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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Carpentry Questions >> Laminating MDF https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1235306870 Message started by greg on Feb 22^nd, 2009, 12:47pm

Title: Laminating MDF
Post by greg on Feb 22^nd, 2009, 12:47pm

I need to glue some 18mm MDF together to form 36mm.

I plan to use an ordinary PVA glue, should I glue both surfaces or just the one?

Cheers

Title: Re: Laminating MDF
Post by Zambezi on Feb 22^nd, 2009, 12:51pm

Just one will do, if you put too much glue on (by putting it on both sides) it will be more difficult to get them clamped together properly and may take longer to dry.

Title: Re: Laminating MDF
Post by greg on Feb 22^nd, 2009, 1:13pm

Cheers Zambezi
i

Title: Re: Laminating MDF
Post by woodsmith on Feb 22^nd, 2009, 1:19pm

I usually do both surfaces, MDF can be so absorbent that it dries in patches before you can clamp up. If you have a large surface to do use a big brush 'cause you need to be quick.

Title: Re: Laminating MDF
Post by greg on Feb 22^nd, 2009, 5:43pm

Thanks Keith,

Was planning to use a mini roller, will be 1200 x 300 in size

Title: Re: Laminating MDF
Post by woodsmith on Feb 23^rd, 2009, 7:14am

greg even at that size it can be hard to clamp up evenly over the whole board, unless you have a vacuum press that is?

I usually put a few screws in where it is awkward to clamp, then take them out once the glue has set

and make sure it is absolutely flat as it dries ;)

Title: Re: Laminating MDF
Post by Twobarrows on Feb 23^rd, 2009, 5:32pm

Ive done this before for shelves for the garage (which worked very well by the way :) ) All I did was roll PVA on both parts, slap them togetther then pin with a few dozen small brads from a nail gun to hold whilst it set. Worked great. Cheers......