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Plexiglas® zk20

Polymethyl Methacrylate Acrylic

Supplied by Evonik Röhm GmbH

The technical datasheet with complete property values for Plexiglas® zk20 is available to members of the Prospector Plastics Database.
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Product Description
Product Profile:
PLEXIGLAS® Resist zk20 is an amorphous thermoplastic molding compound that is slightly impact-modified (PMMA-I).

Typical properties of standard PLEXIGLAS® molding compounds are:
  • excellent light transmission
  • good mechanical properties.

Special properties of PLEXIGLAS® Resist zk20 are:
  • increased break resistance to avoid demolding fractures during injection molding
  • improved resistance to stress cracking
  • AMECA listing.

Application:
Used for injection molding. Profile extrusion or coextrusion are also possible.

Examples:
lighting fixtures, writing and drawing utensils, domestic appliances and sanitaryware

Processing:
PLEXIGLAS® Resist zk20 can be processed on machines with 3-zone general purpose screws for engineering thermoplastics.

Physical Form / Packaging:
PLEXIGLAS® Resist zk molding compounds are supplied as pellets of uniform size, packaged in 25kg polyethylene bags or 500kg boxes with PE lining; other packaging on request.
General  
Material Status 
  • Commercial: Active
Availability 
  • Europe
Additive 
  • Impact Modifier
Features 
  • High ESCR (Stress Crack Resist.)
  • High Impact Resistance
  
Uses 
  • Appliances
  • Lighting Fixtures
  • Medical Appliances
  • Profiles
  • Sanitary Products
  • Writing Instruments
Forms 
  • Pellets
Processing Method 
  • Extrusion
  • Injection Molding
  
Multi-Point Data 
  • Creep Modulus vs. Time (ISO 11403-1)
  • Isochronous Stress vs. Strain (ISO 11403-1)
  • Isothermal Stress vs. Strain (ISO 11403-1)
  • Secant Modulus vs. Strain (ISO 11403-1)
  • Shear Modulus vs. Temperature (ISO 11403-1)
  • Viscosity vs. Shear Rate (ISO 11403-2)
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ISO 1183
Melt Volume-Flow Rate (MVR) (230°C/3.8 kg)
in³/10min
 ISO 1133
Water Absorption (Equilibrium, 73°F, 50% RH)
%
 ISO 62
Mechanical
Nominal Value
Unit
Test Method
Tensile Modulus
psi
 ISO 527-2/1
Tensile Stress (Yield)
psi
 ISO 527-2/50
Tensile Strain (Yield)
%
 ISO 527-2/50
Nominal Tensile Strain at Break
%
 ISO 527-2
Impact
Nominal Value
Unit
Test Method
Charpy Unnotched Impact Strength (73°F)
ft·lb/in²
 ISO 179/1eU
Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature
      
66 psi, Unannealed
°F
 ISO 75-2/B
264 psi, Unannealed
°F
 ISO 75-2/A
Glass Transition Temperature
°F
 IEC 1006
Vicat Softening Temperature
°F
 ISO 306/B50
CLTE - Flow (32 to 122°F)
in/in/°F
 ISO 11359-2
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL (0.0630 in)
 
 UL 94
Optical
Nominal Value
Unit
Test Method
Refractive Index
 
 ISO 489
Transmittance 2
%
 ISO 13468-2
Related Terminology
This supplier and product may also be known by these terms: Plexiglass

Product names can be difficult to match. You may have searched any one of these terms to find this product: Plexiglas® zk20, Plexiglas zk20, Plexiglas® , Plexiglas, Plexiglaszk20, zk 20, zk20, Acrylic, Acrylic, Polymethyl Methacrylate, Acrylic Polymethyl Methacrylate, Acrylic (PMMA), Acrylic PMMA, pmma, Evonik Rohm, AcrylicPolymethylMethacrylate, AcrylicPMMA, 20zk
Features
Features may also be described by the following terms: High Impact Resistance, High Environmental Stress Cracking Resistance, High ESCR, Stress Cracking Resistant.
Injection
Nominal Value
Unit
 
Drying Temperature
°F
  
Drying Time
hr
  
Processing (Melt) Temp
°F
  
Mold Temperature
°F
  
Notes
1Typical properties: these are not to be construed as specifications.
2D65
 
IDES
Copyright © 2012 IDES
The information presented on this datasheet was acquired by IDES from the producer of the material. IDES makes substantial efforts to assure the accuracy of this data. However, IDES assumes no responsibility for the data values and strongly encourages that upon final material selection, data points are validated with the material supplier.