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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

PVC-350 (Bending Grade)
Static Dissipative Plastic


Description
PVC-350
is a plastic sheet product designed to control static  electricity for a wide range of end uses. It is a high quality polyvinyl  chloride 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. PVC-350 offers  exceptional design versatility since it fabricates simply, is light in weight  and is available in large sheet sizes. It also exhibits excellent chemical resistance, plus superior flame spread and bending characteristics.

Applications
PVC-350
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; covers, windows, doors, and access panels for electronic  equipment, machines and instruments; fabricated desiccators, cabinets, and boxes  with heat bent parts; and formed process 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
PVC-350
is easily fabricated into a variety of flat and bent configurations using the same equipment and fabrication techniques generally employed with unsurfaced PVC 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 buildup 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 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.

Availability
PVC-350
is available in clear (slight blue tint )

Standard Dimensions (Nominal)
Standard Sheet Size: 46" x 94"
Thickness:
3mm (1/8"),
4.5mm (3/16"),
6mm  (1/4"),
9mm (3/8"),

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.


PVC-350 (Bending Grade)
Typical Physical Properties (Typical but not guaranteed values for 0.25  inch material)

property

test method

units

PVC-350

PHYSICAL

Specific Gravity

ASTM D-792

--

1.38

Pencil Hardness

ASTM D-3363

Hardness Scale

F

MECHANICAL

Tensile Strength--Ultimate

ASTM D-638

psi

10,000

Tensile Strength--Elongation

ASTM D-638

%

40

Tensile Modulus

ASTM D-638

psi

425,000

Flexural Strength

ASTM D-790

psi

14,500

Flexural Modulus

ASTM D-790

psi

425,000

Compressive Strength

ASTM D-695

psi

12,000

Izod Impact Strength (milled notch)

ASTM D-256

ft-lb/inch of notch

0.5

THERMAL

Deflection Temperature (264 psi load)

ASTM D-648

oF

140

Vicat Softening Point

ASTM D-1525

of

150

Maximum Continuous Service Temperature

--

of

130

Coefficient of Thermal Expansion

ASTM D-696

in/in/of

7.0 x 10-5

Coefficient of Thermal Conductivity

Cenco-Fitch

BTU*in/hr*ft2*oF

1.1

FLAMMABILITY

Horizontal Burn (Flame Spread)

ASTM D-635

inch/min

Less than 1.0

UL 94 Rating

UL 94

UL Classification

V-O

OPTICAL

3mm Transparent Clear Transmittance--Total

ASTM D-1003

%

70

Haze

ASTM D-1003

%

6.0

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

Clear

30% Sulfuric Acid

None

Clear

30% Nitric Acid

Slight pitting

Clear

48% Hydrofluoric Acid

None

Clear

Methanol

Slight pitting

Clear

Ethanol

None

Clear

Isopropyl Alcohol

None

Clear

Acetone

Severe pitting

Plastic attacked

Methylene Chloride

Sample dissolved

Sample dissolved

Light Transmission Spectral Analysis

Light Transmission Spectral Analysis

PRECAUTIONS:
1. PVC plastic is a combustible thermoplastic  which emits toxic and corrosive gases upon combustion. 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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