be to replace that portion of product of the manufacturer
proves to be defective. Manufacturer shall not be liable to the buyer or any
third party for injury, loss or damage directly or indirectly resulting from
the use of, or inability to use, the product.
Recommendations or statements other than those contained in a written agreement
signed by an officer of the manufacturer shall not be binding by the manufacturer.
This product has not been tested for, and is therefore not recommended for,
uses for which prolonged contact with mucous membranes, abraded skin, or blood
is intended; or for uses which implantation within the human body is intended.