Ultrapro High Temp Silicone Gasket - 3M Automotive

Specifications

The 3M Automotive Ultrapro High Temp Silicone Gasket, model number 8672 8672, is a premium form-in-place (FIP) Room Temperature Vulcanizing (RTV) silicone gasket adhesive/sealant. It comes in a 3 fl. oz. (88ml) tube and is black in color, with a paste consistency. This silicone gasket maintains excellent thermal stability, designed to endure continuous temperatures from -45°F to 600°F (-43°C to 315°C), with intermittent spikes up to 600°F (301°C). It exhibits a tensile strength of 325 psi +/- 25 and a Shore A hardness of 35-40. The product is oxygen sensor safe, non-corrosive, and features a neutral cure with low odor. It resists coolants, oils, water, and ethylene glycol. A skin-over time of approximately 15 minutes and a full cure of 24 hours are achieved for a 1/4-inch bead at 70°F and 50% relative humidity.

Key Features

• Form-in-Place Gasketing: Formulates custom gaskets directly on the application surface, eliminating the need for pre-cut gaskets.
• High Temperature Resistance: Withstands extreme heat conditions in engine and transmission components without compromising seal integrity.
• Rapid Curing: Achieves a quick skin-over time and a full cure within 24 hours, facilitating faster assembly and return to service.
• Chemical and Fluid Resistance: Resists degradation from common automotive fluids such as oils, coolants, water, and ethylene glycol, ensuring a long-lasting seal.
• Flexibility and Durability: Maintains elasticity and sealing strength over time, even under challenging conditions and temperature fluctuations.
• Oxygen Sensor Safe & Non-Corrosive: Formulated to be safe for use with modern engine components and electronics, preventing damage and maintaining performance.
• Low Odor: Features a neutral cure chemistry, resulting in minimal odor during application and curing.
• Versatile Application: Functions effectively as a standalone gasket alternative or as a dressing to enhance the seal of pre-cut gaskets.

Applications

The 3M Ultrapro High Temp Silicone Gasket is extensively used in various automotive and industrial sealing applications. It is ideal for creating durable, leak-proof seals on automobile engines and transmissions. Specific applications include:

• Valve covers.
• Oil and transmission pans.
• Intake manifolds.
• Water pumps.
• Timing chain covers.
• Thermostat housings.
• Differentials and axle housings.

Beyond automotive use, it can also be applied to industrial equipment, stationary engines, motorcycles, lawn maintenance equipment, boats, motor homes, jet skis, snowmobiles, and other recreational sport utility vehicles requiring high-temperature sealing. This product serves both as a form-in-place gasket and as a sealant to enhance the effectiveness of existing pre-cut gaskets.

Benefits

Using the 3M Ultrapro High Temp Silicone Gasket delivers several tangible advantages for sealing applications:

• Enhanced Reliability: Creates a tight, durable seal that prevents leaks of fluids and gases, crucial for optimal engine and component performance.
• Reduced Maintenance: Its resistance to extreme temperatures, chemicals, and aging ensures a long-lasting seal, minimizing the need for frequent repairs and replacements.
• Cost-Effectiveness: Provides a flexible and durable alternative to rigid or custom-made gaskets, potentially reducing material and inventory costs.
• Improved Productivity: The rapid curing formula allows for quicker assembly times, enabling engines and machinery to return to service faster.
• Versatile Solution: Functions across a wide array of automotive and non-automotive applications, making it a comprehensive sealing solution.
• Engine Protection: Its oxygen sensor safe and non-corrosive properties protect modern engine components from potential damage caused by reactive sealants.
• Operational Integrity: Maintains flexibility and sealing performance even with significant temperature fluctuations, ensuring consistent operation in demanding environments.