When fully cured, J-B Weld is completely resistant to water, gasoline, and about every other petroleum product or automotive chemical. For wet-surface or submerged water or gasoline repairs, try our SteelStik or WaterWeld. KwikWeld is a great alternative to original J-B Weld when you need a quick-setting epoxy.

Then, What is the best epoxy for plastic?

Best Epoxy for Plastic, Reviews
  • #7 Loctite Super Glue Plastics Bonding System.
  • #6 Loctite Epoxy Plastic Bonder 0.85-Fluid Ounce Syringe.
  • #5 J-B Weld 50112 ClearWeld Quick-Setting Epoxy Syringe.
  • #4 Permatex 84145 Permapoxy Black Plastic Weld.
  • #3 BSI BSI-202 Quick-Cure Epoxy.
  • #2 Rhino Glue Pro Kit.
  • #1 Gorilla 2 Part Epoxy.

Considering this, Can You Use Flex Seal on plastic gas tanks? A: We do not recommend using Flex Seal Liquid® to seal a gasoline tank or any in contact with other flammable liquids.

25 Related Questions and Answers Found 💬


What is the best gas tank repair kit?

The Versachem Heavy Duty Fuel Tank Repair Kit permanently repairs gasoline and diesel fuel tank leaks in less than 20 minutes. Use it to repair pinholes, rust-outs, hairline cracks and holes up to 1/2″ in diameter. Resistant to water, gasoline, diesel and kerosene.

How do you fix a hole in a plastic gas can?

How to Repair Plastic Gas Cans
  1. Dump out any gasoline in the gas can.
  2. Locate the hole or crack in the gas can.
  3. Cut your plastic into a size that is large enough to patch the crack or hole.
  4. Place the piece of plastic on a large metal or other non-combustible surface.
  5. Heat the plastic piece with the heat gun until it is pliable and transparent.

How do you fix a crack in a plastic gas tank?

How to Repair Cracks in a Plastic Gas Tank
  1. Use the sandpaper to sand the area around the crack. This helps to make the area smooth by removing jagged edges.
  2. Cut your fiberglass cloth into a swatch large enough to cover the hole or crack in your tank.
  3. Use an epoxy solution.
  4. Leave the tank with the epoxy alone for 20 to 30 minutes.

How long will JB Weld last?

At room temperature, J-B Weld sets in 4-6 hours to a dark grey color. A full cure is reached in 15-24 hours. J-B Weld has a tensile strength of 3960 PSI and sets to a hard bond overnight. It can withstand temperatures up to 550ºF when fully cured.

Does Gasoline eat super glue?

Re: does gas eat through super glue? (

Super glue,or anything else similar, is not a fix and shouldnt be used in a vehicle.

Will flex seal work on a plastic gas tank?

A: We do not recommend using Flex Seal Liquid® to seal a gasoline tank or any in contact with other flammable liquids.

Can you plastic weld a gas tank?

A plastic welder is safe to be used around gas and fumes, but never use it where there is an open flame. In cases of small holes or leaks in your plastic fuel tank, you might want to explore taking one of these easy steps to fix it before considering a full replacement.

Fixing a leaking fuel line is a simple task for a repair facility and costs between $60 and $120. Lavacot says it can easily be done at home by the semi-advanced mechanic.

What are plastic fuel tanks made of?

Typically, plastic fuel tanks are made from these five different materials: high density polyethylene (HDPE), polypropylene (PP), regrind plastic (recycled polyethylene), a plastic adhesive or ethyl vinyl alcohol (EVOH). These storage tanks can be formed by rational molding or blow molding processes.

How can I fix a hole in my gas tank?

  1. Step 1 – Jack up the Vehicle.
  2. Step 2 – Find the Leak or Hole in the Gas Tank.
  3. Step 3 – Sand the Leaky Area of the Tank.
  4. Step 4 – Clean the Surface.
  5. Step 5 – Mix the Epoxy.
  6. Step 6 – Shape and Apply the Epoxy.
  7. Step 7 – Insert the Epoxy in the Hole.
  8. Step 8 – Fill the Tank with Gas.

