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Mar-Con® Polycarbonate

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Mar Resistant Plastic

Description
Mar-Con® 550 Polycarbonate is a hard coated, abrasion resistant plastic sheet product designed for a variety of high performance end uses.  It is a premium quality polycarbonate sheet which has been coated with SciCron’s Mar-Con 550 advanced technology cross linked coating.  This coating has excellent resistance to a wide variety of chemicals and solvents and is considerably more abrasion resistant than the soft polycarbonate plastic substrate.  This combination of properties provides enhanced resistance to hazing, marring, abrasion, and scratching of the sheet surfaces from cleaning, handling, and defacement efforts.  The plastic substrate is a high optic grade polycarbonate sheet therefore Mar-Con® 550 Polycarbonate also exhibits excellent optical properties.  In addition, it has superior impact resistance and flame spread properties.  Consequently, this product can be used in many more applications than would be practical for an uncoated polycarbonate sheet.  Mar-Con 550 can be applied to thin gauge materials without suffering from distortions caused by typical thermal curing processes.

Applications
Mar-Con Polycarbonate is designed to be used where there is concern about scratching and abrasion of the surfaces of the plastic sheet from handling and other moderate abuse. It is also designed for applications requiring improved splash and wipe down resistance to many common chemicals and solvents which would normally damage the polycarbonate sheet surfaces. The Mar-Con 550 surface helps prevent such damage from short term exposures to these materials. Mar-Con® 550 Polycarbonate is suitable for use in fabricated items, such as, boxes, displays, and display cases. It can also be used for machine guards, safety and security glazing, partitions, enclosures, doors, access panels and inspection windows.

Fabrication
Mar-Con® 550 Polycarbonate is easily fabricated into flat surface configurations using the same equipment and fabrication techniques generally employed with unsurfaced polycarbonate sheet products. It should not be used for heat formed bent configurations since the hard, cured Mar-Con 550 mar resistant surface is not designed for heat bending. Note: When solvent welding, it is necessary to remove the Mar-Con surface mechanically to achieve a good bond.

Features and Benefits
  • Abrasion resistant, mar resistant, durable surface
    The Mar-Con 550 surface, more abrasion resistant than the base plastic, reduces risk of damage to the sheet surfaces from frequent cleaning and handling.
  • Superior chemical and solvent resistance
    Reduces risk of solvent or chemical damage to the sheet surfaces.
  • Excellent optical properties
    High clarity, high gloss coating on a high optic substrate maintains optimum light transmission without distortion.
  • Advanced technology, uniform surface treatment
    Provides enhanced mar and chemical resistance without changing the appearance of the polycarbonate surfaces.
  • Superior impact resistance
    Provides exceptional shatter resistance for safety.
  • Superior flame spread properties
    Provides additional protection in a fire.

Cleaning
The Mar-Con 550 surface can be cleaned with a variety of common cleaners (see below for specific recommendations). Care should be taken to avoid the use of any cleaner or cleaning solution which contains an abrasive. In addition, all wipes, sponges and drying towels should be clean and free of any grit which could damage the surface.

Availability
Mar-Con® 550 Polycarbonate is available in clear, black opaque, and transparent gray and bronze tints. Other colors may be available upon special request.

Standard Dimensions (Nominal)
Thickness: 3mm (1/8"), 4.5mm (3/16"), 6mm (1/4"), 9mm (3/8"), 12mm (1/2") plus films 10-90 mils
Standard Sheet Size: 48" x 96"
Other sizes and thicknesses available upon request.

Made in USA

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

Property Test Method Units Mar-Con Polycarbonate
Physical
Specific Gravity
Taber Abrasion1 - Change in Haze
Weighted Steel Wool Rub Resistance2
ASTM D3363
ASTM D1044
Internal
--
%
Visual Scratches
1.20
Less than 4.5
Very Light Scratches
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
9,500
100
340,000
13,500
340,000
12,500
16
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
270
310
180
3.8 x 10-5
1.35
Flammability
Horizontal Burn (Flame Spread)
UL 94 Rating of the Uncoated Substrate

ASTM D635
UL 94

in/min
UL Classification

Less than 1.0
V-2 < 0.236 inch
V-0 ≥ 0.236 inch
Optical
3mm Transparent Clear Transmittance - Total
Haze
ASTM D1003
ASTM D1003
%
%
90
Less than 1.0

1. Test conditions - 500 gram load, 100 revolution exposure, CS-10F Calibrase Wheel
2. Test conditions - 14 strokes of #0000 steel wool under a 2 pound (908 gram) rounded point load 



Chemical Resistance ASTM D-1308
Samples immersed in listed chemicals and then examined for visible attack at 15 minutes, 1 hour, and 24 hours

Chemical Time for Visible Attack
Acetone > 1 hour
Methyl Alcohol > 24 hours
Isopropyl Alcohol > 24 hours
Gasoline > 24 hours
Kerosene > 24 hours
Toluene > 1 hour
Methylene Chloride > 24 hours
Sodium Hydroxide (10%) > 24 hours
Hydrochloric Acid (10%) > 24 hours
Sulfuric Acid (10%) > 24 hours
Nitric Acid (10%) > 24 hours

Cleaning and Graffiti Removal

Solvents and Cleaning Liquids Found Effective Under Laboratory Conditions

Aqueous solutions of the following can be applied carefully with a soft cloth or sponge for ordinary dirt and grime.

        Joy®                      Windex®
        Formula 409®        Sparkle™

Rinse with clean water before drying with a chamois or cellulose sponge.
Never use an abrasive cleaner or scouring pad.

The following solvents can be used to remove graffiti and other stubborn stains.

        Isopropyl Alcohol       Methanol
        Naphtha (VM&P Grade) Kerosene
        Butyl Cellosolve (for paints, inks, lipstick, etc.)

Always remove residual solvent with an aqueous cleaner and a final rinse with clean water.
     

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.

MCPC-4 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 MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE HEREBY EXCLUDED.  All sales are subject to SciCron’s standard terms and conditions of sale, which can be found at:  http://www.sctech.com/termscon