---
product_id: 263048136
title: "POR-15 - 49204 U. S. Standard Tank Sealer"
brand: "por-15"
price: "¥44323"
currency: JPY
in_stock: false
reviews_count: 5
category: "Por 15"
url: https://www.desertcart.jp/products/263048136-por-15-49204-u-s-standard-tank-sealer
store_origin: JP
region: Japan
---

# Water-resistant silicone formula Compact 2 lb liquid container Metal-compatible tank sealer POR-15 - 49204 U. S. Standard Tank Sealer

**Brand:** por-15
**Price:** ¥44323
**Availability:** ❌ Out of Stock

## Summary

> 🛡️ Seal your tank, secure your ride—because corrosion waits for no one!

## Quick Answers

- **What is this?** POR-15 - 49204 U. S. Standard Tank Sealer by por-15
- **How much does it cost?** ¥44323 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/263048136-por-15-49204-u-s-standard-tank-sealer)

## Best For

- por-15 enthusiasts

## Why This Product

- Trusted por-15 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted by Pros:** Ranked #56 in Oil & Fluid Additives with 4.6-star rating from 600+ users.
- • **Compact Powerhouse:** Small footprint, big impact—easy to store and apply without bulk.
- • **Effortless Application:** Smooth liquid consistency for seamless sealing and superior tank longevity.
- • **Ultimate Metal Protection:** Seals and protects metal tanks from corrosion with military-grade precision.
- • **Water-Resistant Durability:** Silicone-based formula ensures long-lasting resistance against moisture and rust.

## Overview

POR-15 49204 U.S. Standard Tank Sealer is a compact, silicone-based liquid designed to protect metal fuel tanks from rust and corrosion. With a water-resistant formula and a 2-pound container, it offers professional-grade sealing performance trusted by automotive experts and ranked among top oil and fluid additives.

## Description

POR-15 49204 U. S. Standard Tank Sealer Compact in terms of design, it scores high on the aspect of utility too. This is what makes it worth the buy.

Review: Seemed to work well, time will tell. Poured well, not too thick or thin.
Review: 100 percent worth it. Worked excellent

## Features

- Compact construction
- Packed with features
- Unparalleled performance
- Seamless functionality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00J594AEY |
| Best Sellers Rank | #5,862 in Automotive ( See Top 100 in Automotive ) #56 in Oil & Fluid Additives |
| Item model number | 49204 |
| Manufacturer | POR-15 |
| Product Dimensions | 4.25 x 4.25 x 5 cm; 907.18 g |

## Product Details

- **Brand:** POR-15
- **Item dimensions L x W x H:** 42 x 42 x 50 millimeters
- **Item weight:** 907 g
- **Material:** Silicone
- **Style:** Compact

## Images

![POR-15 - 49204 U. S. Standard Tank Sealer - Image 1](https://m.media-amazon.com/images/I/510dW+udsqL.jpg)
![POR-15 - 49204 U. S. Standard Tank Sealer - Image 2](https://m.media-amazon.com/images/I/51IMLKTzf6L.jpg)
![POR-15 - 49204 U. S. Standard Tank Sealer - Image 3](https://m.media-amazon.com/images/I/61Fchwq3V9L.jpg)
![POR-15 - 49204 U. S. Standard Tank Sealer - Image 4](https://m.media-amazon.com/images/I/81v5pZCNbTL.jpg)

## Questions & Answers

**Q: Will it work on plastic tanks such as a weed eater?**
A: 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.

**Q: is this for external use?**
A: 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.

**Q: do I need to use this on a new gas tank I bought to instal on my car?**
A: 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!!

**Q: 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 ?**
A: 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 !

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by J***L on 5 December 2025*

Seemed to work well, time will tell. Poured well, not too thick or thin.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 29 August 2025*

100 percent worth it. Worked excellent

### ⭐⭐⭐⭐⭐ Review
*by W***5 on 17 July 2023*

I recently restored a 300 gallon fuel tank for my farm and wanted to clean out the inside of it as well. After extensively washing the inside of it out the best I could I poured 1 1/2-one quart cans of this sealer into the tank and it turned out awesome. The product, being so thin made it easy to disperse inside the large tank and coated the tank very well. Very happy with the result. P. S. Don’t get it on your hands, very difficult to get off.

## Frequently Bought Together

- POR-15 49204 Fuel Tank Sealer 32 fl oz
- POR-15 Metal Prep, Metal Etching Rust Neutralizer, Non-flammable and Water-based, 32 Fluid Ounces, 1-quart
- POR-15 Cleaner Degreaser, Non-flammable and Water Based, Removes Grease, Oil and Surface Debris, 1-quart

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**Shop now:** [https://www.desertcart.jp/products/263048136-por-15-49204-u-s-standard-tank-sealer](https://www.desertcart.jp/products/263048136-por-15-49204-u-s-standard-tank-sealer)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-01-22*