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Conversion to EcoFlex is Easy

EcoFlex solvent performs equally well in rotary and inline equipment. In virtually all cases, normal factory brush setting or current brush setting, are correct for EcoFlex. EcoFlex solvent is compatible with popular nameplates such as Photomeca, Anderson Vreeland, and Kelleigh. In almost all cases there is no need for retrofit with specialized hoses and tubing. Listed below are materials that are compatable with EcoFlex and those that are not.

Preferred tubing materials include: PTFE, Viton, Tygon, Fluran, Polypropylene, XLPE, HDPE, Nylon, and stiff one piece Polyurethane.

Tubing not recommended includes: Butyl Rubber, Latex, Natural Rubber, Neoprene, or Silicone.

Double wall reinforced Urethane hoses have provided long service life in most applications, however should be monitored, over a three-week period, for signs of degradation.

To take advantage of the low odor characteristics, it is important to thoroughly evacuate the previously used solvent from your equipment. Although there is no incompatibility with any of the popular competitive solvents, in some cases a 5% contamination level into EcoFlex may result in tainting the odor of EcoFlex in a noticeable direction towards the previous solvent.

Washout equipment without a vacuum still can be converted in a relatively short period of time. A typical rotary unit may take only 45 minutes to an hour. Inline equipment may take an hour to an hour and half. Typically the wash and rinse tank hose pick up do not reach the bottom of the tank. Therefor by merely pumping with the installed washout unit pumps as much as 5-10 gallons of solvent may remain below the pick up. An ordinary hand drum pump or an air powered, diaphragm pump are useful in evacuating the bottoms of these tanks.

For those with distillation plumbed into a closed loop system, a little bit of pre-planning will shorten the conversion cycle. Operate the system down to the minimal solvent prior to conversion. In other words, donít add any new solvent into the system, more than you have to run production. Pump the remaining solvent in the dirty solvent wash tank to the dirty holding tank of the still. Run a distillation to empty out the dirty still holding tank as far as you can. Dump the still bottom. Pump out the recovery or clean solvent holding tank, preferably to an original drum. The holding tanks normally will have a threaded drain plug to evacuate the balance of solvent from these tanks. This procedure will take roughly 3 to 4 hours, depending on whether the wash out unit is an inline or rotary, including distillation equipment in the loop. It is not feasible to evacuate every last drop of solvent out of the pumps, sags in hoses, and so forth. However, a good thorough is necessary to proceed with guarantee of performance in place.

Water should never be used to rinse tanks or flush any lines or hoses. Water is a contaminant to EcoFlex. Water will settle to the bottom within a volume of EcoFlex, however will take active components of the EcoFlex solvent with it.

Follow all manufacturer recommendations for purging the distillation equipment of the previous solvent. It is likely that a higher level of exposure to the previous solvent will be encountered, while purging the system. Use the appropriate personal protection devices recommended for that solvent.

Once the system has been purged of the old solvent, pump the new EcoFlex solvent into the system. Turn off any heating devices that may have been used with the previous solvent. Adjust your washout times to 30% less than what you ran with the previous solvent and run. A 30% reduction is a good starting point, in many cases the washout times should be even less. For those with in-house distillation equipment refer to the section on distilling to reset the thermal oil temperature, high vapor temperature alarm setting, etc.

Congratulations, your on your way to running a your equipment with enhanced performance from EcoFlex.

[Material Safety Data Sheet for EcoFlex solvent]

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