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Mar-Con® 551 Acrylic (Forming Grade)

1 of 4 products in this brand
Mar-Con® 551 Acrylic (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 quality acrylic sheet, coated with Scicron’s Mar-Con 551 advanced technology cross-linked coating. This coating has excellent resistance to a wide variety of chemicals and solvents and is more abrasion resistant than the acrylic plastic substrate. This combination of properties provides enhanced resistance to hazing, marring, and abrasion, of the sheet surfaces from cleaning, handling, and defacement efforts. Mar-Con® 551 Acrylic - Forming Grade also exhibits excellent optical properties and fabrication characteristics. This product can be used in many more applications than would be practical for an uncoated acrylic sheet.

Polymer Name: Polymethyl Methacrylate (PMMA)

Physical Form: Sheets

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, Impact Modified, Mar Resistant

Density: 1190.0 - 1190.0 kg/m³

Tensile Modulus: 2756.0 - 2756.0 MPa

Color: Opaque, Transparent, White

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Identification & Functionality

Additives Included
Chemical Family
Technologies

Features & Benefits

Features and Benefits
  • Flexible, abrasion resistant, durable surface - The Forming Grade Mar-Con 551 coated 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 maintains optimum light transmission without distortion.
  • Advanced technology, uniform surface treatment - Provides enhanced abrasion and chemical resistance without changing the appearance of the acrylic surfaces.
  • Graffiti resistance - Easy to clean hydrophobic surface
  • Superior fabrication and bending characteristics - Results in optimum heat forming during part fabrication

Applications & Uses

Markets
Plastics & Elastomers Processing Methods
Applications

Mar-Con® 551 Acrylic - Forming Grade is designed to be used where there is concern about 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 acrylic sheet surfaces. The Forming Grade Mar-Con® 551 coated surface helps prevent such damage from short-term exposures to these materials. Typical applications for Mar-Con® 551 Acrylic - Forming Grade include formed fabricated items, such as: equipment covers, display components, safety shields, and curved machine guards.

Fabrication

Mar-Con® 551 Acrylic - Forming Grade is easily fabricated into a variety of flat and bent surface configurations using the same equipment employed with uncoated acrylic 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 abrasion 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 Mar-Con 551 coated surface mechanically to achieve a good bond.

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 surface.

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, in addition to the above cleaners, 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.

Properties

Physical Form
Mechanical Properties
ValueUnitsTest Method / Conditions
Compressive Strength18000.0psiASTM D695
Flexural Modulus475000.0psiASTM D790
Flexural Strength16500.0psiASTM D790
Izod Impact Strength (milled notch)0.4ft-lb/inchASTM D256
Tensile Modulus400000.0psiASTM D638
Tensile Strength Elongation4.2%ASTM D638
Tensile Strength Ultimate10000.0psiASTM D638
Physical Properties
ValueUnitsTest Method / Conditions
Specific Gravity1.19-ASTM D792
Taber Abrasion1 - ∆ Hazemax. 8%ASTM D1044
Weighted Steel Wool Rub Resistance2Light Scratches-Internal
Thermal Properties
ValueUnitsTest Method / Conditions
Coefficient of Thermal Conductivity1.3BTU.in/hr.ft2.°FCenco-Fitch
Coefficient of Thermal Expansion3.8 x 10^-5in/in/°FASTM D696
Deflection Temperature (264 psi load)210.0°FASTM D648
Maximum Continuous Service Temperature180.0°F-
Vicat Softening Point239.0°FASTM D1525
Optical Properties
ValueUnitsTest Method / Conditions
Hazemax. 1.0%ASTM D1003
Transmittance, 3mm Transparent Clear - Total92.0%ASTM D1003
Flammability
ValueUnitsTest Method / Conditions
Horizontal Burn (Flame Spread)1.1in/minASTM D635
UL 94 Rating of the Uncoated SubstrateHB-UL 94

Regulatory & Compliance

Technical Details & Test Data

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
Kerosene > 24 hours
Toluene < 1 hour
Sodium Hydroxide (10%) > 24 hours
Hydrochloric Acid (10%) > 24 hours
Sulfuric Acid (10%) > 24 hours
Nitric Acid (10%) > 24 hours

 

 

 

 

Packaging & Availability

Availability

Mar-Con® 551 Acrylic - Forming Grade, in cell cast type, is available in clear and a variety of standard transparent colors. White translucent and colored opaque grades are also available. Continuously cast, extruded types and impact modified types are available in some sizes and thicknesses upon request.

Note: Cell cast is a premium 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 needed.

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 available upon request.