Does JB water weld work?

No, will not work if in contact with water. You’re thinking of traditional JB Weld. The Water Weld does. It is not as strong as the regular stuff.

How do you fix HDPE plastic?

How to Repair High-Density Polyethylene
  1. Assess the damage to the high-density polyethylene. If the plastic is cracked, measure the length.
  2. Find the ends of the crack and drill holes in them to assure the crack will not spread after your weld cures.
  3. Begin heating the patch by passing the heat gun over it.

Does seal all work on plastic?

What can I use to seal a plastic gas tank?

To seal a plastic gas tank with epoxy glue, start by draining the tank and letting it dry. Then, sand the area around the hole or crack with coarse grit sandpaper, and clean it with a cloth soaked in rubbing alcohol. Next, mix the epoxy glue, apply it over the opening, and press a fiberglass patch over the epoxy.

Can JB Weld be sanded?

J-B Weld can be used as an adhesive, laminate, plug, filler, sealant, or electrical insulator. When fully cured, J-B Weld can be drilled, formed, ground, tapped, machined, sanded, and painted. However until hardened, it can sag or drip when applied.

How do you clean a plastic gas tank?

Fill the tank with water once more. Pour a half gallon of muriatic acid into the tank. Move the tank around a few minutes. Let the gas tank sit overnight to clean varnish out.

Is JB Weld permanent?

J-B Weld is The Original Cold Weld two-part epoxy system that provides strong, lasting repairs to metal and multiple surfaces. Mixed at a ratio of 1:1, it forms a permanent bond and can be shaped, tapped, filed, sanded and drilled after curing.

How do I apply for seal all?

Follow these step-by-step directions when using Seal-All:
  1. To open, puncture seal with pointer cap.
  2. USE AS A SEALANT: Apply directly to clean, dry surface.
  3. USE AS A CONTACT ADHESIVE: Spread coating on each surface to be joined together.
  4. Seal-All will set in about 2-3 minutes and reaches full cure in 2-6 hours.

Will JB Weld stop water leak?

At least two different brands on the market — JB Weld and Harvey’s Epoxy Putty — work equally well for the purposes of stopping leaks. Both adhere best to dry surfaces and are effective for blocking small leaks in copper and galvanized steel pipe. One of the faucets should be below the leak.

What are the fuel lines and where are they located? Fuel lines carry fuel from the fuel tank to the engine. These rubber hoses or steel lines run from the fuel pump to a fuel filter, which may be located in the rear of the vehicle near the fuel pump or in the engine compartment.

Can I replace steel fuel line with rubber?

How do you weld plastic?

Step 1: Identify what type of plastic you are welding. Step 2: Scrape back the outlay layer of plastic and create a V groove to weld into. Step 3: Tack weld the two plastic parts together with a plastic welding tacking tip or a soldering iron. Step 3: Conduct plastic weld using either a speed weld or a pendulum weld.

What should fuel tank pressure be?

The ambient air temperature needs to be between 40 and 100 degrees (for most vehicles) and the fuel level needs to be near a half of a tank full. (The air temperature in the tank will effect the fuel vapors.) The barometric pressure must fall between 22 in. Hg on Fords and 19 in.

What should fuel tank pressure be?

How strong is JB Weld?

J-B Weld™ has a tensile strength of 5020 PSI and sets to a hard bond overnight. It can withstand temperatures up to 550ºF when fully cured.

Will JB Weld work on plastic?

For many plastics, the original J-B Weld creates a strong bond that holds up over time provided that the item isn’t required to flex or bend. J-B Weld is not designed for some types of plastic, but the company makes many other epoxies designed for specific situations involving many types of plastic.

How much does it cost to fix a fuel line?

If you need fuel hose replacement, the average cost can vary a lot depending on the make and model, anywhere from $120 to $500 or even more.

What are the symptoms of having air in the fuel line?