POLYCARBONATE CLEAR 1/2" thick 12" x 24"

Description

<
About Me
POLYCARBONATE CLEAR 1/2" thick 12" x 24"
Material:
POLYCARBONATE
Color:
CLEAR
Size:
1/2" x 12" x 24"
Quantity Available:
3
Weight:
6 LBS
POLYCARBONATE (Tuffak, Makrolon®, Lexan®, Zelux®)
Polycarbonate is a tough, dimensionally stable, transparent thermoplastic that has many applications which demand high performance properties. This versatile thermoplastic maintains its properties over a wide range of temperatures, from -40"F to 280"F. It is available in three types: machine grade; window and glass-filled. It is the highest impact of any Thermoplastic, transparent up to 2" in special grades, outstanding dimensional and thermal stability, exceptional machinability, stain resistant and non-toxic with low water absorption.
Machine Grade is relatively stress free to permit the most demanding machining. It is also available in glass-filled. This polycarbonate is perfect for high performance uses in tough applications over a broad temperature range.
Window Grade is optically clear, providing total luminous transmittance and very low haze factor. The high impact strength makes it resistant to repeated blows, shattering and spalling.
Glass Filled
Glass-reinforced polycarbonate is finding principal applications in designs where metals, particularly die-cast aluminum and zinc, are commonly used. The coefficient of thermal expansion is reduced by nearly 75%, thus equaling that of some metals. While glass-reinforced has less impact strength than standard grades, it is still tougher and more impact resistant than most other plastics and die cast aluminum.
ADVANTAGES TO POLYCARBONATE
Impact strength
Unnotched polycarbonate is virtually unbreakable, making it extremely safe in areas where parts may be exposed to impact. When exposed to repeated heavy blow, the material tends to cold form rather than shatter.
Electrical
Polycarbonate is excellent for electrical applications, because of its high dielectric strength and high volume resistivity which decreases only slightly as temperature or humidity is increased.
Machinability
Parts can be easily machined from standard metal working tools. No special tools are needed, and finished parts can be polished to a high gloss. Water or water-soluble cutting oils should be used when machining polycarbonate, since some standard cutting oils will attack the material. Polycarbonate can be machined on standard metalworking or woodworking equipment. Its unique properties permit it to be machined without chipping, splitting, or breaking.
Annealing
Polycarbonate slab (Zelux) has been stressed relieved using Liquo-Temp annealing process. In some instances where extensive machining is required, a secondary annealing of semi-finished parts is highly recommended. Secondary annealing can be accomplished by heating parts at 250"F in a desiccated air circulating oven for one hour per one inch of thickness. After heating, the oven should be turned off and allowed to cool to room temperature spontaneously.
Bonding
Polycarbonate can be mechanically bonded by standard methods. It can also be cemented by using a solvent such as methylene chloride or adhesives such as epoxy, urethane and silicone. Polycarbonate and also be ultrasonically or vibrationally welded.
Removing paint or other materials
Fresh paint may be removed by rubbing lightly with a cleaning material such as isopropyl alcohol, or VM-P grade naptha. Then the sheet should be washed immediately with a mild soap or detergent in warm water, and rinsed thoroughly with clean water. Grease and glazing compound may similarly be removed from the surface with the above mentioned cleaning materials. Weathered paint may be lifted off the sheet with masking tape. Razor blades or other sharp scraping tools should never be used.
MORE ADVANTAGES TO POLYCARBONATE
Formability
Standard polycarbonate sheet is not heat formable; however, formable sheet is available on a custom basis. Standard Lexan polycarbonate sheet can be heat formed with proper pre-drying. Lexan sheets up to 114" may also be cold formed under special conditions.
Cleaning
Kleenmaster Brillianize may be used. (Also see Novus) Products such as abrasive or highly akaline cleaners, acetone, carbon tetrachloride, benzene or leaded gasoline should not be used, and the sheet should not be cleaned in hot sun or at high temperatures.
Scratch Removal
Novus # 1 , # 2, and # 3 Plasti-Polish Scratch Remover is often all that is required to subdue hairline scratches and minor abrasions. Any polish, however, should be tested first on a sample area of the polycarbonate sheet.
Decorating
Polycarbonate products will accept painting, printing, or vacuum metalizing as decorating methods.
