AC-300™ Acrylic

Static Dissipative Plastic

Description
AC-300™ Acrylic is a coated plastic sheet product designed to control static electricity for a wide range of end uses. It is a premium quality acrylic sheet which has been coated with SciCron Technologies proprietary, clear, C-300™ static dissipative coating. 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. AC-300 Acrylic offers exceptional design versatility since it fabricates simply, is light in weight and is available in large sheet sizes. It also exhibits excellent optical properties, chemical resistance, surface hardness and mar resistance.

Applications
AC-300 Acrylic 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 semi-conductor, electronic, micro-manufacturing, and mining industries. Typical applications include; covers, windows, doors, and access panels for electronic equipment, machines and instruments; fabricated desiccators, cabinets, and boxes; transparent room partitions and pass-thru modules; process equipment enclosures; and mini-environment glazing panels. 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
AC-300 Acrylic is easily fabricated into flat surface configurations using the same equipment and fabrication techniques generally employed with unsurfaced acrylic sheet products. It should not be used for heat formed bent configurations since the hard, cured C-300 surface is not designed for heat bending. When solvent welding, it is necessary to remove the C-300 surface mechanically to achieve a good bond. For more information on fabrication refer to SciCron Technologies Technical Information Bulletin No. SP-01.

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 without the need for ionization.
  • 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.
  • Excellent optical properties
    C-300 surface provides excellent clarity for optimum use of available light.
  • Superior chemical resistance
    Reduces risk of solvent or chemical surface damage.
  • Hard, mar resistant, durable surface
    C-300 surface, harder than the base plastic, reduces risk of damage to the sheet surfaces.
  • Superior fabrication characteristics
    Results in optimum workability during part fabrication.

Availability
AC-300 Acrylic, in cell cast type, is available in clear and a variety of standard transparent colors including tints which filter wave-lengths that can interfere with processing opera-tions. White translucent and colored opaque grades are also available. Continuously cast and extruded types are available in some sizes and thicknesses upon request. Note: Cell cast is a premium form of acrylic plastic but it has a wider thickness variation than other acrylic types. Therefore, continuously cast or extruded material should be specified if a narrow thickness tolerance range is required.

Standard Dimensions (Nominal)
Thickness: 3mm (1/8″), 4.5mm (3/16″), 6mm (1/4″), 9mm (3/8″), 12mm (1/2″) – Note: 9mm and 12mm – cell cast only.
Standard Sheet Size: 48″ x 96″
Other sizes and thicknesses, including oversize sheets, available upon request.

Made in USA

Typical Physical Properties  (Typical but not guaranteed values for 0.25 inch cell cast material)

PropertyTest MethodUnitsAC-300 Acrylic
Physical
Specific Gravity

ASTM D792



1.19

Mechanical
Tensile Strength
  Ultimate
  Elongation
Tensile Modulus
Flexural Strength
Flexural Modulus
Compressive Strength
Izod Impact Strength (milled notch)
ASTM D638
ASTM D638
ASTM D638
ASTM D790
ASTM D790
ASTM D695
ASTM D256
psi
%
psi
psi
psi
psi
ft-lb/inch of notch
10,000
4.2
400,000
16,500
475,000
18,000
0.4
Thermal
Deflection Temperature (264 psi load)
Vicat Softening Point
Maximum Continuous Service Temperature
Coefficient of Thermal Expansion
Coefficient of Thermal Conductivity
ASTM D648
ASTM D1525

ASTM D696
Cenco-Fitch
°F
°F
°F
in/in/°F
BTU•in/hr•ft2•°F
210
239
180
3.5 x 10-5
1.3
Flammability
Horizontal Burn (Flame Spread)
UL 94 Rating of the Uncoated Substrate
ASTM D635
UL 94
in/min
UL Classification
1.1
HB
Optical
3mm Transparent Clear Transmittance – Total
Haze
ASTM D1003
ASTM D1003
%
%
80
Less than 5.0
Electrical
Surface Resistivity
Surface Resistance
Electrostatic Decay

ASTM D257
EOS/ESD S11.11
FTS 101C,
Method 4046.1*
ohms/sq
ohms
sec

106 – 108
105 – 107
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 D543
Samples immersed in the specified chemicals for 24 hours at room temperature and visually examined.

ChemicalSurface AttackVisual Evaluation
Deionized WaterNoneClear
30% Sodium HydroxideNoneClear
30% Sulfuric AcidNoneClear
30% Nitric AcidSlight PittingClear
48% Hydrofluoric AcidSevere AttackWhite, Rubbery
MethanolSlight PittingClear
EthanolNoneClear
Isopropyl AlcoholNoneClear
AcetoneSevere PittingCoating Clear-Plastic Attacked

Light Transmission
Spectral Analysis

Precautions:

  1. Acrylic 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

AC-300-9 5/17

The information and statements contained herein are believed to be accurate, however, users should perform their own testing and verification to determine the durability, applicability and suitability of the products for their own purposes.  NOTHING CONTAINED HEREIN SHALL BE CONSTRUED AS A REPRESENTATION OR WARRANTY OF ANY KIND, EXPRESS OR IMPLIED.  IMPLIED WARRANTIES OF MERCHANABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY EXCLUDED.  All sales are subject to SciCron’s standard terms and conditions of sale.

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