Ford TA-357 High-Performance Engine RTV Silicone Sealant 5 oz — Heat & Oil Resistant

Ford Genuine TA-357 is a high-performance RTV silicone sealant formulated to create durable, oil- and coolant-resistant gaskets and seams for automotive engines — available in a convenient 5 oz tube.

This RTV silicone comes from Ford's Motorcraft line and is engineered for automotive assembly and repair tasks that require dependable sealing under heat, vibration, and exposure to fluids. The TA-357 formula offers flexibility after cure, resists common engine fluids, and bonds well to metal, glass, and many plastics, making it a practical choice for professional technicians and home mechanics.

What makes this sealant suitable for engine applications?

The TA-357 is designed with the demands of engine bays in mind: it cures to form a flexible, oil-tolerant gasket that stands up to high temperatures and mechanical stress. It adheres to a variety of substrates commonly found in engines, reducing the chance of leaks at mating surfaces.

• Heat-resistant formula for sustained engine temperatures
• Oil and coolant resistance to prevent degradation
• Flexible cured bead to handle vibration and thermal expansion
• Good adhesion to metal, glass, and many plastics

How should I prepare and apply Ford TA-357 for best results?

Surface preparation and correct application are key to achieving a long-lasting seal. Clean and dry mating surfaces, remove old gasket material, and apply an even bead where specified by the vehicle manual.

• Clean surfaces with a solvent and allow to dry fully
• Apply an even continuous bead from the 5 oz tube; do not over-apply
• Assemble parts within manufacturer-recommended time before skin-over
• Allow curing time per instructions before exposing to fluids or high heat

Can Ford TA-357 be used on other repairs besides engine gaskets?

Yes — while optimized for engine sealing, this RTV silicone is versatile and useful for many automotive sealing needs. It can be employed where a flexible, durable seal is needed and where components see exposure to oil, coolant, or heat.

• Sealing oil pans, valve covers, and thermostat housings
• Repairing small leaks on housings or threaded fittings
• Bonding and sealing non-structural trim or accessories
• Not intended for continuous water immersion or structural bonding

What safety and performance notes should I follow?

Follow standard safety practices: use in a well-ventilated area, avoid skin and eye contact, and consult the product’s technical data for cure times and temperature limits. Test compatibility on non-critical surfaces if unsure.

• Work in ventilated spaces to avoid inhaling fumes
• Wear gloves and eye protection during application
• Check cure and service temperature ranges before use
• Store tube capped and in a cool, dry place to maintain shelf life

Who this is for: Ford Genuine TA-357 in a 5 oz tube is aimed at automotive professionals, independent mechanics, and DIY enthusiasts who need a trusted, vehicle-grade RTV silicone for engine sealing and related automotive repairs. If you want a product specified for Ford vehicles and backed by Motorcraft engineering, this sealant is a practical choice for maintenance and repair tasks that require a resilient, fluid-resistant gasket solution.