Our aim at West Coast Poly is the selection of the most cost effective long-term solution to your storage requirements and without the right information we can't do our job properly. Please use the checklist that follows, it will help us to provide you with the best and most economic tank for your purpose.

What Type of Chemical
The selection of a resin system will depend on the nature of the chemical to be stored. This selection will be carried out by reference to published chemical resistance tables and/or reference to industrial chemists experienced in the area. It is advisable to provide MSDS certificates where uncommon chemicals or mixtures of chemicals are involved. Any historical data you may have is always useful, i.e. what sort of containers do you buy the chemical in?

Concentration
Resin selection may change with the concentration of chemical, what is suitable at a 5% concentration may not be at 50%, so always list the concentration.

pH & SG (Specific Gravity)
Always include these two important parameters as they influence not only the type but also the quantity of material required to make the tank.

Temperature
The suitability of a particular resin is dependent on the temperature it will encounter. In general rotomoulded polyethylene with a moulded density between 0.935 and 0.94 should not be subjected to liquid temperatures below minus 20 deg C or above 40 deg C. It should also be noted that the aggressiveness of many chemicals increases as temperature increases.

Pressure or Vacuum
Tanks are typically manufactured for hydrostatic loading only and should not be subjected to pressure or vacuum.

Bunding
Where the chemical to be stored is classed as dangerous or environmental considerations dictate, customers should make themselves aware of the bunding and safe handling requirements set down by the relevant authorities.

Installation Environment
Tanks are generally designed for external installation at ground level in a non-hazardous environment. They must be fully supported across their entire base area, (refer separate installation sheet for details). If your tank is to be inside or close to a building, elevated above ground level, partially or totally buried, located in a traffic area or in any other situation, which increases the level of hazard, you should advise us so that an additional safety factor can be applied.

Additional Hazards
Areas of high wind, cyclone susceptibility or seismic activity are the most common additional hazards, however, flooding, soil subsidence, feral animals, caustic cleaning solutions and many other factors can play a part. You are the best judge of the hazards in your environment, so please inform us, "we can't provide for something we don't know about".