can I make wood filler from sawdust?

If you’re looking for a way to fill gaps in your woodwork, you can try using sawdust. But first, let’s learn some facts about sawdust: What is it? How do you make it? And how can you use it in your home?

How do you make homemade wood filler?

To make your own wood filler, follow these steps:

  • Mix sawdust with glue
  • Mix sawdust with glue and sand
  • Mix sawdust with glue, sand and polyurethane (an oil-based waterproofing material)
  • Mix sawdust with glue, sand and polyurethane and paint (to create a smooth finish on the surface)

Can you use sawdust to fill gaps?

The short answer is no. Sawdust is not a good filler or glue. It’s not strong enough to hold its own weight, nor will it bond with the wood around it well enough to create a solid surface.

If you try using sawdust as a filler in your wood project, it’ll simply fall out of place and leave your project looking unfinished.

What can I use instead of wood filler?

Instead of using wood filler, you could try using polyurethane. This is a great solution because it can be applied with a brush and dries quickly enough to allow you to sand and paint shortly after applying.

If you’re looking for something that dries as quickly as possible, then this is the way to go. There are many brands available at your local home improvement store or hardware store (Sherwin Williams makes one called Poly-A-Grip).

It’s important to note that polyurethane will yellow over time due to sunlight exposure—so if want your project to look nice forever, consider using an oil-based stain instead.

Polyurethane also works well if you’re trying out different kinds of knots in your woodworking projects!

You can also use glue mixed with sawdust for filling holes left behind from sawing down pieces of lumber into smaller pieces; however, this does not work well in large spaces where there may be multiple gaps between pieces within same project due to sloppy workmanship or improper cuts made by inexperienced craftsmen/women who aren’t familiar with proper techniques used when cutting down tree trunks into smaller branches/logs before processing further by hand into usable products such as boards (planks) etcetera).

Glue should only be used when filling small gaps between planks or other flat surfaces like doors because otherwise, it will stick together all those layers which makes painting hard since any brush strokes end up getting covered over completely by thick layers of glue stuck together under each other making painting impossible.”

How do you make wood filler with sawdust and polyurethane?

Sawdust and polyurethane make a great combination for wood filler. To begin, you will want to mix together equal parts sawdust and polyurethane in a bucket.

This can be done with your hands or by using a drill mixer attachment, if available. Once this is done, you will need to apply it to the wood with the use of an old putty knife or similar tool that has been cleaned thoroughly with soap and water.

You can use additional polyurethane as needed if your first layer dries too quickly; however, do not let it dry completely before applying more polyurethane!

Once you have applied several coats of a sawdust-polyurethane mixture, allow them all time to dry (at least 30 minutes) before sanding lightly with fine-grit sandpaper until smooth enough for painting or staining.

Be careful not to overdo it during this step; you do not want all of those beautiful layers coming off! Repeat these steps until satisfied with how smooth things look and feel after being rubbed down between each coat application.

How do you make wood grain filler?

  • Mix sawdust with paint. The ratio of sawdust to paint can vary depending on the color, but a good rule of thumb is to use three parts of sawdust for every part of paint. For example, if you’re mixing white latex paint and brown construction dust together, use three cups of brown dust for every one cup of white latex.
  • Use a roller or brush to apply the mixture. A roller will give you a smooth finish while brushes can be used for more detailed work like trimming or painting around doorframes, windowsills, and baseboards.* If you’re using a sprayer or gun instead of rollers and brushes (or in addition), make sure that all surfaces are prepared properly before applying the wood filler.*

What glue mixes with sawdust?

You can use any of these glues, but you’ll have to experiment a bit to find which works best for you. Polyurethane adhesives are often used in construction projects because they can be used on wet surfaces and will hold up well under moisture.

Epoxy glues are good for their strength, but they’re also difficult to get off your hands if you get them on there.

glue is the most natural option and is easy to clean up with soap and water; polyester resin is great for filling gaps in wood projects; polyurethane resin will harden quickly but doesn’t have much flexibility once it sets.

How do you fill floor gaps with sawdust?

Sawdust is an excellent filler for gaps in wood floors. It is also possible to mix sawdust with glue to create a wood filler that can be used for filling the gaps between the slats on the floor.

The procedure involves mixing equal parts of sawdust and glue, preferably PVA or white carpenters’ glue. You should then apply a thin layer of this mixture over each gap and allow it to dry completely before filling it up with more sawdust + glue mixture.

The filled gaps will eventually blend well with the rest of your floor’s surface as they age due to weathering effects and daily wear-and-tear on your property.

What can you do with sawdust?

  • Sawdust is used for wood filler. You can use sawdust to fill the holes in wood and make it look nicer. This will be especially useful if you are making furniture or a car with wood, but you can also use this stationery in other projects where you need some filler to go into small gaps or cracks in your project’s surface.
  • Sawdust can be used for making paper, mulch, and composting materials like hay for livestock food production. So if you have extra sawdust on hand then why not put it to good use? Simply mix with clay soil and some water until a thick paste forms which then needs drying out before being cut into sheets using standard paper-making techniques.


I hope this article has been helpful for you. If you have any additional questions about sawdust and its uses, please feel free to contact us at our office. We’re always happy to help!

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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.

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