---
product_id: 6359719
title: "Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap"
brand: "gasoila"
price: "¥5774"
currency: JPY
in_stock: true
reviews_count: 8
category: "Gasoila"
url: https://www.desertcart.jp/products/6359719-gasoila-thread-sealant-for-ethanol-e10-and-e85-applications-non
store_origin: JP
region: Japan
---

# E10 & E85 ethanol-safe Non-hardening, flexible seal USA-made, small batch quality Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap

**Brand:** gasoila
**Price:** ¥5774
**Availability:** ✅ In Stock

## Summary

> 🛠️ Seal the deal with confidence—fuel your projects with Gasoila’s ethanol-proof power!

## Quick Answers

- **What is this?** Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap by gasoila
- **How much does it cost?** ¥5774 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/6359719-gasoila-thread-sealant-for-ethanol-e10-and-e85-applications-non)

## Best For

- gasoila enthusiasts

## Why This Product

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

## Key Features

- • **Ethanol-Blend Ready:** Specifically formulated for E10 & E85 fuels, ensuring leak-proof, chemical-resistant seals where it matters most.
- • **Broad Industrial Use:** Ideal for fuel lines, motors, compressors, hydraulic systems, and more—trusted by pros for reliable, long-lasting performance.
- • **Precision Application:** Innovative brush-in-cap design delivers mess-free, professional-grade application every time—no waste, no fuss.
- • **Multi-Material Mastery:** Works seamlessly on brass, copper, stainless steel, aluminum, black pipe, tin, and galvanized fittings for ultimate versatility.
- • **Flexible & Durable Seal:** Non-hardening and non-toxic paste stays pliable in extreme temps (-100°F to 600°F), preventing cracks and leaks over time.

## Overview

Gasoila Thread Sealant is a USA-made, non-toxic, non-hardening dark green paste engineered for ethanol-blended fuels (E10 & E85). It provides a flexible, durable seal compatible with multiple metals and withstands extreme temperatures from -100°F to 600°F. Designed for professional use with a convenient brush-in-cap, it ensures precise, mess-free application across a wide range of fuel and hydraulic system applications.

## Description

This premium thread sealant is specially formulated to provide reliable, leak-proof performance in ethanol-blended gasoline applications, including E10 and E85 fuels. As a non-hardening, non-toxic, and opaque dark green paste, it remains pliable even in low temperatures, ensuring consistent performance in challenging environments. The unique formula is designed to create a positive seal on pipe threads, joints, fittings, hoses, nozzles, pump assemblies, fuel lines, oil burners, and hydraulic systems, making it ideal for professional and heavy-duty applications. Whether working with brass, copper, stainless steel, aluminum, black pipe, tin, or galvanized pipe, this versatile sealant delivers outstanding compatibility, allowing users to handle a wide variety of materials with confidence. Its non-hardening properties prevent cracking or drying out over time, providing long-term reliability, especially in cold conditions. This ensures a consistent, flexible seal that performs under pressure without compromising safety or quality. Manufactured in the USA in small batches, this thread sealant reflects a commitment to precision and quality. Each unit is carefully crafted to meet high standards, making it an excellent choice for professionals who demand superior performance. The brush-in-cap design enhances application convenience, allowing users to apply the sealant precisely where needed without unnecessary mess or waste. From pipe threads and fuel lines to motor couplings and hydraulic components, this thread sealant is ideal for a broad range of uses in both automotive and industrial settings. The non-toxic formulation further ensures that it’s safe for use in sensitive applications, providing peace of mind in environments that require strict adherence to safety standards. Depend on this versatile, American-made thread sealant to keep critical systems operating smoothly and leak-free across diverse applications.

Review: Fantastic product. - Worked great. Every few months I had to reseal my gas line fittings. I have 13 fittings between the fuel pump and the 3 carbs. After using Gasoila, its been 3 years without a leak.
Review: Applied on pipe threads sealed, perfectly cleaned and prepped it properly no problems - Used it for a gasoline line on my car works real good no leaks on the fittings. Good product.

