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D. P. Testing Steps

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  1. Pre-clean inspection area with CLEANER SC-30TM to remove oil, grease or with wire brush to remove Scale, rust for easier penetration.
  2. Spray or brush with PENETRANT SC-10TM Allow penetration time as per table below.
    Area coverage 50Sq mts/ lit. appox.
  3. Wipe Surface Clear, using Cloth Soaked in CLEANER SC-30TM, Taking care. Penetrant from defect should not be removed
  4. Shake the Aerosol can vigorously or stir the bulk developer. Spray DEVELOPER SC-20TM in thin, uniform film, from a distance of 8 to 12 inches and 6-8 short sections at a time. Allow to dry.
    Area coverage 25 Sq mts/ lit. appox.
  5. The vived red colour combined with better capibility action results in sharply defined flaw indication

The Dye-penetrant method of in spection with flaw test System may be used on materials Such as Aluminium, Magnesium, Barss, Copper, Cast Iron, Steel, Stainless Steel, Ceramic & Certain Plastics.
Minimun Penetration Time For Penetrants, For Parts-Having Temperature of 15oC to 35oC

Meterial From Type of Discontinuity Penetration Time (Min)
Aluminium Casting Porosity 5 to 10
Cold Shuts 5 to 10
Welds All Lack of Fution 5
Cracks 10
Magnesium Brass & Bronze Casting Porosity 5 to 10
Cold Shuts 5 to 10
Welds Brazed Parts All Lack of Fution 10
Porosity 10
Cracks & Fatigue Craks 10 to 20
Steel Casting Porosity 10
Cold Shuts 10
Eztrution & Forging Welds All Lack of Fution 20
Porosity 20
Cracks 20
Fatigue Craks 20
Carbide Tip Tools I Lack of Fution 5
Porosity 5
Cracks 10
Titanium & High Temp Alloys All 20
For Lower Temperature Penetration Time to be Incraesed

  • Each of above product is available in standard 300 gms aerosol cans or 1 & 5 litres carbouys
  • Due to continuos development. We reserve the right to modify specification without notice
  • Flaw test must be used in a well ventilated space such that Vapours are carried away

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