Description PC-350 Polycarbonate is a plastic sheet product designed to control static electricity for a wide range of end uses. It is a premium quality polycarbonate sheet which has been surfaced with SciCron Technologies proprietary, clear, C-350 static dissipative surfacing. This unique technology prevents charge generation on the sheet surfaces, thereby controlling particulate attraction and preventing electrostatic discharge (ESD) events. This performance is permanent and totally independent of humidity. PC-350 Polycarbonate offers exceptional design versatility since it fabricates simply, is light in weight and is available in large sheet sizes. It also exhibits excellent clarity and chemical resistance, plus superior impact resistance, flame spread properties, and bending characteristics.
Applications PC-350 Polycarbonate resists tribocharging under all circumstances and cannot generate a charge when properly grounded. This makes it ideal for use in manufacturing and assembly operations for charge sensitive electronic components where it can help prevent both immediate and latent ESD caused defects. Since it resists charge build-up it does not attract contaminants, so it can also help prevent contamination-related rejects in ultra-clean manufacturing operations. Consequently, it is suitable for use in the semiconductor, electronic, and micro-manufacturing industries. Typical applications include contoured panels and fabricated items which require heat bending, such as; guards, covers, windows, doors, and access panels for electronic equipment, assembly machines and instruments; conveyor line covers and shields; and equipment enclosures. The product also has many general industrial uses, including protection for static charge sensitive manufacturing devices and control of spark discharge in explosive environments.
Fabrication PC-350 Polycarbonate is easily fabricated into a variety of flat and bent configurations using the same equipment and fabrication techniques generally employed with unsurfaced polycarbonate sheet products. This product is designed to accommodate heat bending, however, care must be taken to avoid applying too much heat to prevent damage to the C-350 surface. When solvent welding, it is not necessary to remove the C-350 surface to achieve a good bond if the welding adhesive contains some dissolved plastic. For more information on fabrication refer to SciCron Technologies Technical Information Bulletin No. SP-02.
Features and Benefits Cannot be tribocharged when properly grounded – Prevents build-up of static charge and accumulation of harmful contamination. Electrostatic decay in less than 0.05 second per Federal Test Standard 101C, Method 4046.1 – Results in rapid static dissipation without arcing. Surface resistivity of 106 – 108 ohms per square – Provides for ESD control. Permanence in static dissipation performance – Avoids cost of application of temporary topical anti-stats. Humidity independent static charge control – Avoids inconvenience of maintaining high levels of humidity and damage caused by such humidity. Advanced technology, uniform surface treatment – Avoids conductive discontinuities (charged “hot spots”) often found with non-uniform temporary topical anti-stats. Superior impact resistance – Provides exceptional shatter resistance for safety. Superior flame spread properties – Provides additional protection for equipment in a fire. Superior fabrication and bending characteristics – Provides maximum versatility and workability during part fabrication. Superior chemical resistance – Reduces risk of solvent or chemical surface damage. Excellent clarity – Premium optical quality polycarbonate with clear C-350 surface minimizes visible distortion.
Availability
PC-350 Polycarbonate is available in clear and transparent gray and bronze tints. Other colors are available by special order.
Standard Dimensions (Nominal)
Standard Sheet Size: 48″ x 96″
Part #
Thickness
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SPC350-6
3mm (1/8”)
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SPC350-4
4.5mm (3/16”)
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SPC350-3
6mm (1/4”)
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SPC350-2
9.5mm (3/8”)
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SPC350-1
12mm (1/2”)
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Other sizes and thicknesses available upon request.Made in USA
Questions? Ready to order? call
C.C. Steven at 805-658-0207.
PC-350 Polycarbonate (Bending Grade)
Typical Physical Properties (Typical but not guaranteed values for 0.25 inch material)
property
test method
units
PC-350
PHYSICAL
Specific Gravity
ASTM D-792
—
1.20
Pencil Hardness
ASTM D-3363
Hardness Scale
2B
MECHANICAL
Tensile Strength–Ultimate
ASTM D-638
psi
9,500
Tensile Strength–Elongation
ASTM D-638
%
100
Tensile Modulus
ASTM D-638
psi
340,000
Flexural Strength
ASTM D-790
psi
13,500
Flexural Modulus
ASTM D-790
psi
340,000
Compressive Strength
ASTM D-695
psi
12,500
Izod Impact Strength (milled notch)
ASTM D-256
ft-lb/inch of notch
16
THERMAL
Deflection Temperature (264 psi load)
ASTM D-648
oF
270
Vicat Softening Point
ASTM D-1525
of
310
Maximum Continuous Service Temperature
—
of
180
Coefficient of Thermal Expansion
ASTM D-696
in/in/of
3.8 x 10-5
Coefficient of Thermal Conductivity
Cenco-Fitch
BTU*in/hr*ft2*oF
1.35
FLAMMABILITY
Horizontal Burn (Flame Spread)
ASTM D-635
inch/min
Less than 1.0
UL94 Rating
UL 94
UL Classification
V-2 < 0.236 in.
V-0 0.236 in.
OPTICAL
3mm Transparent Clear Transmittance–Total
ASTM D-1003
%
74
Haze
ASTM D-1003
%
Less than 3.0
ELECTRICAL
Surface Resistivity
ASTM D-257
ohms/sq
106-108
Surface Resistance
EOS/ESD S11.11
ohms
105-107
Electrostatic Decay
FTS 101C Method 4046.1*
sec
Less than 0.05
* Federal Test Standard 101C, Method 4046.1 as described in EIA-541, Appendix F, Measurement of Electrostatic Decay Properties of Dissipative Planar Materials
Chemical Resistance ASTM D-543
Samples immersed in the specified chemicals for 24 hours at room temperature and then visually examined
Chemical
Surface Attack
Visual Evaluation
Deionized Water
None
Clear
30% Sodium Hydroxide
None
Cloudy
30% Sulfuric Acid
None
Clear
30% Nitric Acid
Some pitting
Cloudy
48% Hydrofluoric Acid
Pitted coating
Clear
Methanol
Slight pitting
Clear
Ethanol
None
Clear
Isopropyl Alcohol
None
Clear
Acetone
Severe pitting
Opaque
Methylene Chloride
Sample dissolved
Sample dissolved
Light Transmission Spectral Analysis
PRECAUTIONS:
1. Polycarbonate plastic is a combustible thermoplastic. Avoid exposure to flame and excessive heat. Observe fire precautions appropriate for comparable forms of wood and paper.
2. For building applications, comply with applicable code regulations.
3. Clean with soap and water. Do not use abrasives. Avoid inappropriate contact with solvents.