## Features

- Formulated for Ethanol Blends: Specifically designed for ethanol-blended gasoline applications, including E10 and E85, this thread sealant offers a secure, leak-proof seal for fuel line threads and fittings.
- Non-Hardening & Non-Toxic: A non-hardening, non-toxic formula that stays pliable, even in cold temperatures, providing a flexible seal that won’t crack or dry out under extreme conditions, ideal for reliable, long-lasting use.
- Superior Compatibility: Engineered for use on various materials, including brass, copper, stainless steel, aluminum, black pipe, tin, and galvanized pipe, making it a versatile solution for multiple applications. - 100 to 600 Degrees.
- Professional-Grade Design: Made in small batches in the USA, this thread sealant features a convenient brush-in-cap design for precise, mess-free application, ideal for professional-grade performance and ease of use.
- Wide Range of Applications: Perfect for pipe threads, joints, fittings, hoses, nozzles, pump assemblies, fuel lines, oil burners, and more. Suitable for compressors, engines, motors, and hydraulic systems, ensuring a reliable seal.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B008HPVEP0 |
| Best Sellers Rank | #19,313 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #34 in Industrial Thread Sealants |
| Brand | Gasoila |
| Brand Name | Gasoila |
| Color | dark green |
| Compatible Material | Metal |
| Customer Reviews | 4.6 out of 5 stars 246 Reviews |
| Global Trade Identification Number | 00686081010918 |
| Included Components | thread sealant |
| Item Dimensions | 2 x 3 x 4 inches |
| Item Form | Paste |
| Item Type Name | E-Seal 1/4 pt. Brush |
| Item Weight | 0.21 Kilograms |
| Item dimensions L x W x H | 2 x 3 x 4 inches |
| Manufacturer | Federal Process |
| Material | Sealant |
| Material Type | Sealant |
| Model | GE04 |
| Number of Items | 1 |
| Part Number | GE04 |
| Style | Industrial |
| Style Name | Industrial |
| Surface Recommendation | Metal pipe threads |
| UPC | 686081010918 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Water Resistant |

## Product Details

- **Material:** Sealant
- **Brand:** Gasoila
- **Style:** Industrial
- **Item Weight:** 0.21 Kilograms
- **Item dimensions L x W x H:** 2 x 3 x 4 inches

## Images

![Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap - Image 1](https://m.media-amazon.com/images/I/71davNO3RUL.jpg)
![Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap - Image 2](https://m.media-amazon.com/images/I/718EkInT-cL.jpg)
![Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap - Image 3](https://m.media-amazon.com/images/I/619hQw9XsVL.jpg)
![Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap - Image 4](https://m.media-amazon.com/images/I/61Zd0HHCi7L.jpg)
![Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap - Image 5](https://m.media-amazon.com/images/I/814WD6hae3L.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Is this sealant approved for use with gasoline fitting applications?**
A: It is specially designed for use in fittings handling gasoline and gasoline blends up to 85% ethanol. See technical specs here:

https://www.fedprobrands.com/products/pipe-thread-sealants/gasoila-e-seal-thread-sealant.html

**Q: Is this appropriate for fittings on a dispensing pump for diesel fuel?**
A: It’s about the best I’ve found for any diesel or gasoline engine application.

**Q: Will this work on gas tank drain plug that is leaking slightly??**
A: Depends on why the plug is leaking.  If the plug is threaded and the threads are damaged, probably not.  If by "slightly" you mean weeping and if the threads are ok, then it may be sufficient.  The reason that I used Gasoila E-seal was because of its resistance to degradation by Ethanol, especially in high percentage Ethanol/Gasoline blends.  The product is a sealer, not a glue or filler.

**Q: Has anyone used this on fittings that are exposed to engine oil?**
A: It is rated for use with ethanol gasoline. Ethanol is much more harsh than engine oil. I would just avoid getting it inside an engine.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fantastic product.
*by W***M on May 1, 2026*

Worked great. Every few months I had to reseal my gas line fittings. I have 13 fittings between the fuel pump and the 3 carbs. After using Gasoila, its been 3 years without a leak.

### ⭐⭐⭐⭐⭐ Applied on pipe threads sealed, perfectly cleaned and prepped it properly no problems
*by L***S on January 8, 2026*

Used it for a gasoline line on my car works real good no leaks on the fittings. Good product.

### ⭐⭐⭐⭐⭐ Seals as Advertised
*by A***R on February 12, 2026*

seems to work as intended, but it is a bit messy and hard to clean.

## Frequently Bought Together

- Gasoila Thread Sealant for Ethanol E10 & E85 Applications, Non-Hardening, Non-Toxic, Opaque Dark Green Paste – USA-Made, 1/4 Pint – Ideal for Pipe Threads, Motors, Fuel Lines & More, Brush in Cap
- Gasoila Soft-Set Pipe Thread Sealant – Non-Hardening Paste for Metal & Plastic, 1/2 Pint with Brush Cap – Reliable Leak Prevention, Drip-Resistant, Temp Range -100 to 600°F, Made in USA
- Gasoila Yellow PTFE Thread Seal Tape – Professional-Grade, 1/2 Inch x 260 Inch, High-Density Thread Tape for Gas Lines– Leak-Proof Seal, Non-Toxic

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-05-13*