how to thin Bondo wood filler?

Bondo is one of the most popular wood fillers to use in your home. Because it’s versatile and can be used for a variety of applications, Bondo is an affordable way to fix any number of problems with your furniture.

But what if you want to thin down Bondo so that it’s easier to apply or spread? Or maybe you don’t have enough Bondo on hand but want to save money by mixing up more at home?

Here are some tips and tricks for mixing up your own batch:

Can Bondo be thinned with acetone?

Yes, but you need to be careful. Bondo can be thinned with acetone, lacquer thinner, mineral spirits, paint thinner, and turpentine. It is best to keep the ratio of Bondo thinner at 1:1 or 2:1.

How do you mix Bondo wood filler?

Mixing Bondo wood filler is simple. It’s a straightforward process that only takes a few minutes, so there’s no need to worry about making a mistake.

In fact, if you’re careful and follow the directions in this article, you’ll be able to apply Bondo like an expert in no time at all!

Bondo is a two-part compound made up of polyester resin and fine silica sand particles. These two parts are blended together into one component for application on damaged surfaces or objects such as scraped walls or furniture items (such as tables).

What is the difference between Bondo and wood filler?

Bondo is a two-part epoxy putty that is used to fill holes and cracks in wood, metal, fiberglass, and plastic. It comes in different colors and can be used to create custom blends for color matching.

Bondo filler is best for small projects such as repairing dings on the side of your car or adding support to a cabinet that sags when you open it over time.

Bondo wood filler is an ideal solution for filling holes or gaps between sections of wooden boards before sanding them down; it’s also good at patching up areas where paint has chipped off from furniture

Is Bondo wood filler flexible?

If you don’t know what Bondo is, it’s a wood filler that comes in a tube. The tube is the same shape as toothpaste and has a nozzle at one end.

You squeeze some of the Bondo out onto whatever piece of wood you’re repairing. After it dries, it’s flexible enough to bend up or down with little effort on your part.

It’s also strong enough to withstand pressure from various kinds of tools when they are used to sand or scrape off excess material from around your repair area.

What will dissolve Bondo?

There are a number of solvents that will dissolve Bondo. These include:

  • Acetone
  • Alcohol (grain alcohol, isopropyl alcohol, etc.)
  • Xylene
  • Mineral spirits
  • Toluene
  • Isopropyl alcohol (91% or 99%) is the best choice for dissolving Bondo because it’s available at most drug stores and hardware stores with a pharmacy department. If you can’t find any 91% or 99% isopropyl alcohol locally, you can order it online from Amazon or another retailer in small quantities at a reasonable cost.

Does Bondo cure without hardener?

Bondo is a two-part epoxy resin filler that’s easy to apply and sand. It will adhere well to bare wood, fiberglass, and metal.

Bondo does not require any hardener to cure, because it contains both parts of the epoxy system (resin plus hardener) in one package.

However, if you don’t use all of your Bondo within a few months, you should throw away what remains since it’ll start to get too thick over time as it cures without being mixed with more hardener again.

Do you have to mix Bondo Wood Filler?

Bondo Wood Filler is a two-part epoxy putty that’s used to fill holes and cracks in wood. It’s also used to repair wood furniture, and it makes a good alternative to wood putty since it doesn’t require sanding or painting afterward.

Bondo comes in five different colors: gold, white, red, gray, and brown. Each color has its own hardener (or catalyst), so you have to make sure you’re using the right one with your Bondo.

For example, if you’re using a white Bondo Wood Filler with its corresponding hardener kit, then the entire process will take only two hours before it cures completely into solid plastic—but if you try mixing up some gray or red Bondo instead of their respective catalysts with no hardeners at all…well then there won’t be much fun left in your weekend project!

Is Bondo good for wood repair?

Bondo is a wood filler that’s used to repair cracks and voids in wood. It’s an adhesive that bonds to just about any material, including metal, wood, stone, and plastic.

Bondo works well for filling holes in wood because it can be sanded smooth once dry. When you’re ready to paint your project after using Bondo as a wood filler, make sure you sand the area thoroughly first so there are no bumps or ridges left behind from the dried Bondo.


Bondo is a flexible, solvent-based filler that you can use to repair your wood or other materials. It can be used on a variety of surfaces and it’s often used by hobbyists and carpenters.

Since Bondo is made up of several ingredients that can dissolve in acetone, it’s important to know how thinning the product will affect its use as a filler before using too much solvent on your project!

Photo of author

Martin Flood

Martin Flood has been working in the construction industry for over 20 years as a general contractor with expertise in remodeling projects that are large or small. He has furthered his career by specializing in epoxy resin flooring, providing excellent service to both commercial and residential clients. Martin’s experience enables him to offer professional advice on how to choose the right type of project based on your needs and budget.

Leave a Comment