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Melochem 791

Melamine Formaldehyde

Alpha Cellulose Filler

Supplied by Chemiplastica, Inc.

The technical datasheet with complete property values for Melochem 791 is available to members of the Prospector Plastics Database.
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Product Description
The Melochem 791 Moulding Compound in powder form are based on melamine-formaldehyde resins fortified with high-class cellulose as reinforcement and further modified with minor amounts of special purpose additives, pigments, cure regulators and lubricants.

The Melochem 791 Moulding Compounds can be supplied in most colours from translucent pastels to black.

Moulded parts are free from odour, light stable and have good moisture resistance.

Hard and Glossy surface with excellent scratch and chemical resistance. Fats, oils and common organic solvents like alcohol and acetone do not attack the materials and they are also resistant to surfactants and weak bases. They will also withstand attack from weak acids fro a shorter duration.

Oxygen index is 40% and is achieved without the use of external flame retardants. No halogens are present in the composition.

The products comply with the requirements of the widely used material specifications :
DIN 7708 type 152 and 152.7 (*)
ISO 2112 type MF B10 and B11 (*)
UL certified
(*) included in ISO 14528

Fields of application: Unique porcelain-like properties, unmatched by any other plastic material, makes Melochem 791 Moulding Compound particularly suitable for a number of household and foodservice applications including dinnerware, ramekins, ashtrays, jugs, ladles, bowls and similar objects.

Melochem 791 is also used in the manufacture of retail, commercial and military grade buttons.

By pressing a foil onto the surface, unlimited range of decorative patterns can be achieved.

The moulded items exhibit low water absorption properties and are therefore are dishwasher safe.
General  
Material Status 
  • Commercial: Active
Availability 
  • Asia Pacific
  • Europe
  • North America
Filler / Reinforcement 
  • Alpha Cellulose Filler
Features 
  • Alcohol Resistant
  • Base Resistant
  • Good Chemical Resistance
  • Halogen Free
  • High Gloss
  • High Hardness
  • Light Stabilized
  • Low to No Odor
  • Lubricated
  • Moisture Resistant
  • Oil Resistant
  • Recyclable Material
  • Renewable Resource Content
  • Scratch Resistant
  • Solvent Resistant
Uses 
  • Food Service Applications
  • Household Goods
  • Military Applications
  • Table Products
  
Agency Ratings 
Appearance 
  • Colors Available
Forms 
  • Powder
Processing Method 
  • Compression Molding
Physical
Nominal Value
Unit
Test Method
Density
g/cm³
 ISO 1183
Molding Shrinkage
     ISO 2577
-- 2
%
  
--
%
  
Water Absorption
mg
 ISO 62
Mechanical
Nominal Value
Unit
Test Method
Tensile Stress (Yield)
psi
 ISO 527-2
Flexural Strength
psi
 ISO 178
Impact
Nominal Value
Unit
Test Method
Charpy Notched Impact Strength
ft·lb/in²
 ISO 179/1 e A
Charpy Unnotched Impact Strength
ft·lb/in²
 ISO 179/1 eU
Thermal
Nominal Value
Unit
Test Method
Heat Deflection Temperature (1160 psi, Unannealed)
°F
 ISO 75-2/C
Electrical
Nominal Value
Unit
Test Method
Surface Resistivity
ohm
 IEC 60093
Dielectric Constant
 
 DIN 53483
Dissipation Factor (1 kHz)
 
 IEC 60250
Comparative Tracking Index
V
 IEC 60112
Flammability
Nominal Value
Unit
Test Method
Flame Rating - UL
 
 UL 94
Glow Wire Flammability Index 3
°F
 IEC 707
Oxygen Index
%
 ASTM D2863
Additional Information
Nominal Value
Unit
Test Method
Emission
     ISO 4614
Acetic Acid
mg/l
  
Ethanol
mg/l
  
Water
mg/l
  
Related Terminology
Product names can be difficult to match. You may have searched any one of these terms to find this product: Melochem 791, Melochem , Melochem791, 791, Melamine Formaldehyde, Mel Formald, Melamine, mf, Perstorp, MelamineFormaldehyde, MelFormald
Features
Features may also be described by the following terms: Renewable Resources, From Renewable Resources, Renewable Resource Derived, Renewable Raw Materials, Renewable Resource Content, High Hardness, Hard, High Gloss, Moisture Resistant, Water Resistant, Low Moisture Absorption, Low Water Absorption, Low Odor, Scratch Resistant, Resists Scratches, Good Chemical Resistance, Chemical Resistant, Zero Halogen Content, Halogen Free.
Uses
Uses may also be described by the following terms: Household Goods, Housewares.
Agency Ratings
This plastic material has 1 certifications from the following agencies (the number in parentheses shows the number of certifications for that agency): ASTM (1).
Notes
1Typical properties: these are not to be construed as specifications.
2Post-shrink
3180 sec, < B H2-10
 
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.