Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems.

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Default Useful high temperature material

Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap


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Default Useful high temperature material

N_Cook wrote:

Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap


If you're attaching to another plastic material, use your HOT air
soldering tool.. known as "Plastic Welding"




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Default Useful high temperature material

On Feb 6, 10:29*am, "N_Cook" wrote:
Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.


So, if you want to attach it, you're limited to stapling, stitching,
clamping...
Safety pins will work, too.
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Default Useful high temperature material

"N_Cook" wrote in -
september.org:

Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap



aren't those -silicone- baking sheets?
Much of the "non-stick" baking stuff is silicone these days.

--
Jim Yanik
jyanik
at
localnet
dot com
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Default Useful high temperature material

In article ,
says...
Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap


One company I worked for used a product
they referred to as 'kapton tape'. High
temp (withstood soldering irons) and
adhesive backed.

Of course, your def. of 'high temp' might
differ from theirs.

HTH


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Jim Yanik wrote in message
4...
"N_Cook" wrote in -
september.org:

Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed between
PTFE sheet. Unfortunately even puncturing with hundreds of needle holes

I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap



aren't those -silicone- baking sheets?
Much of the "non-stick" baking stuff is silicone these days.

--
Jim Yanik
jyanik
at
localnet
dot com



Nothing rubber about this material. If you've ever heard the sound of kevlar
sails rattling in use on a modern racing yacht , it is that sound if you tap
the material, a metalic sort of sound.

Latest marginal gluing attempt is epoxy after grinding back the ptfe
covering, will see tomorrow, if any sort of adhesion.


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Default Useful high temperature material

N_Cook wrote in message
...
Jim Yanik wrote in message
4...
"N_Cook" wrote in -
september.org:

Don't know the name for it, used in "oven tray liner". Takes high
temperature, does not stretch or tear and is only 0.05mm thick, highly
flexible.
Under a microscope it appears to be woven kevlar fibres squashed

between
PTFE sheet. Unfortunately even puncturing with hundreds of needle

holes
I
cannot find a way of gluing it, even just a lap joint with no forces
involved, tension or shear.
probably same as this
http://www.theptfeshop.com/product.p...ing-tray-liner
Found in local ordinary baking products shop, quite cheap



aren't those -silicone- baking sheets?
Much of the "non-stick" baking stuff is silicone these days.

--
Jim Yanik
jyanik
at
localnet
dot com



Nothing rubber about this material. If you've ever heard the sound of

kevlar
sails rattling in use on a modern racing yacht , it is that sound if you

tap
the material, a metalic sort of sound.

Latest marginal gluing attempt is epoxy after grinding back the ptfe
covering, will see tomorrow, if any sort of adhesion.



shear strength of a test of 12 x 6mm plain lap about 1kg , more than
required for current use, high temp ability not required this time. So
lightly grind back the very thin ptfe coating with a Dremmel disc, on to be
joined faces


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Default Useful high temperature material

wrt last

peel strength , not shear strength


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Default Useful high temperature material

It easily forms into a cylinder of 3mm radius and can go tighter without
cockling


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