what size tank will a pint seal?

Easily an 18-gallon tank - I had plenty left over with mine. I could probably have sealed even a 20 to 22-gallon tank.

I'm having my tank powder coated after I seal it. Will this stuff be ok baking at 400 degrees to cure powder or should I use after its painted

I would recommend powder coating first then applying the sealant! The sealant has a heat limit of about 400 degrees. Although I would clean the inside then wait till after the powder coating to use the metal prep & sealant.

Could you use this to protect and seal the outside of a cars rusted gas tank?

Very unlikely to seal a tank from the outside. Use a fiberglass tank repair from an automotive store. Even then...not too likely. This would be really expensive paint for just cosmetic purposes.

Will this work to seal plastic gas tanks

Hi Renee! If You Have A Plastic Tank That Is Leaking I Would Suggest A Soldering Gun (Heat) To Repair Leak/Crack. If Your Tank Is Nasty Inside I Would Suggest A Commercial Cleaning Product. POR 15 Needs A Rough Surface To Adhere To. I Would Not Suggest Using POR15 On A Plastic Tank. Good Luck!

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Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Seals Pinholes and Seams, Non-Porous, Flexible Film, 16 Ounces

Fuel Tank Sealer, Stops Rust, Corrosion and Leaks, Seals Pinholes and Seams, Non-Porous, Flexible Film, 16 Ounces

Product ID: 24816297

Details

Brand
POR-15
Item Weight
16 ounces
Item dimensions L x W x H
1.28 x 1.28 x
Material
Resin
Style
Fuel tank

⛽Fuel-proof formula

🕒Long 4-day cure time

🛡️Rust & corrosion defense

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VT16652

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Details

Brand
POR-15
Item Weight
16 ounces
Item dimensions L x W x H
1.28 x 1.28 x

Description

🛠️ Seal it once, forget it forever — the ultimate fuel tank armor!

PINHOLES SEAM SEALING - Creates a flexible, non-porous film that permanently seals leaks and pinholes.
STEPWISE PRECISION PREP - Requires meticulous cleaning and prep for flawless adhesion and unbeatable results.
UNMATCHED FUEL RESISTANCE - Seals against all fuels including high-alcohol Stage II blends for ultimate protection.
PROFESSIONAL GRADE DURABILITY - Trusted by DIYers and pros alike for automotive restoration with a single, thorough application.
INDUSTRY LEADING RUST PREVENTION - Gold standard formula stops rust and corrosion dead in its tracks for lasting tank integrity.

POR-15 Fuel Tank Sealer is a 16-ounce professional-grade resin coating designed to permanently seal fuel tanks against rust, corrosion, leaks, and pinholes. It forms a flexible, non-porous barrier resistant to all fuels, including high-alcohol blends, and requires a multi-step cleaning and curing process to ensure maximum adhesion and durability. Highly rated and trusted by automotive restorers, it delivers long-lasting protection with a single application.

Specifications

ASIN	B00B3I2NWG
Best Sellers Rank	#28,762 in Automotive ( See Top 100 in Automotive ) #147 in Automotive Sealants
Brand	POR-15
Brand Name	POR-15
Color	Silver
Compatible Material	Metal
Customer Reviews	4.6 out of 5 stars 1,587 Reviews
Global Trade Identification Number	00051491492089
Included Components	One Pint of POR-15 Fuel Tank Sealer Coating
Item Dimensions	1.28 x 1.28 x 1.57 inches
Item Form	Liquid
Item Type Name	Gas Tank Sealer
Item Weight	16 ounces
Item dimensions L x W x H	1.28 x 1.28 x 1.57 inches
Manufacturer	POR-15
Material	Resin
Material Type	Resin
Model	49208
Number of Items	1
Part Number	49208
Style	Fuel tank coating
Style Name	Fuel tank coating
Surface Recommendation	Metal
UPC	051491492089 680336041016
Unit Count	16.0 Fluid Ounces
Water Resistance Level	Water Resistant

Reviews

W**S

22.08.2018

C**E

1.11.2025

E**T

17.01.2026

J**S

3.07.2025

R**F

18.10.2025

A**R

8.04.2026

G**.

1.01.2026

J**H

12.04.2024

A**R

10.09.2024

A**7

3.03.2025

R**N

14.08.2024

R**.

27.02.2025

A**Y

12.06.2024

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