Platform Mount or hinge

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Trinity
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Platform Mount or hinge

Post by Trinity »

I've a 700 wide x 500 deep watercolour to frame, x 3 off.
They're on very heavy paper, relativity weighty, and I'm wondering what might be considered the best way to mount. 2 t hinges look a bit light and a platform mount, though adding to the thickness is an alternative.
It's a double mount.
Any thoughts
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David McCormack
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Re: Platform Mount or hinge

Post by David McCormack »

I'd go for paper hinges no problem, but I would only adhere the hinges with a wet paste which would be freshly cooked wheat starch paste for me.

I'd also use x4 hinges along the top.

BTW, a platform mount shouldn't add extra thickness if you normally use an undermount for attaching art? :?
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Re: Platform Mount or hinge

Post by Rainbow »

I might think about using V mount strips, and hopefully the experts will say whether these would be suitable.
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Re: Platform Mount or hinge

Post by David McCormack »

V strips are a great conservation method as no adhesives come into contact with the art. But I would still prefer to use well adhered hinges for heavy paper of the size Trinity is talking about. I often make my own V paper supports just 20 mm wide and place either side of the bottom corners of heavy art as a back up to the hinges. These bottom corner supports also help reduce any stress put on the top hinges if the frame is ever stored the wrong way i.e. on its side.
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Re: Platform Mount or hinge

Post by poliopete »

One more method for heavy art work for you to consider would be to use pass through hinges. I have found them to be strong and secure.

A good tip picked up from this forum is to make the slits in the supporting mountboard with a bevelled chisel.

Good luck with whatever method you decide to use :D
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Re: Platform Mount or hinge

Post by Trinity »

In the end I used a platform mount for these and they worked out great thanks. I've no wheat starch stuff anyway, so that was a none starter for me.
And yes, of course, the package is no thicker. I'd got my platforms and sinks mixed up, but we don't want to go back to Aug 2016 again do we.
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Re: Platform Mount or hinge

Post by Trinity »

i just wondered what tape you uses when you tape the fall out back into position. I used p90 however the curve on the artwork card ( it had been rolled up and still retained "spring) tended it to push it of
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Re: Platform Mount or hinge

Post by David McCormack »

I use P90 PLUS for taping the platform back in, but with an unruly artwork as you describe I don't think even P90 PLUS would be strong enough. I guess you could try gummed tape but it would need weighting down as it dries.

If you burnish the P90 well enough and leave overnight with weights (books work well) then it should/could hold long enough for you to get your back-board pinned in place.

Sorry can't be of more help :(
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Re: Platform Mount or hinge

Post by Trinity »

Thanks, I did in fact use gummed tape on one of them, which was more unruly than the others.
Helped me no end this thread.
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Re: Platform Mount or hinge

Post by Ed209 »

What’s a platform mount? Not come across this before


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Re: Platform Mount or hinge

Post by David McCormack »

It's a method of mounting that has no adhesive in contact with the art, similar to, but not to be confused with, a sink mount.

Have a look here: https://www.theframersforum.com/viewtop ... 98&p=72941

And here: https://www.theframersforum.com/viewtop ... 91#p115472
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