Permatex 2 VS Ultra Black: Exploring the Differences 

The Permatex 2 is a more affordable glue that is perfect for everyday use in regular household situations. The ultra-black glue on the other hand is stronger and often used in industries and commercial settings.

Here are some key differences between the two:

1. Chemical Resistance: Permatex 2 is designed to resist water, oil, and other automotive fluids, but it may not be suitable for use with some fuels or chemicals. Ultra Black, on the other hand, is formulated to resist a wider range of chemicals, including gasoline, diesel fuel, and transmission fluid.
2. Temperature Resistance: Both products can withstand high temperatures, but Ultra Black has a higher maximum temperature resistance, up to 500°F (260°C), compared to Permatex 2 which has a maximum temperature resistance of 400°F (204°C).
3. Cure Time: Permatex 2 has a faster cure time, usually around 1 hour, while Ultra Black requires a longer cure time of 24 hours to achieve full strength.
4. Color: Permatex 2 is gray in color, while Ultra Black is black, which may be important for aesthetic reasons in certain applications.

Permatex 2 Vs Ultra Black – Difference Table

What is Permatex #2 used for? 

Sealing cut gaskets and stamped components is a breeze with Permatex Form-A-Gasket #2 Sealer, a slow-drying, non-hardening sealant. This sealant is ideal for applications where sealing is prioritized above adhesion. 

It works well on gaskets, wires, O-rings, and a variety of other surfaces. Use it on the dashboard for an application around a car speaker to create a watertight seal. It is also good for making sure your serpentine belt stays in place and won’t come loose over time.

Permatex 80011 Gasket #2 Sealant

When you need to seal water, gas, oil, and condensate gaskets on engines or other machines, Permatex 2™ Gasket #2 Sealant is a simple choice. This multi-purpose silicone sealant has a high molecular weight that creates a strong bond between the gasket and mating surfaces.

Permatex 2™ Gasket #2 Sealant can seal joints in boilers or tanks and it also works great for sealing rubber fuel hose fittings.

Features

• Slow-drying
• Works in temperatures up to -65°F to 400°F
• 6-year shelf life when stored in airtight containers
• Easy to use
• Allows for clean, easy installation and excellent adhesion

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Can be easily removed with no residue or damage to mating surfaces

How long does it take Permatex 2 to dry?

Permatex 2 dries in about 24 hours, not counting the time required for mixing. Ultra-Black’s drying time varies depending on the object being glued. The answer to that question is dependent on what it is being used for and how thick the application of permatex2 is.

What is Permatex form-a-gasket No 2?

The No. 2 Sealant from Permatex®, known as Permatex® Form-A-Gasket®, is a black, thick paste with an alcoholic smell. The solvent evaporates slowly, transforming the setting paste into a film that doesn’t solidify.

It prevents leaks in flexible assemblies by sealing flanges, fittings, and connectors. Other sealants are solvent-based, and loosen at temperatures of 60°F (15°C), creating a leak. The alcohol in Permatex® Form-A-Gasket® evaporates slowly, so it adjusts well to a wide range of applications and temperatures. 

What is Permatex sealant used for?

This transparent RTV silicone adhesive sealer from Permatex may be used inside or out to seal, bind, repair, and fasten a wide variety of materials, including glass, metal, plastics, cloth, vinyl, waterproofing, and vinyl tops. It works equally well on flat or angled surfaces.

It is non-greasy, easy to release the bond after application, cleans up with soap and water, dries quickly, has excellent adhesion properties to most materials, and can be sanded or painted after curing.

Permatex Ultra Black

With its proprietary bonding method, Permatex Ultra Black maintains its great flexibility and oil resistance qualities. Ultra-Black is resistant to grease, shop fluids, and vibration has a minimal odor, and is sensor-safe.

This formula is non-corrosive, has a low odor, and is safe to use around sensors; it may be applied to timing covers, transmission pans, and oil pans, among other places that need a high degree of flexibility and resistance to oil.

What is Permatex Ultra Black used for?

Permatex does have a number of products that can be used for sealing and coating in multiple applications, but the specific product you are inquiring about is Permatex Ultra Black.

This formula is non-corrosive, has a low odor, and is safe to use around sensors; it may be applied to timing covers, transmission pans, and oil pans, among other places that need a high degree of flexibility and resistance to oil.

Permatex 82180 Ultra Black

The innovative adhesive mechanism of Permatex Ultra Black allows for rapid curing while maintaining high flexibility and oil resistance. It is also sensor-safe, has a low odor, and is non-corrosive.

This gasket manufacturer is OEM-required and has the same performance characteristics as OE silicone gaskets. 

Suitable for use in temperatures ranging from -65 degrees Fahrenheit to +500 degrees Fahrenheit; resistant to vibration and automotive fluids. Advantages in efficiency, torque retention, and resistance to high temperatures and sensors are just a few of the features that can be found in gaskets made by this manufacturer. 

Due to the rise in popularity of engine sensors and the introduction of novel component materials like aluminum, bi-metal alloys, and high-tech plastics, there is a growing demand for high-quality RTV silicone gasket manufacturers for both original equipment manufacturer (OEM) production and service. If you need a gasket maker, Permatex provides everything you need.

