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What does the team think?

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What does the team think?

Postby 9fingers » 12 Mar 2019, 14:14

I've been making some picture frames to show some prints ready mounted on light card behind glass.
I'm using some medium quality hardboard ( not oil tempered stuff) in the back of the frames.

The largest is about 550 x 440 mm and I wondered about treating the hardboard to keep it flat. Usually one would seal both faces but I wondered about leaving the surface that faces the back of the picture bare so that it there was any movement, it would act to press the picture towards the glass.

Assuming the textured surface would be more absorbent to moisture, I could put that facing inwards bare and seal the visible smooth face with some thin varnish or similar.

Anyone tried this method to exploit assymetric treatment of the board warping to order? Do you think this would be a good plan?

TIA

Bob
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Re: What does the team think?

Postby old » 12 Mar 2019, 14:44

My wife takes lots of photos and they stay in the frames 2-3 years we do what you are proposing but have non reflective glass and use a point firing 'stapler' to secure the board in the rebate if you need more longevity you can get tape to seal back to frame from( LION framing )
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Re: What does the team think?

Postby 9fingers » 12 Mar 2019, 14:58

old wrote:My wife takes lots of photos and they stay in the frames 2-3 years we do what you are proposing but have non reflective glass and use a point firing 'stapler' to secure the board in the rebate if you need more longevity you can get tape to seal back to frame from( LION framing )


Thanks Chris,

I've also got a point firing stapler too.

I was mainly wondering if the assymetry of the hardboard treatment would have a useful effect.

Bob
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Re: What does the team think?

Postby Rod » 12 Mar 2019, 16:11

I’ve had lots of pictures professionally framed and the backing has never been treated. If the picture is valuable then an acid free backing paper is used and any mount to be acid free too.

None of the frames and backing have ever warped.

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Re: What does the team think?

Postby Malc2098 » 12 Mar 2019, 16:17

I've used 3mm MDF. Stays flat.
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Re: What does the team think?

Postby 9fingers » 12 Mar 2019, 16:33

Malc2098 wrote:I've used 3mm MDF. Stays flat.


Thanks Malc
I was going to buy some 3mm mdf from the framing place I get my glass from but realised I had enough leftover hardboard to do the job.

Bob
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Re: What does the team think?

Postby Rod » 12 Mar 2019, 17:12

I’ve had one of these for years

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Re: What does the team think?

Postby Malc2098 » 12 Mar 2019, 17:46

9fingers wrote:
Malc2098 wrote:I've used 3mm MDF. Stays flat.


Thanks Malc
I was going to buy some 3mm mdf from the framing place I get my glass from but realised I had enough leftover hardboard to do the job.

Bob


I used to sell Royal Board in the 60s. Can't find it now. In fact I used to unload a lorry load of 20 tons by hand every Monday morning!

I only use hardboard now in two pieces for picking up the leaves in the garden, and MDF for backing pictures!
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Re: What does the team think?

Postby Woodbloke » 12 Mar 2019, 17:58

Bob, I've replied to this and stuck my oar in somewhere else - Rob
I no longer work for Axminster Tools & Machinery.
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Re: What does the team think?

Postby RogerS » 12 Mar 2019, 22:54

One of these ?

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