How long will the product remain good after opening the bottle?

this is the second time I've bought a bottle of this product. The first one I bought from a local auto parts. When the first one ran out it was over 20 years old and still good. It will last a long time as long as you seal the lid well and don't leave it open for long periods. I use it then put the lid right back on

Is this compatible with plastic fittings? I have a diesel storage tank with 3/4" threads that leak a little and I am looking for a sealant.

I primarily use this on Triumph motorcycle cases and it is the best Permatex (or any) product for the job. I've also used it on rubber pipes to metal banjos and it worked well there too. I suspect that it would work well in your situation but I have not used it on plastic and there are so many kinds of plastic that I would test it first. Personally, on threads where gas or oil is involved, I use the yellow Teflon tape -- it seals gasoline so diesel should be no problem.

My red plastic Moeller marine portable 6 gallon fuel tank has some small gas leaks around the screw on caps - think it would be safe to use...?

It would probably be safe to use but when mine was apparently shipped in a non-pressurized airplane hold. The cap was intact but the sealer had leaked out all over. I will buy locally next time. Auto stores may have it or may be able to get it.

would this work for marine freshwater outboard motor such as water pump gasket sealer

I don't see why it won't..I used it on my oil pump ad my water pump...works great...no leaks..oil, antifreeze does not have any affect on it..Good stuff.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Permatex 80019 Aviation Form-A-Gasket No. 3 Sealant, 4 oz.

Product ID: 5575397

Details

Brand
Permatex
Item Weight
4 Ounces
Item dimensions L x W x H
2.44 x 2.44 x
Material
Plastic
Style
4 oz.

⏳Slow-drying formula for precision

🔥Wide temp range -65°F to 400°F

🛢️Resists gasoline, oil & grease

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

92402Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Congo.

Secure transaction

Description

🛠️ Seal like a pro, fly or drive with confidence!

FUEL GREASE ARMOR - Formulated to resist gasoline, oil, and grease, guaranteeing leak-proof performance under harsh chemical exposure.
NON HARDENING FLEXIBILITY - Maintains a tacky, pliable seal that allows easy disassembly without damage—perfect for maintenance pros.
PRECISION SLOW DRY SEALANT - Brush-top applicator ensures controlled, mess-free application for perfect gasket sealing every time.
VERSATILE AVIATION GRADE USE - Approved for aviation and automotive, seals close-fitting machined surfaces, hoses, and solid gaskets with confidence.
EXTREME TEMPERATURE RESILIENCE - Operates flawlessly from freezing -65°F to scorching 400°F, ideal for aviation and automotive extremes.

Permatex 80019 Aviation Form-A-Gasket No. 3 Sealant is a 4 oz. slow-drying, non-hardening brush-top sealant designed for aviation and automotive use. It resists gasoline, oil, and grease, and performs reliably across a wide temperature range from -65°F to 400°F. Ideal for sealing close-fitting machined surfaces, hoses, and solid gaskets, it offers durable, flexible protection that simplifies maintenance and prevents leaks in demanding environments.

Specifications

ASIN	B000HBM3QQ
Best Sellers Rank	#3,592 in Automotive ( See Top 100 in Automotive ) #9 in Gasket Sealers
Brand Name	Permatex
Color	White
Compatible Material	Metal
Customer Reviews	4.7 4.7 out of 5 stars (2,181)
Global Trade Identification Number	00686226800190
Included Components	Permatex 80019 Aviation Form-A-Gasket No. 3 Sealant, 4 oz.
Item Dimensions	2.44 x 2.44 x 2.75 inches
Item Form	Liquid
Item Type Name	Permatex 80019 Aviation Form-A-Gasket No. 3 Sealant, 4 oz.
Item Weight	4 Ounces
Manufacturer	Permatex
Material Type	Plastic
Model	80019
Number of Items	1
Part Number	80019
Style Name	4 oz.
Surface Recommendation	Close-fitting machined surfaces, Hoses, Solid gaskets, Threaded connections, Fuel fittings
UPC	686226800190
Unit Count	1.0 Count
Warranty Description	Warranty
Water Resistance Level	Water Resistant

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

92402Fr

Duties & taxes included

In stock

Sold byAmazon CongoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Congo.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

View all Trustpilot reviews