ND CHECK – 731 Solvent Based Cleaner

It is a Solvent based Cleaner sprays used in a process of LPI/DPI (Liquid / Dye penetrant inspection) the make sure the component which is to be clean is free from any kind of impurities and contamination. It removes and cleans all type of dirt, oil, grease or any loose scale from the test surface so that the surface is well prepared for LPI and it will not cause irrelevant or false indications due improper surface preparation.



Cleaning of a surface before the process of LPI /DPI on welds, turbines, reactor vessels, pipes, castings, billets, forging, Aluminum parts, gears, etc.


Apply ND CHECK SPRAY – 731 on the surface which is inspected by means of LPI / DPI. Within next 5 – 10 minutes you will have clean dirt free surface for application of ND CHECK SPRAY – 732(Penetrant). After application of Penetrant allow it to remain for a desired dwell time in a range of 10 – 60 mins to enable it to enter the cracks and crevices. Then use Lint free cloth damped by using ND Check – 731 for removal of the excess Penetrant from the surface. Does not use /apply the spray directly on the surface as it can remove the Penetrant from discontinuities and can lead to in proper results.


  • Its non-toxic and Non Corrosive
  • Free from Chlorine & Sulphur
  • Ensure effective cleaning and good coverage area
Appearance Clear
Color Colorless
Specific Gravity 0.80 ± 0.05
Odor Characteristic
Confirms IS-3658, IS-12889,
ASTM E-165 &
ASME Boiler &
Pressure Vessel
Code Sec V
Packing 500 ml / 325 gm
Toxicity Non-Toxic
Chlorine & Sulphur Free

PACKING: 500ml / 325 gm Eco-friendly Aerosol Sprays

Owing to evolving packaging solutions, the user is requested to kindly check the availability of a specific pack size prior to standardization.


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      Sinetec Technologies
      Tel: 04222446162