Kapton Film
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 KAPTON FILM 005x12 X10 FT WIDE POLYIMIDE FILM 11849 4  US $100.00
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 KAPTON FILM 005x24x48 POLYIMIDE FILM 5250 US $89.00
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 KAPTON FILM 003x18X96 DUPONT TYPE HN POLYIMIDE 5582 11 US $85.00
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 KAPTON FILM 002x10875x24 FEET POLYIMIDE YELLOW 5332MK US $85.00
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 KAPTON FILM 002x24x96 POLYIMIDE FILM 5251 25 US $80.00
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 KAPTON FILM 002x12x24 FT DUPONT VN LOW SHRINK POLYIMIDE FILM 15043 10 US $75.00
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 KAPTON FILM 003x3x4 DUPONT HN POLYIMIDE 5356 X US $72.00
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 KAPTON FILM 002x115X120 DUPONT TYPE HN 11798 US $65.00
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 KAPTON FILM 003x12X120 POLYIMIDE 11819 US $62.00
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 KAPTON FILM 002 16 SQFT POLYIMIDE FILM 5333 US $60.00
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 KAPTON FILM 001x125X120 DUPONT TYPE HN US $60.00
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 KAPTON FILM 003x12x96 POLYIMIDE FILM 5249 21 US $50.00
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 KAPTON FILM 003x24x48 POLYIMIDE SHEET 5355x 4 US $48.00
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 KAPTON FILM 002x10875x96 POLYIMIDE FILM 5350 3 US $47.50
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 KAPTON FILM 001x24X96 DUPONT HN TYPE POLYIMIDE HIGH TEMP 5584 11 US $39.00
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 KAPTON FILM 002x10875X120 DUPONT HN YELLOW 11817X US $35.00
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 KAPTON FILM 005x3x8 ALUMINUM FIBERGLASS 5434 US $30.00
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 KAPTON FILM 002x26x48 DUPONT HN POLYIMIDE SHEET 15189 200 US $29.00
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 KAPTON FILM 002x24x48 DUPONT HN POLYIMIDE SHEET 5248 400 US $27.00
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 Dupont Type KAPTON HN 200 Polyimide FILM 0002x32X80 50 micron thick US $24.97
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How to Adjust Laptop Keyboard Sensitivity
How can you adjust the sensitivity of the keys on a laptop keyboard? Or you're really frustrated by your new laptop like an old typewriter. Is there any way to adjust keyboard sensitivity, or what? Don't worry, this guide will help you on the go.
Windows controls how long you must hold down a key before it repeats, along with the key repeat speed. If characters repeat too quickly or slowly when you hold down a key, open the Control Panel and then open the Keyboard entry. Choose the Speed tab and move the sliders for Repeat Delay and Repeat Rate until you've adjusted them to your style. The Repeat Delay slider determines how long you must hold down a key before it begins repeating, and the Repeat Rate determines how quickly repeated characters appear on-screen. Click Apply when you're finished.
Besides, the design of some notebooks allows your hand to graze over the touchpad for the mouse, causing it to pick up the mouse movement and sometimes sacrifice the key stroke.
The other possibility is that either something is under the keys, causing them to not to make the proper contact when pressed. Get a can of compressed air (Wal-mart sells these in the computer section) and blow it in short bursts along each row of keys.
Then, there could be something corrupted in the keyboard driver. This part assumes you are using Windows XP. Click on Start and then right-click on My Computer. Select properties. Then select the Hardware tab and select Device Manager. Once in Device Manager, click on the + next to keyboards. Likely there will be only one option, but if there is more than one, select the one for you keyboard and right-click on it. Click on Uninstall. Then reboot your computer. As the computer restarts, it will recognize the keyboard and reinstall the driver, but hopefully this time it won't be corrupted.
Finally, sometimes your laptop keyboard could be more sensitive. Most keyboards these days, especially on laptops use flexible membranes as their contacts. There are two primary methods of manufacture, one utilizes a standard PC board and a rubber mat with carbon pads in the rubber. The other utilizes a flexible plastic (like DuPonts Kapton) with a layer of contacts, a spacer, and another layer of contacts. Both then put the plastic frame for the keys on top. The keys have small springs which just keep the key up, not affecting sensitivity and a shaft down the middle. The shaft then presses on the rubber pad or flexible film beneath. The actual sensitivity is based on the durometer (hardness) of the rubber or the thickness of the Kapton.
The only practical solutions would be:
1. Replace the keyboard. A new keyboard is usualy less sensitive though.
2. Tighten the fasteners inside. If the laptop is an older one you may try opening the unit up and tightening the screws that hold the keyboard up to the key frame.
Other than that you are looking at a custom designed short run membrane. It is cheaper to get a new laptop keyboard in that case. Papatek.com compatible laptop keyboard is your good choice.
About the Author
Papatek Inc. locates in Santa Clara CA of USA, which is an important branch of Sunvalleytek International Inc.
Thin Film cleaning machine (for Kapton, polyester, polycarbonate etc)
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