Permatex Aviation Form-A-Gasket No. 3 Sealant in brown, ideal for automotive and aviation sealing.
Permatex Aviation Form-A-Gasket No. 3 Sealant in brown, ideal for automotive and aviation sealing.

Permatex Aviation Form-A-Gasket No. 3 Sealant, 16 oz, Brown | Automotive & Aviation Sealant

Permatex Aviation Form-A-Gasket No. 3 Sealant is a slow-drying, non-hardening sealant designed for both aviation and automotive...
Vendor: Permatex
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Permatex Aviation Form-A-Gasket No. 3 Sealant in brown, ideal for automotive and aviation sealing.

Permatex Aviation Form-A-Gasket No. 3 Sealant, 16 oz, Brown | Automotive & Aviation Sealant

£34.45
Permatex Aviation Form-A-Gasket No. 3 Sealant in brown, ideal for automotive and aviation sealing.

Permatex Aviation Form-A-Gasket No. 3 Sealant, 16 oz, Brown | Automotive & Aviation Sealant

£34.45
Description
Description
x

Permatex Aviation Form-A-Gasket No. 3 Sealant is a slow-drying, non-hardening sealant designed for both aviation and automotive use. The brush-top applicator makes it easy to apply a thin, even layer to close-fitting machined surfaces, hoses, and solid gaskets. Its formulation resists gasoline, oil, and grease, providing a versatile option for sealing tasks in demanding environments. The brown sealant remains flexible as it works, helping it adapt to minor surface variations without creating a rigid joint.

Why it can be a practical choice

  • Slow-drying, non-hardening brush-top formulation for comfortable positioning and adjustments.
  • Excellent resistance to gasoline, oil, and grease to help maintain a seal in tough conditions.
  • Approved for use in aviation as well as automotive applications, offering broad compatibility.
  • Wide temperature tolerance from -65°F to 400°F to suit varied climates and engine environments.
  • Recommended for close-fitting machined surfaces, sealing hoses, and solid gaskets.

Common uses in everyday maintenance and repairs

  • Sealing surfaces when a traditional gasket isn’t readily available.
  • Hose connections and fluid lines that require a flexible, reliable seal.
  • Substituting a gasket in situations where a solid gasket is impractical.
  • Tasks on both import and domestic vehicles across different model years and conditions.

How to apply

  1. Clean and dry the surfaces to remove oil, grease, and old sealant remnants.
  2. Apply a thin, even coat to one surface with the brush-top applicator.
  3. Join the surfaces and tighten per manufacturer guidelines; the sealant remains flexible during service.
  4. Reassemble components as recommended and operate normally, checking the joint as part of routine maintenance.

Specifications

  • Volume: 16 oz
  • Color: Brown
  • Form: Slow-drying, non-hardening brush-top sealant
  • Resistance: Gasoline, oil and grease resistant
  • Use: Aviation and automotive applications
  • Temperature range: -65°F to 400°F

FAQ

Q: What surfaces is Permatex Aviation Form-A-Gasket No. 3 Sealant suitable for?

A: It's designed for close-fitting machined surfaces, hoses, and solid gaskets, with broad automotive and aviation applicability.

Q: What temperature range does it tolerate?

A: The sealant stays effective from -65°F to 400°F, supporting varied climate and engine environments.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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