Features

• Sensor-safe
• Oil resistant
• Durability 
• Removable design 
• Low odor
• Low dielectric properties (low capacitance) 
• Low dielectric temperature (low thermal expansion)
• High operating temperature range -65°F to 500°F Re

Permatex ultra black specifications

• CAN & US Item #: 82180. Item #: 59803.
• Superior pliability and grease resistance.
• 2 An anti-corrosive, sensor-friendly concoction.
• 3 Impervious to fuel and oil.
• Saves time and money by not having to buy pre-cut gaskets that need to be shaped.
• 5Original Equipment Manufacturer-approved and specified for dealership warranty purposes.

Can Permatex Ultra Black be used on gasoline?

No, Permatex Ultra Black should not be applied to gasoline. It is a penetrating lubricant rather than a surface lubricant, and gasoline is an immiscible liquid that does not mix with solvents such as Permatex ultra black.

The reason for this is that the fuel put into the combustion chamber has a higher boiling point than the Permatex Ultra Black, which means that it will not mix with the fuel before it gets there.

Is Permatex Ultra Black an adhesive?

Yes, Permatex Ultra Black is an adhesive. Permatex Ultra Black is an adhesive made to withstand extreme conditions. The silicone base and sealant provide a form of high-performance protection against rust, corrosion, and heat. It’s great for sealing out moisture and other contaminants in the engine compartment or under your car to make it last longer.

It can also be used to seal out dampness from electrical systems with just one application without trapping any harmful vapors or moisture inside your engine bay.

What’s the difference between Permatex Ultra GREY and ultra-black?

Permatex Ultra GREY is a corrosion-inhibiting paste for use on metals, such as electrical contacts and tubing, and ultra-black is a revolutionary paste used in ultrasonic cleaning.

Both are approved for use with Permatex Aerospace Superbuild, Aerospace Electro Paste, Aerospace Gold Plus Paste, Aviation Black Corrosion Inhibitor Paste, or Chemical Guys Hydro 3D.

In both of the PTFE-based products, these colors will be available in both a spray can and an aerosol pump spray can.

For the spray cans, we’ll have Permatex Ultra GREY and ultra-black colors available in 750ml, 1-liter, and 3-liter sizes for $17.95 per can. The aerosol pumps will be in 500ml, 1-liter, and two 2.4-liter sizes for $16.95 each.

Is Permatex Ultra black waterproof?

Yes, Permatex Ultra black waterproof sealant is a tough one-coat waterproofer that stands up to weather, chemicals, and more. Seal carpet, wood, stone, and tile. It doesn’t shrink or crack like other sealants.

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Does Permatex Ultra Black Harden?

You may notice that the liquid in the container will appear black. This is because the liquids are dyed with a black dye to ensure that you can see where it has been applied, and to help protect the product from ultraviolet light throughout its shelf life. The dye has no effect on the performance of this sealant.

Silicone dries in 1 hour, and fully cures in 24 hours, at 70°F – 50% relative humidity. Allow more time in cold weather.

How long does it take Permatex Ultra Black to dry?

Permatex Black Silicone Adhesive Sealant cures on exposure to moisture in the air. The product dries tack free in 1 hour and fully cures in 24 hours. Cure times will vary with temperature, humidity, and gap.

Permatex ultra black cure temperature

Permatex Ultra black cure temperature is recommended as the best solution for automotive and industrial applications. The black cure process is currently not available for any other type of application, but it is also very durable. At 70 degrees Fahrenheit and 50% humidity, silicone dries in an hour and cures completely in 24 hours.

Permatex ultra black cure time

Permatex ultra black has a cure time of one hour. That is important to know because a full cure means the adhesive will stick better. Bonding time is also discussed, with varying results depending on the surfaces and installation temperatures.

For example, installation under cool conditions can take up to 24 hours or more before bonding fully.

Permatex ultra black instructions

Choose the best liquid-tight back-to-back adhesive from Permatex and use it to seal a joint completely, making an airtight seal.

Instructions for applying pressure, applying heat to improve adhesion, and sealing with help of a brush or roller. Abrasive action and a cleaning agent are necessary when reapplying the adhesive.

To seal the bolt holes on one surface, apply a continuous bead of silicone between 1/16 and 1/4 inches (2 and 6 mm) in width. Quickly put everything together while the silicone is still wet.

Turn with your fingers until you feel the material starting to press out from around the flange. After an hour has passed, loosen the fasteners again by 1/4 to 1/2 turn.

Use silicone to seal the gap around electrical boxes to prevent the entry of water and other contaminants.

To seal brick joints, use a clean brush or roller to apply silicone in a continuous bead along the joint while it is opened with a block plane or chisel.

To fill gaps between bricks where separation occurred, use an applicator knife that holds a foam pad soaked with Permatex Ultra Bond adhesive, and apply the adhesive directly into the joint. Smooth over the area with a wallpaper brush or roller. Allow 24 hours of cure time before painting.

Permatex Ultra Black Gasket Maker – How to and Overview

Final Word

So there it is all about Permatex 2 Silicone vs. Ultra-Black.  When applied, additional heat and sanding will improve adhesion. The Ultra Black also works well on steel. Be careful with situations involving water, as the silicone may prevent a proper seal – this is good in some cases but not in others.

Permatex Ultra Black can be used to seal rubber, plastic, and fiberglass without damage. It is available in both a syringe and tube, being more readily available in the syringe. The Ultra Black is by far the most commonly used sealant on the market, however, the Permatex 2 will outperform it.