Moulding Materials 2018-03-29T16:39:27+00:00
EC Electronics

Moulding Materials

Henkel Macromelt® Low Pressure Moulding Materials

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

MaterialTestOM 652OM 6208OM 633OM 641OM 673
PropertiesMethodOM 657OM 6208SOM 638OM 646OM 678
Color amber/black amber/black amber/black amber/black amber/black
Physical
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 AISO 868/15S 77 78 90 92 88
Hardness @ 125°C, shore AISO 868/15S N/A N/A 65 63 63
Softening point, ball & ring, °CASTM E28155 +155 +175 +175 +185
Cold Flexibility °CASTM 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, mPasASTM D3236 4100 3600 3700 7000 3400
Electrical
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 ratingUL94 File E182771V-0 V-0 V-0 V-0 V-0
Special Properties Good cold flexibility RTI value for 6208S 95C
Adhesion Properties
Substrate Type
PA6.6GoodGoodModerateModerateModerate
PVCGoodGoodGoodExcellentGood
ABSGoodGoodModerateModerateModerate

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.

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