The Aerolub DPT (Dye Penetrant Testing) Kit is a reliable, portable Non-Destructive Testing (NDT) solution designed for rapid on-site detection of surface cracks, porosity, and leaks in welded joints, castings, and fabricated structures. Widely used across hydropower projects, fabrication workshops, and construction sites throughout Nepal, this three-part aerosol system delivers high-contrast visual flaw detection without requiring electrical power or darkroom UV lights.
This non-destructive chemical inspection system uses deep capillary action to draw visible red dye into surface discontinuities as fine as sub-micron cracks. Once the white developer powder layer is applied, the penetrant bleeds back to the surface via reverse capillary flow, creating bright crimson indications against an opaque white background for immediate visual assessment.


Includes dedicated cans for Surface Cleaner/Remover, Visible Red Dye Penetrant, and White Chalk Developer.
Accurately reveals hairline surface fissures, micro-porosity, weld laps, and pinholes.
Deep-penetrating formulation rapidly seeps into tight defects with sharp crimson bleed-out against the white developer
Brand: Aerolub
Inspection Method: Solvent Removable Visible Dye (Type II, Method C)
Packaging Type: Aerosol Spray Cans (400 ml / 500 ml)
Dwell Time: 5 to 20 minutes (depending on metal type and temperature)
Material Integrity Protection: Non-destructive chemical profile leaves base metals structurally sound and unaffected.
Corrosion Safe: Controlled halogen and sulfur formulations prevent stress-corrosion cracking on sensitive stainless steels and alloys.
Leak-Proof Canister Build: Reinforced aerosol tinplate construction prevents ruptures and pressure drops during rugged site transit.
Tamper-Evident Caps: Secure snap lids safeguard valves against accidental discharge during storage.