UV Stabilization
Natural and Black Machine grade and Window grade are UV stabilized. Polycarbonate rod, machine grade, is not UV stabilized, but is available on custom quotation.
APPLICATIONS
Lenses
High temperature and pressure windows
Face shields
Industrial equipment and housing components
Medical equipment components
Instrument components
Electrical insulators and connectors
Aircraft & Missile components
Portholes in pressure chambers
Jet pump impellers and diffusers
Automotive parts
Card guides
Assembly line cogs
MATERIAL AVAILABLE
Machine Grade
(not recommended for "see-through" applications).
Clear or Black
Unmodified - 3/8" to 4" thick
Glass-Filled* - 1/8" to 4" thick
49" x 97" sheet up to 2" thick
Window Grade
(recommended for "see-through" applications).
Unmodified -112" to 2" thick
Glass-filled - not available
49" x 97" sheet up to 2" thick
Custom Sheet
Flame retardant
FDA/Medical grade polycarbonate is approved for contact with wet and dry food applications and meets US. Pharmacopoeia regulations.
Premium optical grade sheet
Colors
Rod and Tube
Natural, black and glass filled formulations.
PRODUCT DESCRIPTION PRIMARY SPECIFICATION
Polycarbonate, Natural and Black ASTM D-3935 PC110B34720
Polycarbonate, 20% Glass-filled ASTM D-3935 PC110G20A33230
AGENCY APPROVALS OR LISTING : FDA, USP
BASE RESINS TRADE NAMES : Lexan®
MECHANICAL PROPERTIES:
Specific gravity (ASTM D 792) : 1.20
Tensile strength, Ultimate (ASTM D 638) : 9,000 p.s.i.
Elongation at break (ASTM D 638) : 130%
Tensile modulus (ASTM D 638) : 3.1x10~5 p.s.i.
Rockwell hardness (ASTM D 785) : R118
Impact strength (73° F) (ASTM D 256) (notched) : 17.0 ft-lb/inch
Flexural strength (ASTM D 790) : 14,200 p.s.i.
Flexural modulus (ASTM D 790) : 3.4x 10~5 p.s.i.
Wear factor against steel 40 psi 50fpm : 2500x10~10
Coefficient of friction 40psi 50fpm : 0.38 Dynamic
THERMAL PROPERTIES:
Melting point : 310° F
Heat deflection at 66 psi (ASTM D 648) : 285° F
Heat deflection at 264 psi (ASTM D 648) : 270° F
Maximum serving temperature for short term : 275° F
Maximum serving temperature for long term : 240° F
Thermal conductivity (ASTM C 177) : 1.35 Btu-inch/hr-ft~2- ° F
Specific heat : 0.30 Btu/lb- ° F
Coefficient of linear thermal expansion (ASTM D 696) : 3.7x10~5
Applicable temperature range for thermal expansion : 0-200° F
ELECTRICAL PROPERTIES:
Dielectric constant at 60Hz (ASTM D 150) (73° F, 50% RH) : 3.2
Dissipation factor at 60Hz (ASTM D 150) (73° F) : 0.001
Volume resistivity (ASTM D 257) : 10~17 ohm-cm
Dielectric strength (ASTM D 149) : 380 v/MIL
MISCELLANEOUS:
Water absorption - 24 hours (ASTM D 570) : 0.15%
Water absorption - saturation (ASTM D 570) : 0.35%
Density (ASTM D 792) : 0.0434 lb/inch~3
Flammability (UL 94) : V-2
Weathering Resistance : Limited resistance (UV Sensitive)
Please note all sizes listed on these ebays are +- 1/8"
Keep in mind that we have a complete machine shop with cnc router, mill and laser. If you have custom plastic parts made we would like to quote you on those. Please send over any drawings or files for a quote.
We are also a full line plastic supply house so if you have a need for any plastic sheet rod or tube drop us a line we would love to quote you on any of your plastic needs.
Thanks for taking a look at our ebay auction
NOTE: Please note that these will ship UPS ground and buyer pays actual shipping charge
Please note that payment for this will be with Paypal. Winning bidder, please email address upon end of auction so that we can begin to process your order.
Please note that we do combine shipments to help save on shipping.Thank You.
On Feb-20-11 at 16:43:57 PST, seller added the following information: