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C.C.Steven and Associates, 1363 Donlon Street, Ventura, CA  93003 since 1978  

ph:  805-658-0207          fax:  805-658-2789            static@ccsteven.com

PC-350 Polycarbonate (Bending Grade)
Static Dissipative Plastic

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

Per Sheet Price

SPC350-6

3mm (1/8”)

$ 430.00

SPC350-4

4.5mm (3/16”)

$ 520.00

SPC350-3

6mm (1/4”)

$ 605.00

SPC350-2

9mm (3/8”)

$ 835.00

SPC350-1

12mm (1/2”)

$ 955.00

The dash number in the part number indicates full carton sheet quantities per size.  Orders of less than one full carton are subject to a $ 50.00 packaging and handling charge.

Other sizes and  thicknesses available upon request.

Made in USA

Questions? Ready to order? E-mail us or 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

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.

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