Description
ECP 2242 is a proprietary injection moulding compound utilising a special non-migratory additive system to give a permanently static dissipative material. The material is specially designed for applications requiring static control such as electronic safe handling areas and hazardous environments.
The compound is natural colour and can be pigmented to a variety of colours.
APPLICATIONS
Typical applications include:
- Production aids for the electronics industry
- Plastic parts for hazardous environments, ATEX requirements
– Audio/Hi-Fi accessories
- Static dissipating tools and equipment with “soft feel “ requirements
- Flexible mouldings
- Extrusion parts requiring flexibility
PROPERTIES
Surface Resistivity (ohms/sq.) 108 typ (DIN 53482)
Static Decay 5000/50V secs 0.25 (FTMS-101C)
secs 0.25 (JCI 140)
Tensile Strength (yield) (Mpa) 12.0 (ISO 527)
Tensile Modulus (Gpa) 60.0 (ISO 527)
Elongation at break (%) 450 (ISO 527)
Impact Strength:
Izod (J/m) DNB (BS 2873)
Hardness Shore A 85
Shore D 38
RECOMMENDED PROCESSING CONDITIONS
MACHINE
It is recommended that an in-line reciprocating screw machine be used to injection mould ECP 2242
CYLINDER TEMPERATURE
180-220°C. The optimum cylinder temperature will depend upon the size and complexity of the moulding.
MOULD TEMPERATURE
25-50°C. The optimum mould temperature will depend upon the size and complexity of the moulding.
MOULD DESIGN
Moulds should be designed to obtain rapid filling, and multiple gates for large area mouldings are recommended with the gate positioned to avoid possible formation of weld lines.
MACHINE AND MOULD WEAR
There is no evidence of any wear associated with this compound.
MOISTURE
ECP2242 can absorb moisture, therefore, prior to moulding please ensure thorough drying. Materials should be re-dried if all the material is not used within 2-3 hours of opening the bag. Excess moisture may show as splash marks on the surface of the finished mouldings. If necessary, the material should be re-dried. Typical drying conditions are 2-3 hours at 75 C
USE OF REGRIND
Runners, sprues and scrap mouldings can be reground and blended with virgin materials. Regrind additions should not exceed 10% by weight of the virgin material otherwise some reduction in properties may be experienced.
HEALTH & SAFETY
CAUTION – THIS MATERIAL IS ELECTRICALLY STATIC DISSIPATIVE
As this material does not have the insulting properties normally associated with polymers, due safety precautions must be taken in use and it is recommended that all products made from this material be suitably labelled.
information in this publication and otherwise supplied to users is based upon our general experiences and is given in good faith, but because of the particulars which are outside our knowledge and control and affect the use of the product, no warranty is given or is implied with respect to such information. freedom from patent rights must not be assumed.
