Non Destructive Testing // Developers
- D-106 lays on the surface in a thinner, more uniform, more absorbent coating
- Superior suspension properties. Long lasting flaw mark indications; less fading
- It is easily removed by light brushing or spray water rinse
- Works well on smooth or rough surfaces
- Can used on machined or coated surfaces
- Able to be used with both visible and fluorescent penetrants
- Evaporates very rapidly
D-106 developer consists of refined white particles suspended in a solution of isopropyl alcohol and acetone. This suspension produces enhanced sensitivity for locating tight flaws. D-106 developer pulls flaw-entrapped penetrant to the part surface for display against a white background by solvent and capillary action. Complies with low sulfur and low halogen requirements.
• SAE AMS 2644
• QPL – Form D & E
• MIL-I-25135 Revisions E
• ASME Code NDT, Sec V
• Lockheed Martin
• Pratt & Whitney FPM
• General Electric
• Rolls Royce
|Colour:||White Suspended Particles|
|Boiling Point:||180°F (82°C)|
|Flash Point:||53°F (11.7°C)|
1. Application: Apply penetrant only to clean, dry surfaces by spraying, flowing, brushing or dipping.
2. Dwell Time: A 10-minute dwell time is suggested, although in many cases five minutes will suffice. When particularly tight cracks are suspected, or the part is especially critical, the dwell time may be extended to 30 minutes, or longer. Allow the penetrant to drain from the part surface back into the penetrant tank to conserve material.
3. Removal: Use the appropriate washing method to remove the excess penetrant from the surface.
4. Developing: After agitating the D-106 suspension, evenly spray a light slightly wet coasting of developer onto the dry surface of a part. An overly wet application lacks full developing action. Two or three light applications work better than a single heavy application. Too heavy an application may conceal indications. If D-106 is to be applied with a paint spray gun, the spray gun should have a vaporizing tip, the spray tank should be pressurized to 15-30 pounds of pressure and have a stirrer to keep the powder in suspension.
5. Inspection: Inspect parts under appropriate light intensity.
|1529/42||3.8 litres (1 gallon)|
|1529/51||18.9 litres (5 gallons)|
|1529/64||208 litres (55 gallons)|