Henkel Macromelt® Low Pressure Moulding Materials
EC Moulding services have based our processes around Henkel Corporation’s brand of thermoplastic hotmelt adhesives called Macromelt® or more recently called Technomelt®. There are a number of material suppliers that offer comparable alternatives but at EC we have chosen to work closely with the compounds from Henkel Corporation as they offer superior sealing and environmental specifications.
Macromelt thermoplastic hotmelt adhesives are based on natural fatty acids, they show good adhesion to plastics like PA6.6, ABS and PVC have low temperature flexibility and a wide service temperature range and offer superior moulding properties.
Please call us with any questions.
Macromelt/Technomelt® Material Data Sheet
|Material||Test||OM 652||OM 6208||OM 633||OM 641||OM 673|
|Properties||Method||OM 657||OM 6208S||OM 638||OM 646||OM 678|
|Specific gravity, S.G.||0.98||0.98||0.98||0.98||0.98|
|Service Temperature, °C||-40 to +100||-40 to +100||-40 to +130||-40 to +130||-40 to +140|
|Viscosity @ +210C ( mPa.s )||4000||3000||3500||7000||3000|
|Hardness @ 25°C, shore A||ISO 868/15S||77||78||90||92||88|
|Hardness @ 125°C, shore A||ISO 868/15S||N/A||N/A||65||63||63|
|Softening point, ball & ring, °C||ASTM E28||155||+155||+175||+175||+185|
|Cold Flexibility °C||ASTM D3111||-45||-42||-36||-35||-50|
|Moulding temperature, °C||180 to 230||190 to 230||200 to 240||210 to 240||210 to 240|
|Viscosity @ 210° C, mPas||ASTM D3236||4100||3600||3700||7000||3400|
|Dielectric constant @ 1kHz||6.2 / 6.3||6.1 / 6.3||4.5 / 4.7||5.1 / 5.5||4.9 / 4.9|
|Volume resistivity, Ohm cm||1.9×10¹²||1.9×10¹²||1.9×10¹²||1.9×10¹²||1.9×10¹²|
|Dielectric strength, kV / mm||>20kV/mm||>20kV/mm||>20kV/mm||>20kV/mm||>20kV/mm|
|Flammability rating||UL94 File E182771||V-0||V-0||V-0||V-0||V-0|
|Special Properties||Good cold flexibility||RTI value for 6208S 95C|
Characteristics of Macromelt®
Each grade of material is available in the amber based version and in black and some custom to order colours are available – contact us.
The softer materials generally offer the best adhesive properties.
Moisture and solvent resistance requirements will be key factors in selecting a specific grade of material. Most Macromelt moulding materials do NOT have good resistance to solvents in combination with mechanical stress.
These molding compounds shrink approximately 1.5% after molding.