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Storing Rubber Lined Equipment

IMG00266-20140122-0919

 

ALL-WEATHER STORAGE

1.   Rubber linings should never be exposed to direct sunlight or direct outdoor weathering, for periods longer than a few days.   All other linings should be protected from sunlight. If no other alternatives are possible, linings should be periodically painted with Age Guard.

 

 SUMMER STORAGE

1.   If possible, store in shaded areas away from direct sun exposure.

2.   Paint outside of tanks with aluminum or white paint, or cover with a tarpaulin.

3.   Closed tanks should be kept ventilated.

4.   Tanks to be stored for long periods after having been in service, should be partially filled with a diluted solution of the chemical they were designed to contain (a 1-3% concentration probably will be sufficient).

5.    For piping, the ends to be capped at all times before going to service.  Helps protect against the weather and damage that may occur on site

 

 WINTER STORAGE

1.   Equipment should be protected as much as possible from the elements by covering with tarpaulins, erecting temporary shelters, etc.

2.   Tanks containing solutions must be emptied if temperatures drop below the freezing point (of the solution contained therein).

3.   Equipment should be handled very carefully and protected from subjection to external forces (sudden blows, flexing, twisting, etc.). Sudden temperature changes also are to be avoided. These precautions are most important for linings with a hard durometer.

 

 IDLE OR STANDBY EQUIPMENT STORAGE

1.   Idle or standby equipment (especially semi-hard lined) should be protected against excessive drying out and temperature changes. The best way to accomplish this is to fill the tanks with a 1-3% solution of acid, preferably H2S04, and hold at ambient temperature. This will help keep the lining more flexible and minimize the expansion and contraction problem as well as decrease the possibility of thermal shock when the equipment is put back into service.

2.   If the diluted solution is not optioned, then apply Age Guard to the rubber linings once per year the lined equipment is idle.***Note: All idle equipment should be inspected prior to being put into service.

 

Any questions please contact RubberSource @ 519-830-0546 / buck@rubbersource.ca

Rubebrsource

Buck Meadows / Rubber Technologist

Technical Sales Manager

RubberSource

 

 

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Shelf Life Of Uncured Protective Rubber Linings

Commercial-Grade-Rubber-Sheet

In determining the shelf life of uncured rubber linings, several instances but be understood:

  1. The level of heat memory built into a compound (ex. Synthetic Rubber takes more heat to break down than a Natural Rubber)
  2.  The lower the storage temperature, the longer the rubber lining will be useable.

As a rule of thumb the average uncured rubber linings (NR, IIR) will have a shelf life of approximate shelf life of 9 to 12 months if stored at a temperature of 10°C (also out of sunlight).  If the linings are stored at a lower temperature the rubber lining will much longer the 12 month period.  Please note that Neoprene (CR) and Nitrile (NBR) compounds have a typical shorter shelf life than the above mentioned compounds.  In dealing with these compounds a great of caution is to be used as they can cure much faster.  If storing rubber at a lower temperature that the recommended 10°C  the rubber may become frozen, if this was to happen the roll will need to be unrolled and left at an ambient temperature for 2 weeks to thaw the rubber.  After the 2 week interval the rubber will need to go on a hot table to help facilitate any shrink that might of occurred during the freezing process.

Any Questions please contact RubberSource @ 519-830-0546.

Rubebrsource

 

Buck Meadows / Rubber Technologist

Technical Sales Manager

RubberSource