NDT Chemicals
Dubl-Chek HM-3A Fluorescent Penetrant, Water-Washable, Level 2
SKU: HM-3A
Brand: Sherwin
Pricing on request
Specifications
| Part Number | HM-3A |
|---|---|
| Material | Fluorescent penetrant, water-washable (Type 1) |
| Compliance | SAE AMS 2644 (QPL) Type 1, Method A, Level 2; MIL-I-25135 Rev C, D & E; ASME BPVC Section V |
Description
HM-3A is a medium-sensitivity (Level 2) fluorescent penetrant of the water-washable Method A type. The green liquid fluoresces yellow-green under UV-A light. Sherwin highlights near-zero background, sharp indications, good electrostatic spray capability and low drag-out thanks to low viscosity. Its flash point is 220°F (104.4°C).
The manufacturer describes it as a general-purpose penetrant for castings, extrusions and similar parts in materials including aluminium and magnesium, used by aerospace, airframe, turbine engine and missile manufacturers.
Angad Aviation supplies this product with full traceability and documentation — request a quote for current pricing, pack sizes and lead time.
- Manufacturer: Sherwin Inc.
- Part No.: HM-3A
- Classification: AMS 2644 Type 1, Method A, Level 2
- Colour / fluorescence: Green / yellow-green
- Viscosity: 6.46 cSt at 100°F
- Water tolerance: 15%
- Flash point: 220°F (104.4°C)
- Typical pack sizes: 1 gal and 5 gal can; 55 gal drum
Frequently asked
What sensitivity level is HM-3A penetrant?
HM-3A is a Level 2 (medium sensitivity), Type 1 fluorescent penetrant for Method A water-washable processing, listed by the manufacturer against SAE AMS 2644 and its QPL.
What dwell time does Sherwin suggest for HM-3A?
The manufacturer suggests a 10 minute dwell, noting five minutes often suffices. For tight cracks or critical parts the dwell can be extended to 30 minutes or longer.
Can I get the technical and safety data sheets?
Yes. Ask for the current manufacturer technical data sheet and safety data sheet when you request a quote.
How do I order HM-3A?
Request a quote with the part number, quantity and delivery country. Angad Aviation confirms availability, pack size and delivery terms. Every order ships with full traceability and documentation.
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