Is this resitant to fuel? I need it to repair a gromet on fil tube gas tank

In my case it did not work with alcohol based fuel.

Can I use this to stick a metal gasket to an intake manifold?

Metal gaskets are a one use crush type seal. I would not recommend using permatex #1 Hard setting. You will have an impossible job Removing the intake without damaging it if In the future you need to remove it. And Most likely it will have a vacuum leak!

any reason it won't work on flange of swimming pool pump?

It may; but containing solvents not designed for swimming in, I personally would choose Marine silicone products!

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Permatex 80003 Form-A-Gasket #1 Sealant, 11 oz.

Permatex 80003 Form-A-Gasket #1 Sealant, 11 oz.

Product ID: 9508986

Details

Brand
Permatex
Item Weight
318 Grams
Item dimensions L x W x H
2.06 x 2.25 x
Material
Silicone
Style
Form-A-Gasket

🔥Withstands -65°F to 400°F

⏱️Fast-drying in minutes

🛢️Resists fuels & shop fluids

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€ 30.99

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
Permatex
Item Weight
318 Grams
Item dimensions L x W x H
2.06 x 2.25 x

Description

🔧 Seal it fast, seal it right—because your ride deserves the best!

RAPID SEAL MASTERY - Dries quickly to lock in a permanent, hard-setting seal—no waiting around.
FLUIDS NO PROBLEM - Resistant to common automotive fluids and fuels, ensuring long-lasting durability.
EXTREME TEMP WARRIOR - Performs flawlessly from freezing cold to scorching heat, protecting your engine’s integrity.
OLD SCHOOL RELIABILITY - Non-silicone formula avoids peeling and excessive lubrication, giving you a trusted seal every time.
VERSATILE GARAGE ESSENTIAL - Perfect for freeze plugs, threaded connections, and manifold gaskets—your go-to for reliable repairs.

Permatex 80003 Form-A-Gasket #1 is a fast-drying, hard-setting sealant designed for sealing rigid materials and flanges. It resists common automotive fluids and fuels, operating effectively within a wide temperature range of -65°F to 400°F. Ideal for freeze plugs, threaded connections, and manifold gaskets, this non-silicone paste offers durable, reliable sealing for both import and domestic vehicles, making it an indispensable tool for professional and DIY mechanics alike.

Specifications

ASIN	B000HBNXD8
Best Sellers Rank	#25,363 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #63 in Silicone Adhesives
Brand	Permatex
Brand Name	Permatex
Color	Factory
Compatible Material	[Common Shop Fluids and Fuels]
Customer Reviews	4.6 out of 5 stars 1,363 Reviews
Global Trade Identification Number	00686226800039
Item Dimensions	2.06 x 2.25 x 8 inches
Item Form	Paste
Item Weight	318 Grams
Item dimensions L x W x H	2.06 x 2.25 x 8 inches
Manufacturer	Permatex
Material	Silicone
Material Type	Silicone
Model	80003
Number of Items	1
Part Number	80003
Style	Form-A-Gasket #1
Style Name	Form-A-Gasket #1
Surface Recommendation	hard surfaces
UPC	686226800039
Warranty Description	Manufacturer
Water Resistance Level	Water Resistant

Reviews

C**N

24.06.2025

J**R

21.01.2026

T**S

18.02.2026

A**W

13.03.2026

J**R

18.12.2025

J**J

26.03.2026

M**D

18.02.2026

R**E

18.01.2026

ポ**ポ

19.11.2025

T**O

22.10.2023

N**S

3.07.2020

B**R

1.11.2025

E**E

3.01.2026

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