Melochem Moulding Compound 791
- Chemical Family
- Melamine Formaldehydes (MF)
Melochem Molding Compound 791 by BI-QEM is a melamine-formaldehyde resin reinforced with high-class cellulose and modified with special purpose additives, pigments, cure regulators and lubricants. It offers good hardness, glossy surface with excellent scratch and chemical resistance. It provides resistance against surfactants and weak bases. It is recommended for household and foodservice applications including dinnerware, ramekins, ashtrays, jugs, ladles, and bowls. Melochem Molding Compound 791 is also suitable for the manufacture of retail, commercial and military grade buttons. The molded products can be recycled and exhibit low water absorption properties. It has a shelf life of 6 months.
Properties
- Physical Form
- Granules
- Solid
Product families
Applications
- Consumer Goods — Housewares; Consumer Goods — Other Consumer Goods Applications
- Consumer Electronics
- Healthcare Packaging
- Other Wire & Cable Applications
Product Families
- Bulk Molding Compounds (BMC)
Other characteristics
- Brand
- BI-QEM Melochem
- End Uses
- Buttons, Closures, Kitchenware, Trays
- Functions
- Molding Compound
- Polymer Name
- Melamine Formaldehyde (MF)
- Processing Methods
- Injection Molding
- Reinforcement Material
- Cellulose Fibers
- Markets
- Consumer Goods
- Electrical & Electronics
- Printing & Packaging
- Features
Compared to thermoplastics, melamine molding compounds exhibit:; Superior surface hardness that cannot be duplicated by thermoplastic materials; Superior heat resistance exceeding 99°C with UL continuous use index of 130°C; Environmentally friendly raw material components that do not contain Halogens, flame-retardant chemicals or organic solvents; Superior chemical resistance; Excellent scratch resistance that cannot be duplicated by engineered thermoplastic materials; Unparalleled UV stability and color retention; Lubricated
- Appearance
- Colors Available
- Resin Type
- MF (Melamine Formaldehyde Resin)
- Technology
- Composite Materials
- Product Status
- Commercial
- Labeling Claims
- Environmentally Friendly
- Food Contact Acceptable
- Halogen-free
- Recommended
Households products/ Consumer Goods > Kitchen utensils; Conversion of composites & thermosets > Compression molding
- Additives Included
- Lubricant (Unspecified)
- Pigment (Unspecified)
- Material Features
- Abrasion Resistant
- Chemical Resistant
- Excellent Retention
- Good Scratch Resistance
- Good UV Stability
- Heat Resistance
- High Gloss
- Low Water Absorption
- Agency Ratings
- DIN 7708 type 152 and 152.7 <br>
- ISO 2112 type MF B10 and B11 <br>
- UL certified
- Composite Materials Functions
- Molding Compound
- Composites Processing Methods
- Injection Molding
- Plastics and Elastomers End Uses
- Buttons
- Closures
- Kitchenware
- Trays
Technical data
Table 1 of 5
2 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Density | 1.5 | g/cm³ | ISO 1183 |
| Linear Mold Shrinkage | 0.6 - 0.8 | % | ISO 2577 |
Table 2 of 5
4 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Flexural Strength | min. 80 | MPa | ISO 178 |
| Tensile Strength | min. 45 | MPa | ISO 527 |
| Impact Strength | min. 5 | kJ/m2 | ISO 179/1eU |
| Impact Strength (Notched) | min. 1.1 | kJ/m2 | ISO 179/1eA |
Table 3 of 5
1 row| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Deflection Temperature (8.0 MPa) | min. 110 | °C | ISO 75 |
Table 4 of 5
3 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Surface Resistance | min. 10 | ohm | IEC 93 |
| Dissipation Factor (At 1 kHz) | max. 0.1 | — | IEC 250 |
| Dielectric Constant | 5.0 | — | DIN 53483 |
Table 5 of 5
2 rows| Characteristic | Value | Unit | Method |
|---|---|---|---|
| Flame Rating (UL 94) | V-0 | — | — |
| Limiting Oxygen Index | min. 40 | % | ASTM D2863 |
