(12) onto one surface of a flexible polycarbonate film (14) via a drum casting technique to yield a flexible, abrasion and chemical resistant hardcoated film; and (ii) laminating the hardcoated film onto a thick rigid polycarbonate substrate (60) by an on-line ultraviolet radiation lamination...
The process involves (i) ultraviolet radiation curing an acrylic coating (12) onto one surface of a flexible polycarbonate film (14) via a drum casting technique to yield a flexible, abrasion and chemical resistant hardcoated film; and (ii) laminating the hardcoated film onto a thick rigid ...
Keep the polycarbonate sheet material's protective plastic cover intact. Don't remove the thin clear plastic from the sheet material until you're ready to install the sheet into place. The thin plastic will protect the sheet from mechanical damage that may occur during the cutting process. 2. ...
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Tuffak or Cyrolon. Bullet-resistant glass is between 7 millimeters and 75 millimeters in thickness. A bullet fired at a sheet of bullet-resistant glass will pierce the outside layer of the glass, but the layered polycarbonate-glass material is able to absorb the bullet's energy and stop it...
Glass transition only applies to amorphous materials: materials that don’t have a crystalline structure (such as polycarbonate and polystyrene), as opposed to crystalline polymers like nylon and polypropylene. When an amorphous material gets warm, it goes from being brittle to being rubbery, and th...
The windows are made from virtually unbreakable polycarbonate sheets. The front and side windows were cut from 0.118 in. clear polycarbonate sheets. The upper windows are made from 1/4 in. clear multiwall polycarbonate sheet panels. I used a 7-1/4″ 40-tooth circular saw blade to make the...
Note that most polycarbonate and aluminum / magnesium alloy modern bodies have excellent structural integrity (bodies are tested to handle weights that are multiple times that of the heaviest lenses) and while we have had cracked lens hoods when those were kept extended, facing down (see how to...
Hi Carolyn – to paint the polycarbonate (mostly acrylic plastic) you need to prime them first with a good gripping style primer and then paint. Ask at your paint store for a “bonding or gripping primer”. Let it cure for a few days before brushing on paint. Light coats are better tha...
and winter to extend the harvest by weeks or months, depending on the crop. Kale is very cold hardy and we harvest all winter long from our polycarbonate and wood-framed cold frames. Cold frames typically have a low profile and I use them to grow compact varieties like dwarf blue curled ...