How To Clean Varnish Out Of Plastic Gas Tank

How to Clean Varnish Out of a Plastic Gas Tank

So, you've got varnish in your plastic gas tank? That's a sticky situation (pun intended!), but don't worry, it's solvable. This guide will walk you through the process of safely and effectively removing varnish from your plastic gas tank, ensuring you're back on the road in no time.

Understanding the Problem: Why Varnish in a Gas Tank?

Varnish in a gas tank is usually the result of old, stale gasoline. Over time, gasoline can leave behind a resinous residue that hardens into a varnish-like substance. This varnish can clog fuel lines, restrict fuel flow, and ultimately damage your engine. Crucially, this varnish is flammable, so safety precautions are paramount.

Preparing for the Clean: Safety First!

Before you begin, remember that you're dealing with potentially flammable materials. Work in a well-ventilated area, away from any open flames or sparks. Wear appropriate safety gear, including:

• Gloves: Protect your hands from harsh chemicals.
• Eye Protection: Shield your eyes from splashes.
• Respiratory Protection: A mask will prevent inhalation of fumes.

The Cleaning Process: Step-by-Step Guide

The cleaning process involves several steps. Depending on the severity of the varnish buildup, you might need to repeat some steps.

1. Thoroughly Empty the Tank

The first step is to completely empty the gas tank. This is crucial to minimize the risk of fire and to allow for effective cleaning.

2. Inspect for Damage

Carefully inspect the inside of the tank for any cracks or significant damage. If you find any, repairing those should be your priority before proceeding with cleaning. A damaged tank will be compromised for its intended purpose.

3. Choose Your Cleaning Agent

Several cleaning agents can effectively remove varnish. However, avoid using harsh abrasives that could scratch the plastic. Some common options include:

• Gasoline: Use this sparingly and only in well-ventilated areas. It's effective but potentially dangerous due to flammability.
• Acetone: A strong solvent that can dissolve varnish, but it's also highly flammable and should be handled with extreme care.
• Commercial Fuel Tank Cleaners: These are specifically designed for cleaning gas tanks and are generally a safer bet. Always follow the manufacturer's instructions carefully.

4. The Cleaning Process

Once you've selected your cleaning agent, pour a sufficient amount into the tank to coat the varnish. Allow it to sit for the recommended amount of time (check the product label for specifics). Then, carefully swirl and agitate the tank to loosen the varnish.

5. Rinse and Repeat

After the initial cleaning, thoroughly rinse the tank with clean gasoline or a fuel-safe solvent. If significant varnish remains, repeat the process. Multiple rounds might be necessary depending on the severity of the build-up.

6. Thorough Drying

Once you've removed all visible varnish, it's essential to completely dry the tank. This prevents future issues and residual contaminant issues. You can achieve this by turning the tank upside down to drain excess fluids, then allowing it to air dry completely. A hairdryer on a low setting can aid in the process.

Post-Cleaning Checks & Precautions

Before reinstalling your cleaned tank, conduct a final inspection to make sure all varnish has been removed and the tank is thoroughly dry. Always remember safety first. A thorough cleaning will prevent future issues, such as clogged fuel lines, engine damage, and more. If the varnish problem is persistent, consider professional assistance to thoroughly eliminate the issue.

This detailed guide should help you clean the varnish out of your plastic gas tank. Remember to prioritize safety throughout the entire process. Good luck!