Will it work on plastic tanks such as a weed eater?

I used this in May 2020 on a Honda mower tank - the one that was recalled for a leaky seam. It worked. But in September 2021 it started leaking again so that was only a temporary fix in this case. Not the product's fault.

is this for external use?

it can be used as an external but intended for internal. i have vast experience with por15, they make an incredible exterior rush proof coating as well.

do I need to use this on a new gas tank I bought to instal on my car?

No, it is not necessary, especially considering most new cars have plastic tanks that won't rust anyway. Don't go through the hassle of? removing you're gas tank and fuel pump just for the fun of it!!

I have a toy hauler trailer it has a 40 gallon fuel tank that is full of rust would this product remove rust and seal the tank ?

Hi, this will seal your tank but it won't remove the rust you'll have to use a rust remover first like evaporust or something !

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POR-15 49216 U.S. Standard Tank Sealer - 8 fl. oz.

Product ID: 263048135

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Details

Brand
POR-15
Item dimensions L x W x H
7.1 x 7.1 x
Item weight
0.01 Ounces
Material
Silicone
Style
Compact

⛽Fuel-proof formula

⚙️Long-lasting durability

🛡️Superior rust defense

Description

🛢️ Seal it tight, ride with confidence!

PROVEN TRACK RECORD - Ranked #69 in Automotive Fuel Transfer & Lubrication, a top choice for serious vehicle maintenance.
UNMATCHED FUEL RESISTANCE - Impervious to all fuels including high-alcohol Stage II blends, ensuring your tank stays leak-free.
PRECISION APPLICATION SIZE - Compact 8 fl. oz. container designed for easy handling and perfect coverage without waste.
PROFESSIONAL GRADE STRENGTH - Engineered for superior adhesion and toughness, trusted by mechanics and enthusiasts alike.
ULTIMATE RUST CORROSION BARRIER - Stops rust and corrosion dead in its tracks, extending the life of your fuel tank.

POR-15 U.S. Standard Tank Sealer is a high-performance protective coating designed to seal fuel tanks against leaks, rust, and corrosion. Its advanced formula resists all fuel types, including modern high-alcohol blends, delivering professional-grade durability in a convenient 8 fl. oz. size favored by automotive pros.

Specifications

ASIN	B00B3HXCZ4
Best Sellers Rank	#37,158 in Automotive ( See Top 100 in Automotive ) #69 in Automotive Fuel Transfer & Lubrication
Item model number	49216
Manufacturer	POR-15
Product Dimensions	7.11 x 7.11 x 7.62 cm; 0.28 g

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