Gather fine sawdust from your shop or recent woodworking project and store it in a clean container until ready to mix up a batch of wood fill. Liquid hide glue dries hard making it much easier to sand and its transparent to most stains it will match better.
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Spread the sawdust out on a flat surface and carefully sift through it to remove any larger pieces or debris that you have inadvertently collected along with it.
Making wood filler with hide glue. Pack your custom made wood filler into the hole and let it dry. How to make wood filler out of dust and glue. To make my custom filler i started by sanding a piece of scrap from the same project letting the fine dust fall onto my pallet a piece of hardboard.
Its best to use a thin viscosity ca glue and add plenty of it. However some epoxy glues dry quick. To make sure the new tacks will hold properly ill fill the holes with a homemade wood putty mixed from sawdust and glue.
Glue based wood filler is difficult to clean. To ensure that the wood filler is effective you must ensure that it does not contain any shavings or large pieces of wood. So quickly wash off your putty knife.
Wood glue hide glue and even epoxy glue. You can make wood fillers from the sawdust but the color match can be a hit or miss deal. Discard unused wood filler.
Liquid hide glue is a better glue for this than pva yellow glue. It will not take much effort to sand this putty. The other ingredient in a homemade sawdust wood filler is something to hold it together.
Oversanding will only gouge your patch. Before mixing the sawdust with carpenters glue remember that this water soluble product has a color of its own and gives the filler an unappealing grayish tinge. Add cyanoacrylate ca glue to the sanding dust to make a slurry.
First take a small container and put in some wood glue. After putty has dried sand very lightly with fine grit sandpaper. The problem with using a substance like hide glue as a filler is that the pores will be filled but with a brownish glue that dries essentially clear meaning the pores will be more.
Add some sawdust from the same wood that youve been working on and stir it up thoroughly until you get a thick paste. Step 4 add glue. It will not save.
Usually open grain woods such as mahogany are filled with a pigmented filler to approximate the color of the wood and close the pores making them less visible. Just about any wood glue will work to make this filler. Clear epoxy glue is a better choice.
Check out video on making the best wood fill i know of. A little sanding and your homemade putty patch is complete. Mix sawdust with glue.
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