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   »  Coating Protection

   »  Potting / Encapsulation

   »  Sealants

Adhesion & Bonding
Die Attachment
Snap / Fast Cure

Adhesive Details

** The actual package type may not be the same as shown in the photo **

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50 mL Cartridge, Price: $33.00
200 mL Bottle, Price: $129.00
1000 mL Bottle, Price: $516.00
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USG803 is a two-part transparent coating and potting gel. It is a flowable, addition-curing, silicone that cures at elevated temperature to a very firm rubbery gel with excellent adhesion to various plastics and metals. It is non-corrosive and self-priming adhesion, and can be automated to dispense from pails or hand extruded from cartridge.

Special Features and Benefits
• Very soft for stress compliance
• Excellent dielectric properties
• Mechanical shock and vibration damping
• Low bleeding, low volatile
• Broad range of temperature stability

Typical Applications
• Coat or pot parts and cavities
• Seal lids, covers, housings, connectors
• Automotive electronics
• Semiconductor and Telecommunications
• Vibration dampening
• Thermal stress coupling

For the non-sag (thixotropic) version of this coating gel, please select the USGlue’ product USG803.

Click here to view the Technical Datasheet (TDS) of this product in details (PDF File) »

Processing Instruction

Important! USG803 is platinum cure system. Please keep applied surface / housing clean and avoid using this material on any place that contains sulfur, amine, phosphorous, organo-metals, acid, etc. because these contaminants could inhibit the cure the material.

We recommend running preliminary tests to optimize conditions for the particular application. Comprehensive processing instructions can be obtained by contacting directly to

USG803 has a shelf life of at least 12 months when stored at < 24°C in the originally sealed container. Storage beyond the date specified does not necessarily mean that the product is no longer usable. In this case however, the properties required for the intended use must be checked for quality assurance reasons.

Safety information
USG803 silicone contains neither toxic nor corrosive substances that might require special handling precautions. General hygiene regulations should be observed. Comprehensive instructions are given in the corresponding Material Safety Data Sheets. They are available on request from

The data presented in this leaflet are in accordance with the present state of our knowledge, but do not absolve the user from carefully checking all supplies immediately on receipt. We reserve the right to alter product constants within the scope of technical progress or new developments. The recommendations made in this leaflet should be checked by preliminary trials because of conditions during processing over which we have no control, especially where other companies’ raw materials are also being used. The recommendations do not absolve the user from the obligation of investigating the possibility of infringement of third parties’ rights and, if necessary, clarifying the position. Recommendations for use do not constitute a warranty, either express or implied, of the fitness or suitability of the products for a particular purpose. For technical, quality, or product safety questions, please contact directly to

Technical Support


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