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Any suggestions for finishing jigs made of MDF

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Forum topic by WayneC posted 06-22-2007 09:44 PM 1221 views 0 times favorited 11 replies Add to Favorites Watch
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WayneC

12295 posts in 2788 days


06-22-2007 09:44 PM

Topic tags/keywords: mdf finishing jig jigs

Something easy cheap and hopefully easy to find a the local big box store. Thanks.

-- We must guard our enthusiasm as we would our life - James Krenov


11 replies so far

View Steffen's profile

Steffen

326 posts in 2726 days


#1 posted 06-22-2007 09:54 PM

My sled is made from MDF and the only thing I put on it is minwax. I only do the top, bottom and the slides (which are oak). I wish I had more suggestions for you.

Steffen

-- Steffen - Kirkland, WA

View Damian Penney's profile

Damian Penney

1140 posts in 2682 days


#2 posted 06-22-2007 09:56 PM

I usually just slop on some poly or danish oil, just something to prevent glue sticking to it.

-- I am always doing that which I can not do, in order that I may learn how to do it. - Pablo Picasso

View mot's profile

mot

4911 posts in 2727 days


#3 posted 06-22-2007 09:58 PM

I just seal it to paint it, and then only the edges. I mix some carpenters glue in water and paint it on. Other than that, what happens, happens. I hadn’t thought about poly or Danish oil as I figured it would just soak it up forever. Good tip, Damian. I’ll have to try it.

-- You can discover more about a person in an hour of play than in a year of conversation. (Plato)

View Tony's profile

Tony

978 posts in 2721 days


#4 posted 06-22-2007 10:17 PM

I just use 2 or 3 coats of paste wax-wait until each coat is fully dry, then buff until is shines.

Or, the second method I use is a general varnish, thinned with mineral spirit (30%) 12 hours between coats – 3 coats – after 3 weeks it is a really hard – long lasting finish.

It really does depend on the application – I never make my jigs look like works of art – they are normally a LOW TECH sollutions.

-- Tony - All things are possible, just some things are more difficult than others! - SKYPE: Heron2005 (http://www.poydatjatuolit.fi)

View WayneC's profile

WayneC

12295 posts in 2788 days


#5 posted 06-22-2007 11:52 PM

Thanks, I was asking because I did the suck up poly forever trick on the edges of a commercial table saw sled (LOL, I own a Dubby, a story for another day). I’m planning to build the shooting boards on the Lie-Nielson web site and thought it would be nice to make them durable. I think may try the varnish method Tony suggests.

-- We must guard our enthusiasm as we would our life - James Krenov

View David's profile

David

1970 posts in 2829 days


#6 posted 06-22-2007 11:53 PM

I use two spray coats of shellac.

-- http://foldingrule.blogspot.com

View WayneC's profile

WayneC

12295 posts in 2788 days


#7 posted 06-23-2007 01:54 AM

Assuming your using your HLVP rig David. Hmmm another thing to add to the someday list. : ^ )

-- We must guard our enthusiasm as we would our life - James Krenov

View Bill's profile

Bill

2579 posts in 2852 days


#8 posted 06-23-2007 01:57 AM

Well you could just wipe on the shellac too. I don’t suppose that chalkboard paint would be a good thing to use? At least you could mark it up and not worry about it.

-- Bill, Turlock California, http://www.brookswoodworks.com

View Karson's profile

Karson

34891 posts in 3091 days


#9 posted 06-23-2007 02:03 AM

I would think that you’d want something to soak into the fibers of the MDF and protect it. I’d think that Tony’s choice would do a great job.

-- I've been blessed with a father who liked to tinker in wood, and a wife who lets me tinker in wood. Southern Delaware karson_morrison@bigfoot.com †

View Bob Babcock's profile

Bob Babcock

1804 posts in 2776 days


#10 posted 06-23-2007 05:49 AM

I agree karson…Tony’s sounds like a winner. I just bought some to make a couple jigs I need and I don’t want to make them twice.

-- Bob, Carver Massachusetts, Sawdust Maker http://www.capecodbaychallenge.org

View Jeff's profile

Jeff

1011 posts in 2784 days


#11 posted 06-23-2007 06:28 AM

Wayne, to add to Tony’s comment and others above. Matthew Teague mentions in his router table project in his Shop Projects book, to coat the MDF in Shellac and then a few coats of wax. I would imagine the wax would go on top of a coat of wax much easier than the bare surface of MDF. It sounds like a seal coat more or less. I offer this up not having done it myself but from the standpoint that it makes sense.

- Jeff

-- Jeff, St. Paul, MN

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