Permatex The Right Stuff gasket maker 2-Pack (2×5 oz) with caulking gun — Instant-set, high-temp sealant

Permatex The Right Stuff gasket maker creates an instant, formed-in-place elastomeric gasket so you can reassemble equipment immediately without waiting for cure time.

Designed for professional shops, fleet maintenance, and knowledgeable DIYers, Permatex 99070 The Right Stuff comes as two 5 oz. tubes plus a compatible caulking gun to speed gasket repairs. This high-performance sealant replaces pre-cut gaskets with a blowout-resistant, durable rubber seal that resists oil, coolant, ATF and other common shop fluids. Used on OEM production lines, it withstands continuous temperatures from -75°F to 450°F and intermittent peaks to 500°F, making it suitable for a wide range of automotive, marine, and heavy-duty sealing tasks.

How quickly can I reassemble parts after applying this gasket maker?

The Right Stuff sets up instantly as a formed-in-place elastomeric gasket, allowing you to reassemble right away without waiting for a lengthy cure. It provides immediate handling strength and resists blowout so flanged assemblies can be torqued and returned to service.

• Instant-set formula: no wait to reassemble
• Provides immediate handling strength for fast repairs
• Compatible with common engine fluids for reliable seals

What surfaces and components is this sealant best for?

The product is formulated for automotive, heavy-duty and marine applications where formed-in-place gaskets are preferred. Typical uses include valve covers, oil pans, thermostat housings, water pumps, gearboxes and many other flanged joints that require a long-lasting elastomeric seal.

• Valve covers, oil pans and gearbox covers
• Pumps, thermostat housings and water pumps
• Accepted for OEM production and service parts programs

Will The Right Stuff hold up to heat, vibration, and shop fluids?

Yes — it’s formulated to resist thermal cycling and mechanical vibration while maintaining seal integrity. The elastomeric gasket tolerates a wide continuous temperature range and is resistant to oil, coolant, ATF and common shop fluids, helping prevent leaks caused by expansion and movement.

• Continuous use -75°F to 450°F; intermittent to 500°F
• Resists ATF, oil, coolant and typical shop chemicals
• Blowout resistant to protect against vibration-related seepage

How is this 2-pack with caulking gun convenient for shops and DIYers?

The kit includes two 5 oz. tubes and a ready-to-use caulking gun so you can tackle multiple jobs without sourcing additional tools. Having an extra tube on hand reduces downtime between tasks and the included gun ensures consistent bead application for cleaner, more reliable gaskets.

• Two 5 oz. tubes for back-to-back or future repairs
• Included caulking gun for controlled, consistent application
• Saves time compared with cutting and fitting pre-formed gaskets

Who is this for: Permatex 99070 The Right Stuff 5 oz. 2-pack with caulking gun is ideal for automotive technicians, fleet and heavy-equipment mechanics, marine service pros and experienced home mechanics who need a fast, durable, OEM-grade formed-in-place gasket. If you want to eliminate pre-cut gaskets, reduce downtime, and create blowout-resistant seals that tolerate heat, vibration and common fluids, this kit delivers a practical, production-proven solution.