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Sitting in a turkey induced haze looking at a piece of mdf on my workbench and started thinking what it could be used for other than as a building board.  My local HomeDepot has 1/8" MDF sheets and I was thinking it might be a good material for building forms.  Couldn't find any references to it use for forms but thought I would put it out here for comment.

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Hi.

MDF is not very stable and if glued will pull apart very easy. The glue joint will hold but the fibres of the MDF will part.

It's very poor to cut and will absorb moisture very quickly and swell.

On the plus side it's cheep and easy to get hold off.

 

Been there used it and I put it down to expearance learnt.

So for me it's a no no.

But others may have had better expearance's.

it's brill for making Jigs.

 

Regards Antony.

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The false keel and bulkheads on my Amati Pegasus kit were of mdf. I much prefer it to the alternative use of plywood for these parts.

 

No problem in gluing it and it cleans up quite nicely.

 

B.E.

And no warping either!

 

These guys: http://www.imaginethatlaserart.com/ , make a full line of laser cut architectural and railway models out of mdf. Amazingly well done.

 

Andy

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MDF is extensively used these days in the furniture industry and by architectural model makers. I am using it for the bread-and-butter construction of a hull. Sanded and let in with quick-sanding filler it actually gives a nice surface and I have used it as workbench back and for similar applications. I quite like the material as it has no 'direction' and doesn't splinter like plywood when sawn. Also, it doesn't warp when used properly, i.e. access of humidity from only one side.

 

wefalck

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B.E. Hi! I fully support)))

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Using the clipper to ship fish I like it.

 

I have used a lot of MDF in displays and exhibits. It is a good material for jigs and as a smooth flat surface I use it all the time for zero clearance inserts on my tablesaw.

 

Michael

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MDF is pretty good a material to work with and widely used in the joinery trade for all sorts of furniture and panelling. I come across it widely in my job. Several people have said to me that they prefer the water resistant version which is universally coloured a pale green and takes a finer finish when sanded ready for painting. The cost of goint to water resistant is just a few pounds per 8 by 4 foot sheet, Its widely available from 6mm ( 1/4 inch) to 25mm (1 inch nominal) but beware its very heavy in full sheet sizes.

 

Norman

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Wayne,

 

Nope....MDF is usually a brown, smooth and looks like what we knew as Masonite.  Might be the same stuff. https://www.google.com/search?q=particle+board&tbm=isch&tbo=u&source=univ&sa=X&ei=86GbUqKrH6q5igLJ7YGQBg&sqi=2&ved=0CEUQsAQ&biw=1348&bih=742#q=mdf&tbm=isch

 

Particle board is wood color, and you can see the chunks of wood.   https://www.google.com/search?q=particle+board&tbm=isch&tbo=u&source=univ&sa=X&ei=86GbUqKrH6q5igLJ7YGQBg&sqi=2&ved=0CEUQsAQ&biw=1348&bih=742

 

Similar but different.

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Particleboard in the Uk is commonly known as chipboard and is widely used as melamine faced panels for furniture, when wet it will turn into something like soggy weetabix or cornflakes. Another common material is Hardboard usually as 1/8 or 3 mm thick dark brown smooth sided on one side and textured on the other, this is pretty useless unless its for simple backing boards in picture frames etc its just too soft for anything structural.

 

In Europe and the UK MDF is commonly available in 3 grades - light brown is a standard grade. Green  is moisture resistant, Pink is a fire resistant grade. All are very common in the joinery trade in the UK and subject to veneering and CNC processing.

 

Norman

Edited by normanh
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