Coloration cloth band for safety of piping

  • Acid Band

  • Alkali Band

Where hazardous liquids or gases such as acids or alkalis flow in piping, small leaks occur initially.
But if overlooked, they erupt in large quantities and cause big accidents.
Early detection is critical point for prevention of leakage accident.

If only critical (tend-to-leak) areas are addressed, many accidents can be prevented at low cost.
Most leaks occur from flanges and valves due to packing fatigue or uneven bolting.

If Acid Band or Alkali Band are pre-wrapped around critical areas, they absorb leaked liquid and gas and change colors to detect the accidents.
So to speak, they are similar to inorganic Litmus test paper.

  • In case of non-use
  • In case of use

Acid Band turns from reddish brown to white or yellow when exposed to acidic liquids or gases
for example :
hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, oxalic acid, acetic acid, sulfurous acid gas etc. (under pH 2)
Reaction time can range from minutes to days according to absorbed liquid or gas.

  • Before color change

  • After color change

Alkali band turns from light green to blue, purple, black, etc. when exposed to alkaline liquids and gases and others for example :
Sodium hydroxide solution, sodium hypochlorite solution, ethylenediamine solution, diethylenetriamine solution, hydrogen peroxide water, ammonia water (liquid gas), hydrogen sulfide gas etc.
Reaction time is some seconds.

25 mm x 10 m
Polyester fiber, Inorganic pigment

They can be attached easily and firmly.
You can wrap them around even oily and soiled area without any tools as follows:
1, Wrap around at least one time.
2, Cut in needed length with fingers
3, Press the cut edge on wrapping band itself

  • 1

    Wrap around at least one time.

  • 2

    Tear off with fingers.

  • 3

    Press the end of band to itself.

On the other hand, they can be removed if you peel off the cut edge upward and can be reused.

They can be used outdoors because they are resistant to ultraviolet rays and do not discolor when wet.

They adsorb liquid and prevent splattering and dripping.
Even if a leak occurs from the opposite side of observation position, it can be easily detected because whole band changes its color by capillary phenomenon.

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