- Polycarbonate is a durable plastic that maintains its toughness, dimensional stability, and excellent impact resistance in a wide range of temperatures
- Transparent clear polycarbonate is often used as a lightweight, impact-resistant alternative to glass
- Meets ASTM D3935 specifications
- Standard tolerance
Polycarbonate (PC) Sheet, Transparent Clear, Standard Tolerance, ASTM D3935
|Price:||$2.95 - $36.80|
|Specification Met||ASTM D3935|
|Backing Type||No Backing|
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The transparent clear polycarbonate sheet has a standard tolerance and meets American Society for Testing and Materials ASTM D3935 specifications. Polycarbonate (PC) is a durable plastic that maintains its toughness, dimensional stability, and excellent impact resistance in a wide range of temperatures. Typically, the material maintains its electrical insulating properties and resists creep in extreme temperatures and humid environments.
Plastic refers to a group of synthetic or semi-synthetic materials that have been engineered to achieve specific properties. The most notable characteristics of plastics are its low weight, machinability, corrosion resistance, and typically good thermal and electrical insulating properties. Certain plastic grades also offer optical transparency similar to glass, low-friction or self-lubricating surfaces, and exceptional impact resistance. Depending on their properties, certain plastic grades can be used as alternatives to metal, glass, and ceramic. Unlike metal, plastic may experience creep, which is deformation caused by longtime exposure to a constant load.
Tensile strength, used to indicate the material’s overall strength, is the peak stress it can withstand before it breaks. Corrosion resistance describes the material's ability to prevent deterioration caused by atmosphere, moisture, or other medium. Wear resistance indicates the ability to prevent surface damage caused by contact with other surfaces. Toughness describes the material's ability to absorb energy before breaking, while hardness (commonly measured as indentation hardness) describes its resistance to permanent surface deformation. Impact resistance is the measure of a material’s ability to absorb a shock of energy before breaking.
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I have been using this as a 3D print bed running almost non stop since I got it. We have printed a fallout 4 T45 Helmet, A combat shotgun and a 10mm pistol also from fallout 4 and a bunch of other stuff. I have done prints out to almost 8 hours. They have all been PLA so far so no report yet on ABS but the PLA has been flawless. Sticks when it should and comes off easy. It is easy to cleanoff and so far the material hasn't even scratched . You have to play with temps to get it right. I normally used 55c bed temps for printing PLA on blue tape. With this stuff 55C stick so hard I can't get it all off. I tried 35 C and it didn;t stick well enough. 45C seems about right BUT if you are printing small or tall things with a small footprint then add a brim and maybe a raft if the item is very tall. That way it still comes off pretty easy but sticks well enough. 5 degrees either way seems to matter a lot so if you try it, play with temps before you decide. For me, there's no going back for PLA. I just bought 2 more pieces to keep handy just in case the original piece breaks.
I finally tried ABS. It sticks so well with 80C beds that it basically ruins the bed. I had extra so I cut a new one. Be careful and do tests starting at low bed temps if you do ABS cause I have not found a magic number that works yet. If you make a mistake and get the temp too high the bed piece is probably ruined. Still love it for PLA though.
So I decided to try something stronger than glass for exterior doors that have windows in them. So as an experiment, I tried using Polycarbonate instead of glass.
So far I have only replaced one pane in the back door to see how it would work. I have waited until after winter to write about the results because I wanted to see how the thermal characteristics were as well as clarity and strength.
I am happy to say that it was a complete success. The pane I replaced is clearer than the glass pane above it. It insulates better, keeping out cold in winter and heat in summer. No scratching. It is much stronger than the glass pane.
Now I plan to replace all exterior door windows with Polycarbonate sheets this spring. No need to worry about break ins by shattering the glass. Currently all exterior doors have deadlocks mounted at the bottom of the door so that if the window is shattered, a thief still can't reach to unlock the door, they can only break out all window panes and crawl in through the opening.
With Polycarbonate windows, they won't be able to do this unless they have a sledge hammer since Polycarbonate is anywhere from 10 to 20 times stronger than glass. It is bulletproof if tick enough. I am not concerned with that since I live in a quiet neighborhood and any gunfire would bring the police in minutes.
The cost is relatively low unless you are replacing full sized windows instead of panes.
Sizing is easy since cutting Polycarbonate is not as hard as cutting glass and not fragile so no fear of accidentally shattering it while cutting and trimming.
The only negative I have found is that there are not enough varieties of sizes available that match up with standard window sizes so there is more cutting and trimming than there should be. If more people decide to go with Polycarbonate windows instead of plate glass, perhaps the industry will make more window sized pieces available for sale.
Machined very nicely - see photo.