'handle wood finishing/buffing for dummies' questions

Joined
Dec 28, 2006
Messages
11
Hi,

I have seen a few threads on parts of this but didn't want to steal any of them, hope you don't mind another one.

I have started making new handles for a few kitchen knives (e.g. those http://img406.imageshack.us/my.php?image=p1030045oe6.jpg) , and I am still puzzled by the options for finishing the wood. Here is what I have done:

- I have used stabilized woods as well as some unstabilized ones (ebony, ironwood, rosewoods, koa, and others)

- As finishes I have used oil-based polyurethane, salad bowl finish, and tung oil so far.

- I just bought some white compound and a buffing wheel which I hope to use on my drill press.

I understand that for the stabilized woods and the oilier dense woods one or two coats of tung oil to bring out the figure and then buffing it with white compound may be a good way to go. Would I then still use wax (carnuba?) after that on a kitchen knife? Doesn't that get sticky in the kitchen?

What do I do after applying a number of coats of tung oil to denser unstabilized woods (like thuya, denser burl woods, ironwood) - would I buff it with compound/wax after that or just leave it as it is?

I had started with the polyurethane on unstabilized woods because I heard it gives the best protection for wood in the kitchen environment. That seems to work and they come out nice enough (especially the koa), but I'm not really crazy about the glossy stuff I have used (pure and thinned), I like the salad bowl finish as an alternative much better, generally doing about 4 coats with steel wool in between. Does it make any sense to buff with compound and/or wax after applying any of these finishes?

Are there any rules of thumb, lists, threads, books etc. out there that tell me which finish works best for which wood - or is this all trial and error?

I am using a nice Madagaskar rosewood. I applied one coat of polyurethane but the wood is so oily that this did not work well. I rubbed it down with steel wool and very lightly cleaned it with acetone. That made it really nice and smooth, but when I cleaned it , the wood color really bled out and stained the rag. Now I'm wondering how to finish it - will buffing be enough to keep it from staining in the moist kitchen environment?

Finally, the white compound I got (from Jantz) seems very hard and I don't see the buffing wheel taking up anything when I run it over the compound block. Do I need to do something to make this work better?

Sorry for all the naive questions, but I'm really totally new to this and haven't found a good tutorial or anything like that online. Thanks for your help,

Aloha,

Stefan
 
how big is your buffing wheel? how fast is your drill press running? you wont see the wheel pick up any but it will be there on the ends. just apply more as needed. if you get black spots appearing that can be scraped off, thats excess compound. wipe off any and keep buffing without adding any for a while. i finish up stabilized wood with a clean buff with light pressure.
 
Thanks, the wheel I have now is only 4" - I originally thought I could do it with my cordless drill but that thing is just not powerful enough. The drill press is a Sears 12", running from 500-3000. What would be the best speed for buffing?

Stefan
 
I dont buff, if you sand to 1500 or 2000 grit you will see a great gloss and not have to buff. I use tung oil on my kitchen knives and it seems to hold up well. They have been in the dishwasher a couple of times although I try to grab them. Most important is to make sure you really peen the pins the wood will pull back after a while and the pins will be all that is holding.

A buffer is running at 3750 rpm with a 6 to 8" wheel so the highest speed you have will be less that this if you plan to buff.
 
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