Permatex 81160

Permatex 81160 High-Temp Red RTV Silicone Gasket

Instruction Manual

Introduction

The Permatex High-Temp Red RTV Silicone Gasket Maker is engineered for high-temperature applications and heavy-duty use, such as towing. This product is designed to replace most pre-cut gaskets by forming reliable 'formed-in-place' gaskets that resist cracking, shrinking, and migrating due to thermal cycling. It can also coat pre-cut gaskets to enhance their reliability. The formulation resists common automotive and shop fluids and operates effectively within a temperature range of -65°F to 650°F intermittently. This first-generation gasket maker (1970-1980) is OEM specified and offers superior oil resistance, excellent torque retention, and sensor-safe properties, making it suitable for modern engine sensors and materials like aluminum, bi-metal alloys, and high-tech plastics.

Product Features

  • Formulated for high-temperature applications or heavy-duty use.
  • Replaces almost any cut gasket and coats pre-cut gaskets to increase reliability.
  • Creates reliable 'formed-in-place' gaskets that resist cracking, shrinking, and migrating.
  • Effective temperature range of -65°F to 650°F (intermittent).
Permatex 81160 High-Temp Red RTV Silicone Gasket tube

Image: Permatex 81160 High-Temp Red RTV Silicone Gasket tube, 3 oz.

Directions for Use

For optimal results, follow these steps carefully:

  1. Preparation: Ensure all surfaces are clean and dry before application.
  2. Application: Apply a continuous bead of silicone, 1/16" to 1/4" (2 to 6mm) thick, to one surface, surrounding all bolt holes. Assemble parts immediately while the silicone is still wet. Finger tighten until the material begins to squeeze out around the flange.
  3. Curing: Allow 1 hour for the material to set before tightening to torque specifications.
  4. Full Cure: Allow 24 hours for the gasket to fully cure before filling with fluids or returning the assembly to service.
  5. Cleanup: Replace the cap after use to prevent drying.

Note: This product is not recommended for use on head gaskets or parts that will come into contact with gasoline.

Applying Permatex 81160 gasket maker to an engine component

Image: Applying Permatex 81160 High-Temp Red RTV Silicone Gasket to an engine component.

Hand applying Permatex gasket maker to a small part

Image: Detailed view of Permatex gasket maker application.

Safety Information

WARNING: Contains petroleum distillates and amorphous silica. Always read and understand the Safety Data Sheet (SDS) before use.

  • Contact: Avoid contact with eyes and skin. In case of contact, flush thoroughly with water.
  • Inhalation: Use in a well-ventilated area. Avoid breathing vapors.
  • Ingestion: Do not ingest. If swallowed, do not induce vomiting. Seek immediate medical attention.
  • Children: Keep out of the reach of children.
Back of Permatex 81160 tube with instructions and warnings

Image: Back of product packaging showing safety warnings and instructions.

Storage and Disposal

Storage: Keep the container tightly closed and store in a well-ventilated place.

Disposal: Dispose of content and container in accordance with local, state, and federal regulations.

Troubleshooting

No specific troubleshooting steps are provided in the available product information. For issues not covered in the directions, please contact Permatex customer support.

Specifications

AttributeValue
BrandPermatex
Model Number81160
Item Weight3.21 ounces
Product Dimensions1.25 x 3.81 x 8 inches
Temperature Range-65°F to 650°F (intermittent)
Manufacturer Part Number81160
OEM Part Number81160

Warranty and Support

Specific warranty information for the Permatex 81160 High-Temp Red RTV Silicone Gasket is not provided in the available product data. For detailed warranty terms, technical support, or further assistance, please visit the official Permatex website or contact their customer service department directly.

You can find more information and contact details on the Permatex Brand Store.

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