Thread: Where to buy Perforated Metal Strips?...

Bunnings or someplace like that??

I have just googled and metalmesh has .5mm in mild steel non gal in half sheets.
Failing that I would be ringing sheet metal shops to see if they use it with a view to buying some offcuts, if available.
What are you using it for for BP? Someone may have an vible alternate.
Correction .4mm half sheets
ref
http://www.metalmesh.com.au/admin/upload/Perfms.pdf

Grahame

Supercheap have something similar in aluminium that the young guys use to modify their grill with

Dear RC,

Originally Posted by .RC.

Bunnings or someplace like that??

I'm a Frayed Knot...


Dear Graham,

Originally Posted by Grahame Collins

What are you using it for for BP? Someone may have an viable alternate.

As a substitute for Paper Tape along a "Recessed Joint" in a Ceiling that hasn't been "Backblocked", and has therefore cracked. I don't want to just use Paper Tape again, because it's already proved unequal to the task...


Dear David,

Originally Posted by David L

Supercheap have something similar in aluminium that the young guys use to modify their grill with

It would probably be either too thick, or not quite strong enough if it was thin (being aluminium), as well as way-too-dear for the quantity I had in mind.

Thanks all the same though Gents
Batpig.

If its only to reinforce a plaster joint flywire works very well.

Check out a builders supply ,there is an aluminium stretched mesh (Diamond pattern)they use for plastering wall ends and other cavities in walls.
I know they use it because I found it in my house when the one of my kids knocked a big lump of plaster off a corner in the hallway.
Don't know what they call it though.

Kev.

Dear Bob,

Originally Posted by echnidna

If its only to reinforce a plaster joint flywire works very well.

Not a bad idea; certainly thin enough, but whatever I put in needs to have a certain amount of "stiffness" in it's own right, without relying on any plaster coating (which is too thin at a joint to add any strength in flexure...)


Dear Kev,

Originally Posted by Woodlee

Check out a builders supply ,there is an aluminium stretched mesh (Diamond pattern)they use for plastering wall ends and other cavities in walls.
I know they use it because I found it in my house when the one of my kids knocked a big lump of plaster off a corner in the hallway.
Don't know what they call it though.
Kev.

I believe they call them "Corner Beads" if they're for Plasterboard, or sometimes "Render Beads" if they're meant for Solid Plastering/Rendering. Going by the ones I used when I re-did my Shower Recess, they've got a couple of things going against them; firstly, they'd be too thick (I've only got about 2mm to play with, and this has got to accommodate two layers of Plaster, plus the metal in the middle...), and secondly, the darn things are usually sold only as angles - which means that you'd have to cut them, and the cutting can sometimes distort the edge enough to make it poke through the very-thin plaster coating. Also, they're not cheap - No Fear!

Many Thanks Gents,
Batpig.

metal flywire is stiff

Originally Posted by Batpig

As a substitute for Paper Tape along a "Recessed Joint" in a Ceiling that hasn't been "Backblocked", and has therefore cracked. I don't want to just use Paper Tape again, because it's already proved unequal to the task...

Use strips of gyprock

Dear Harry,

Originally Posted by Harry72

Use strips of gyprock

Ha! ...the more thing's change, the more they stay the same (as they say...)

Best Wishes,
Batpig.

Hi Batpig,
I would n't give up just yet!

Perhaps if you phoned the Metalmesh crowd and asked them nicely did they sell to any sheet metal crowd near you.
If you can find that out that, all you then need do, is ring this local mob that Metalmesh supplies - on the off chance they have some offcuts (as you only need a little bit ).

Yep! I know its not gal but a bit of cold gal spray will fix that.

Grahame
Never give in and never give up!

Dear Graham,

I've actually already got a price for 100m of guillotined 0.6mm thick strips off a localish outfit that is supplied by MetalMesh's main competitors - the Locker Group. The price of $387 (incl. GST) is not an issue. I've also got a couple of 0.6mm thick samples off them that I've been playing with since last week. I adhered the sample that you can see in the photo in my first post to the edge of a half-sheet of 10mm thick Plasterboard using some Cornice Cement, and after only 5hrs the grip and leverage of the connection was truly formidable. I was able to completely lift one edge of the Plasterboard sheet from the outboard edge of the metal strip in question, even though the "contact patch" was obviously quite small. It was the Plasterboard's paper-coating that eventually let go. I also test-installed another sample strip into a Recessed Joint that I had scraped out in the Ceiling, and there were no real dramas in getting it in up there and neatly overcoated - although 0.4mm gauge would have been a touch easier again, and better able to cope with the typically-incidental flatness of ceilings in general.

My actual main concern is cyclic thermal lateral expansion and contraction eventually fatigueing the Cornice Cement bond in the direction across the strips, over an extended period of time. The 0.6mm thick samples that I possess have far in excess of the "stiffness" that I require from the strips. 0.4 or possibly even 0.2mm strips would still have sufficient stiffness and strength, but with one major advantage over the thicker 0.6mm versions; namely the development of less thermal expansion "Force". ie. Two pieces of metal that are of the same type and length, will expand by the same measurable distance for any given identical increase in temperature, regardless of differing thicknesses. However, clamp the two pieces into two separate jigs of some sort that each measure the compressive force required to resist the said thermal expansion, and you will find that the thicker piece of metal develops a greater force than the thinner piece (for the same increase in temperature), in direct proportion to their two respective thicknesses. Thinner would therefore be better from the bond-fatigue point of view for the particular task at hand.

The 0.6mm product has the absolute feel of "overkill" - in the way of stiffness - about it. I would feel much more comfortable about the bond-fatigue issue with thinner strips, that I am quite certain my tinkering would show to still have ample stiffness for the job. Galvanised is also a definite preference.

I'm definitely still looking at the moment, but I'll probably start plastering the joints in question from Thursday onwards using a back-up plan if nothing in the way of thinner metal strips pops up in the meantime...

Many Thanks,
Batpig.

Hi Batpig,
Could you tackle the problem by cutting the plaster joint out to 10-15mm wide then use an off cut of plaster board 150mm wide x whatever length you need drill some holes down the middle and put some heavy sting though them. Butter it up with liquid nails slide it into the roof and use the string to pull it up tight against the ceiling. After it has dried fill the gap with plaster then tape as usual.
Dave