Permatex Ultra silicones were developed to meet today’s technology changes. Sensor-safe, low odor, noncorrosive. Outstanding oil resistance and joint movement tolerance. Eight times more flexible than cork/composite gaskets; three times more oil resistant than conventional silicones. Temperature range -65°F to 500°F (-54°C to 260°C) intermittent; resists auto and shop fluids and vibration.
This Gasket Maker is a single component, room temperature vulcanizing gasketing compound designed to provide reliable "formed-in-place" gaskets for mechanical assemblies. This material cures on exposure to moisture in the air to form a tough, flexible, silicone rubber gasket. The product resists aging, weathering and thermal cycling without hardening, shrinking or cracking. Designed to perform under the higher load conditions of engines with closely spaced bolt patterns (typically non-US designed), and maintains outstanding oil, water-glycol resistance. OEM Specified.
- High load resistance
- Sensor safe, non-corrosive
- Replaces most cut gaskets
- Can be used as a gasket maker or dressing
- Non-flammable, Non-toxic
- Low odor
- Designed for high torque applications, predominantly Japanese designs requiring a unique RTV gasket
- Outstanding oil resistance
- Temperature range -65 degree F to 650 degree F intermittent; resists auto and shop fluids and vibration
For Automotive: Valve covers, oil pans, transmission pans, intake manifold end seals, timing covers, water pumps, thermostat housings
For Heavy Duty: Cover housing gasket, differential, assembly to rear axle housing, power dividers, axle shaft flanges
- Chemical Type: Oxime silicone rubber
- Appearance: Grey non-sag paste
- Type: High Torque, Rigid
- Size: 3.5 Oz
- Packing Type: Tube
- V O C Content: 2 %
- Odor Scent: Mild
- Drying Time: 24 hr
- Flash Point: 200 deg F
- Applicable Materials: Aluminum, Brass, Iron
- Application Time: 1 hr
- Standards: OEM Specified
- Composition: RTV Silicone, Poly Hydroxy, Calcium Carbonate
- Flammability Rating: 1
- Specific Gravity: 1.47
- Extrusion rate @ 25°C, (grams/min): >250
Typical Curing Performance:
Permatex Ultra Gray Gasket Maker cures on exposure to moisture in the air. The product dries tack free in one hour and fully cures in 24 hours. Cure times will vary with temperature, humidity and gap. Longer cure times will apply to applications in low humidity conditions or colder temperatures.
The product retains effective properties in contact with automotive fluids, such as motor oil, transmission fluids, alcohol and antifreeze solutions. Note: Not recommended for parts in contact with gasoline.
This product is not recommended for use in pure oxygen and/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials.