In trying to figure out how to finish my electric guitar, I stumbled on to Tru Oil Gunstock finish. Which as it turns out is easy to use, doesn't require equipment such as air compressors, and spray guns. It doesn't emit harmful odors either I was able to pick up my Tru Oil at the local Sporting Goods store, that carries guns.
Tru Oil is basically a polymerized linseed oil, that is easy to use. In the previous page about sanding the body, I sanded down to 220 grit sandpaper. Since the wood I used for the electric guitar was Mahogany, being an open grained wood, I needed to seal it before applying the Tru Oil. There is also a sealer & filler that is also made by the same company.
The photo above shows the first applitacion of the Tru Oil sealer / filler.
After the sealer / filler is applied, let it dry. Even though according to the directions, it dries in about two hours, I left it sit for 24 hours. Then I sanded it down with 600 grit sandpaper and then put on a second coat of the sealer / filler.
After sanding, make sure all of the sanding dust is off of the guitar. The best way to do this is to use a tack cloth. Once the wood is sealed, then change over to the Tru Oil. The best way to apply not only the Tru Oil, but also the sealer, is with an old cotton cloth. After applying the 5th coat of Tru-Oil, use 0000 Steel wool instead of 600 grit sandpaper in between coats.
The photo below shows my electric guitar with 8 coats of Tru Oil.
Next page: Laying out the Custom Pickguard