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sealing MDF jigs

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nathan c

Post subject:

Posted: Wed Oct 25, 2006 10:09 am

Cocobolo

Joined: Fri Sep 08, 2006 2:18 am
Posts: 216
Location: Alabama

I've seen on some folks' web pages they seal their jigs. This especially seems to be the case with radius dishes. I have recently made a thickness gauge out of MDF and a dial gauge from HF

. I also have my outside mold made out of MDF, and I hope to use it many more times! Should I seal it? And if so, what should I use as a sealant? Is there any drawback to sealing MDF? I realize normal people probably aren't as clumsy as me, but I want to protect the jigs from my 32oz cup o' water

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BOBP

Post subject:

Posted: Wed Oct 25, 2006 10:12 am

Cocobolo

Joined: Thu Dec 01, 2005 2:36 pm
Posts: 111
Location: United States

Nathan I use shellac on all my mdf and plywood molds and jigs

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Shane Neifer

Post subject:

Posted: Wed Oct 25, 2006 10:27 am

Brazilian Rosewood

Joined: Thu Aug 04, 2005 7:50 am
Posts: 3152
Location: Canada

Hey Nay (almost a song in that!)

I make mdf radius dishes for sale. I finish them with two coats water based varathane. It is hard, easy to apply, dries fast and is reasonably priced in that I do a LOT of dishes with one gallon of the stuff. The first coat raises the grain a bit, a quick scuff with 120 paper, coat #2 and another quick scuff with220 paper and it is smooth and ready for action! I don't seal my moulds though, no particular reason why not I just haven't seen the need.

Shane

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Mark Tripp

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Posted: Wed Oct 25, 2006 12:37 pm

Koa

Joined: Thu Oct 27, 2005 2:07 am
Posts: 815
Location: Olympia
First name: Mark
Last Name: Tripp
City: Olympia
State: Washington
Zip/Postal Code: 98506
Country: United States
Focus: Build
Status: Semi-pro

I use shellac - just the canned stuff from the BORG.

-MarkMark Tripp39016.3785648148

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Michael Dale Payne

Post subject:

Posted: Wed Oct 25, 2006 11:40 pm

Old Growth Brazilian

Joined: Tue Dec 28, 2004 1:56 am
Posts: 10707
Location: United States

Zinsser's Seal Coat shellacMichaelP39016.3622337963

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Bob Long

Post subject:

Posted: Fri Oct 27, 2006 7:06 am

Koa

Joined: Mon Oct 23, 2006 1:46 am
Posts: 588
Location: Is this heaven? "No, it's Iowa."

I've taken to spraying my "jigs and things" with whatever is in my cup
when I'm done spraying. It beats spraying it into a paper towel.

long

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