Silicone Solutions

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Twinsburg, Ohio 44087
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SS-303 Product Description

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Product Description
SS-303 is a fast curing silicone RTV adhesive rubber developed for applications requiring adhesion to EPDM (ethylene propylene diene monomer rubber) SS-303 is a 1-Part silicone that when applied to the substrate allows handling of the bonded assembly within an hour. When cured, the elastomer resists weathering, ozone, moisture, UV and high temperatures. SS-303 works well in manual and automatic dispensing equipment.

Product Features

Fast R.T. cure
Thixotropic paste
Excellent unprimed adhesion to EPDM rubber
Rapid onset of adhesion
High temperature resistant
Non-corrosive oxime cure
Temperature range -65 to 260C

Typical Applications
EPDM bonding
Form in place gaskets
Adhesive Sealant

Colors: White
(Custom colors available upon request)

EPDM Rubber Silicone RTV Adhesive

Typical Properties

UNCURED
Viscosity, cps 400,000
Specific Gravity 1.28
Consistency : thixotropic paste
Working time, mins. @ R.T.: 8
Tack Free Time, mins. @ R.T.: 20
Application Rate, 90 PSI, g/min. >1000
3mm orifice @ 0.6 MPa

CURED - R.T.   *Download PDF for Electrical Specifications*
Cured -72 Hrs. @ R.T.
Tensile Strength, PSI 275
Elongation, % 450
Durometer, Shore A 35
Peel Strength, PPI 20

Method of Application
Dispense sealant onto part and mate parts. Be sure not to squeeze all of the product out of flange assembly. Allow to cure.

Curing
Cure speed can be accelerated with increased humidity to very rapid cures exhibiting surprisingly fast adhesion.
Typical utilization involves dispensing in open air and ambient humidity to result in a high strength adhesive rubber.

Chemical cure system
Oxime cure system

Packaging
SS-303 EPDM adhesive is available in 10.3 oz. cartridges, 50 lb. pails and 500 lb. drums. This product is also available in customer defined packaging sizes, upon request.

Solids
96% solids

Adhesion
Primerless adhesion to EPDM rubber

Limitations
Do not use product on head gaskets or fuel immersion applications. Allow to fully cure before putting assembly into service. Ensure enough product remains between flanges to be effective in an assembly.

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.

Applicable standards
Conforms to GM 9985675 and GM low volatility requirements.



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.