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Comparison with HMW/HDPE Carboys with Ms Barrels


HMW-HDPE DRUM PACKAGING – THE MODERN ALTERNATIVE

Rigid packaging of bulk materials had undergone a sea change over the past several years. The norm has traditionally been packaging in MS Drums for liquids, and in open mouth steel drums for powders, lumps, other solid forms and viscous liquids. With the rapid development in polymer science over the past decade however combined with growing consumer awareness and improved raw material availability a move towards better packaging has been triggered off and has gained rapid momentum, HMW-HDPE carboys and Jerrycans have proven themselves the logical alternative.

High Density Polyethylene, known commonly as HMW-HDPE, particularly in its High Molecular Weight form has become the wonder plastic polymer of the packaging industry over the past decade. Extruded as a tape it is woven into extremely durable woven sacks. Blown into film it is then fashioned into bags for various applications. Blow moulded into containers it becomes possible to fashion packaging with virtually no restriction on shape or size. HMW-HDPE can easily coloured, printed or processed. It is lightweight, durable, chemically inert, stable, with a high Environmental Stress Cracking Resistance (ESCR) quotient and available in grades covering diverse applications and end uses. It is logical therefore that drums manufactured out of HMW-HDPE have gained universal acceptance internationally, and are increasing their market share rapidly in India as well.

A Table comparing HMW-HDPE Drums with MS Drums is given below.

HMW-HDPE Drums

MS Drums
Considerable design flexibility. No Design Flexibility Cylindrical shapes Possible only.
Reusable Can be reused but at additional cost
Light Weight thereby saving in terms of Energy and Cost for transportation.
210 Ltr. Container: 9-9.8 Kgs.
100 Ltr. Container: 4.5-5.0 Kgs.
 Heavy, more energy required to handle and increases transportation cost.
210 Ltr. Container: 18-22 Kgs.
100 Ltr. Conatiner: 9 Kgs.
Single Step Construction, resulting in smooth clean inner surfaces. Many manufacturing operations of which most are manual, which could lead to foreign matter remaining in the barrel
One Piece seamless construction. Therefore possibility of leakage minimized. No Need for Liners to Pack Low Viscous Liquids as drums are double layers i.e. Inside white without pigment and outide coloured. Welded Joints therefore increases possibility of leakage.Therefore liners are required to pack Viscous Liquids.
Inert to reaction with most chemicals. However a very few reactive chemicals cannot be packed in HMW-HDPE. Corrosive products require epoxy lined drums.
Flexibility and good impact resistance, Dents are temporary and drums regain normal shapes automatically. Dents are permanent which results in chipping of paint and inner epoxy coating resulting in corresion.
100 % emptying or total emptying incase of 210 Ltr. Drums for liquids packing as mouth openings are on the Pheriphery. Handles are also provided on Top for much easier handling. No such arrangement provided.
Direct Sun Light is less effective for Heat transfer. Direct Sun Light Transfers Heat Instantly.
Prices are higher but finally have a higher Re-sale value. Prices are Little lower by about 10 %. But have lower Re-Sale value.
Eco - friendly and easily re-cyclable. More than 95% of the material can be achieved from the used drum. Un-friendly Environmentally and requires Exothermic Process to recycle. Less than 40 to 50 % of the material is obtained on Recycling.
Integrally Coloured Painting is necessary
.Excellent filling lines and handling system have been developed for these packaging system. Good filling lines and handling systems are being developed
Long Life Rust in course of time and through exposure to the elements.
The reconditioning process involves only cleaning and proper washing. Reconditioning of used drums is expensive and laborious.
Certainty of Timely Production and quantity can be assured as the process is fully automatic. As certain Processes require manual operations production and quantity cannot be assured.