Mar-Con® 551 Polycarbonate (Forming Grade)

Chemical Family: Polycarbonate (PC)

Mar-Con® 551 Polycarbonate (Forming Grade) is an abrasion resistant plastic sheet product designed for a variety of high performance end uses in which the sheet will be heat formed or bent into soft radius shapes. It is a premium, high optic grade, polycarbonate sheet, coated with SciCron’s Mar-Con 551 advanced technology crosslinked coating. This coating has excellent resistance to a wide variety of chemicals and solvents and is considerably more abrasion resistant than the polycarbonate plastic substrate. This combination of properties provides enhanced resistance to hazing, abrasion, and marring of the sheet surfaces from cleaning, handling, and defacement efforts. Mar-Con® 551 Polycarbonate - FG also exhibits excellent impact resistance and flame spread properties. This product can be used in many more applications than would be practical for an uncoated polycarbonate sheet. Mar-Con 551 can also be applied to thin gage materials without suffering from distortions caused by typical thermal curing coating processes.

Properties

Physical Form: Sheets

Product families

Industrial — Chemical & Industrial Manufacturing

Equipment & Parts

Other characteristics

Brand: Mar-Con
Color: Black, Bronze, Grey, Transparent
Black
Bronze
Grey
Transparent
Density: 1200.0 - 1200.0 kg/m³
Features: Abrasion Resistant, Chemical Resistant, Cleanable, Durable, Excellent Solvent Resistance, Flame Resistant, Flexible, Good Optical Properties, Good Scratch Resistance, Good Smoothness, Graffiti Resistant, High Clarity, High Gloss, High Impact Resistance, High Performance, Mar Resistant
Polymer Name: Polycarbonate (PC)
Tensile Modulus: 93.015 - 93.015 MPa
Markets: Industrial
Cleaning: The Forming Grade Mar-Con 551 coated surface can be cleaned with a variety of common cleaners (see reverse side 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 coated surface.
Fabrication: Mar-Con® 551 Polycarbonate - Forming Grade is easily fabricated into flat and bent surface configurations using the same equipment employed with uncoated polycarbonate sheet products. The product is designed to accommodate drape forming and heat bending, however, care must be taken to avoid applying too much heat to prevent damage to the abrasion resistant coating. Soft radii shapes and bends can be achieved which are smooth, clear, and uniform, if recommended forming techniques are employed. Some distortion and loss of mar resistance in a bend area is normal. On tight bends, particularly in thicker materials, there may be some very fine haze lines in the bend area. When solvent welding, it is necessary to remove the coating mechanically to achieve a good bond. Note: This product is not designed for vacuum formed or drawn configurations.
Availability: Mar-Con® 551 Polycarbonate - Forming Grade is available in clear, black opaque, and transparent gray and bronze tints. Other colors may be available upon special request. Standard Dimensions 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.
Technology: Plastics
Labeling Claims: Not Hazardous under OSHA Hazard Communication Standard
Product Families: Plastics — Parts, Shapes & Films
Material Features: Abrasion Resistant
Chemical Resistant
Cleanable
Durable
Excellent Solvent Resistance
Flame Resistant
Flexible
Good Optical Properties
Benefits and Features: Flexible, abrasion resistant, durable surface - The Forming Grade Mar-Con 551 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 abrasion and chemical resistance without changing the appearance of the polycarbonate surfaces.; Graffiti resistance - Easy to clean hydrophobic surface; Superior impact resistance - Provides exceptional shatter resistance for safety.; Superior flame spread properties - Provides additional protection in a fire.; Superior forming and bending properties - Results in optimum heat forming during part fabrication.

Technical data

Table 1 of 5

9 rows

Characteristic	Value	Unit	Method
Compressive Strength	16.0	ft-lb/inch	ASTM D256
Elongation	340000.0	psi	ASTM D638
Flexural Modulus	12500.0	psi	ASTM D695
Flexural Strength	340000.0	psi	ASTM D790
Izod Impact Strength (milled notch)	min. 500	Hrs	ASTM G154
Tensile Modulus	13500.0	psi	ASTM D790
Tensile Strength	9500.0	psi	ASTM D638
Ultimate	100.0	%	ASTM D638
UV Exposure (4 hrs Condensation)	No Adhesion Loss ∆YI <3	—	—

Table 2 of 5

3 rows

Characteristic	Value	Unit	Method
Specific Gravity	1.2	—	ASTM D792
Taber Abrasion1 - ∆ Haze	max. 8	%	ASTM D1044
Weighted Steel Wool Rub Resistance2	Light Scratches	—	Internal

Table 3 of 5

5 rows

Characteristic	Value	Unit	Method
Coefficient of Thermal Conductivity	1.35	BTU.in/hr.ft2.°F	Cenco-Fitch
Coefficient of Thermal Expansion	3.8 x 10^-5	in/in/°F	ASTM D696
Deflection Temperature (264 psi load)	270.0	°F	ASTM D648
Maximum Continuous Service Temperature	180.0	°F	—
Vicat Softening Point	310.0	°F	ASTM D1525

Table 4 of 5

2 rows

Characteristic	Value	Unit	Method
Haze	max. 1.0	%	ASTM D1003
Transmittance, 3mm Transparent Clear - Total	88.0	%	ASTM D1003

Table 5 of 5