High Density Polyethylene (HDPE)
We utilise Hoechst slurry polymerization technology, which was originally derived from Hostalen. A technology agreement with Lyondellbasell allows for further updates of the technology as might be needed to meet the requirements of the market.
HDPE is polymerized from ethylene to produce a plastic with excellent stiffness and environmental stress crack resistance. It has superb chemical resistance and low water absorption and is easily processed and machined. The main applications of HDPE include blow-moulded containers, crates, drums, blown film and pipe. It is ideally suited to food contact applications.
Safripol also produces a HDPE containing carbon black for the pipe industry which is conforming to PE 100 pipe specification.
iMPACT 100® is a black High Density Polyethylene resin designed for all dimensions of PE100 pressure pipe where transportation of potable water, gas, effluent, slurry and certain chemical substances is required. It is a bimodal high molecular weight resin with excellent processing characteristics, impact strength and good resistance to environmental stress cracking, abrasion, chemical attack and UV radiation.
iMPACT 100® complies with:
Pipes for:

High Density Polyethylene for Compression Moulding Applications
Safrene® E 4055 is a High Density Polyethelene Resin suitable for Compression Moulding applications. Safrene® E 4055 has excellent mechanical strength, toughness, optimum viscosity (flow) and excellent Environmental Stress Cracking Resistance (ESCR) properties. It is especially suitable for the production of carbonated soft drink closures.
Safrene® E 5560 High Density Polyethylene Resin is designed for compression moulding applications. Having excellent mechanical strength, toughness, environmental stress-crack resistance and good processability, it is especially suitable for the production of carbonated soft drink closures.
Blow Moulding Applications
MFR (190°C/5kg): 1.7 g/10min
Density: 0.950 g/cm3
Safrene® F 7650 High Density Polyethylene Resin is a medium molecular mass grade with good processing properties. It exhibits good impact strength and environmental stress-crack resistance.
Safrene® F 7650 High Density Polyethylene Resin is recommended for all general purpose applications up to 20 litre in volume.
Safrene® H 4765 High Density Polyethylene Resin is a bimodal medium molecular weight blow moulding grade with good processing properties. It is recommended for small part blow moulding applications up to 20 litres in volume where good impact, excellent stiffness and environmental stress-crack resistance are required.
Safrene® M 6650 High Density Polyethylene Resin is a bimodal high molecular weight grade specifically designed for extrusion blow moulding of containers greater than 20 litres in volume. It has a high melt viscosity and is primarily recommended for use on modern generation equipment.
Safrene® M 6650 High Density Polyethylene Resin exhibits outstanding impact strength, high rigidity and excellent environmental stress-crack resistance. It is particularly suitable for drum applications between 50 and 250 litre and satisfies the requirements of SABS 1176 for the transportation of dangerous goods.
Safrene® M 7055 High Density Polyethylene Resin is a high molecular weight grade which exhibits high stiffness, good melt strength, easy processing and excellent impact resistance.
Safrene® M 7650 High Density Polyethylene Resin is a bimodal high molecular weight grade suitable for extrusion blow moulding of containers greater than 20 litres in volume. It has high rigidity and hardness with very good impact strength and excellent environmental stress-crack resistance properties.
Safrene® M 7650 High Density Polyethylene Resin is primarily designed for the blow moulding of large hollow articles but may be used for smaller mouldings where exceptional environmental stress-crack resistance and impact strength are required.
Safrene® M 9255F High Density Polyethylene Resin is a high molecular weight grade which exhibits high stiffness and excellent impact resistance at low gauges. It processes well on most modern generation extruders and can be drawn down as low as 5 micron.
High Density Polyethylene for Extrusion Applications
Safrene® F 7740F3 Density Polyethylene Resin is a medium molecular mass extrusion grade ideally suited to the extrusion and subsequent knitting of tapes and monofilaments typically used in agricultural pockets and shade netting.
Safrene® F 7740F3 Density Polyethylene Resin is also used for film extrusion applications where excellent roll geometry is required. As a film it exhibits an excellent barrier to moisture.
Case Studies