Search by :
3ak logo
MR logo
3k logo

MR®81T-R
Dry Developer Powder

MR®81T-R
Dry Developer Powder

MR®81T-R is a non-combustible, light, free flowing dry developer powder that is ideal for highly sensitive fluorescent penetrant processes which can be applied to oven-dried parts following the use of penetrants and forms a thin film on parts that enhances the visibility of ultra-fine discontinuities.

SKUPack SizeCase Size
2511-0028Bulk 1kg–
Computer man Computer man Computer man

  •   Even, thin developer coverage
  •   Enhances visibility of ultra fine discontinuities.
  •   Instant indications - high absorption effect
  •   Non combustible powder
  •   Easy to apply and easy to clean
  •   Free flowing powder
  •   Shows clear indications
  •   Non toxic
  •   Suitable for all metals (suitability for plastics & ceramics requires testing prior to use)

    Additional information
PropertiesAppearance – free flowing white powder
Chemical Composition – mixture of pigments
Basis – pigments
Odour – nil
ApprovalsQPL SAE AMS 2644
AMS 2647
ASME Code V; Art. 6
DIN EN ISO 3452
ASTM E165
ASTM E1417
RCC-M
ASME
Recommended UsageNDT Method – Dye Penetrant Testing
Form – d/e (EN ISO 3452-2); e (AMS 2644)
Compatibility – all Type 3 penetrants
; selective Type I penetrants
Area Coverage ~ 6 sq m (400ml nett Aerosol can) ; ~ 19 sq m (1 L)
Usage Temperature – 14°F to 131°F / -10 °C to +55 °C
Storage Temperature – 41°F to 113°F / +5 °C to +45 °C
Reference Test BlocksReference test block type 1 (Ni-Cr panel – 10µm
20µm
30µm & 50µm)
Reference test block type 2 (5-star panel)
ASTM test block (Aluminium comparator block)
TAM Panel
    How it Works
In non-destructive testing (NDT), a developer is a material that is used to enhance the visibility of surface-breaking defects or discontinuities. The developer is typically applied after a penetrant material has been applied to the surface of the material being inspected. The penetrant material will enter any surface-breaking defects or discontinuities (capillary action) and remain in the surface-breaking defects or discontinuities after the excess penetrant has been removed. The developer is then applied to the surface of the material, and it works by drawing the penetrant material out of any discontinuities or defects on the surface (reverse capillary mechanism). The developer forms a coating on the surface of the material, and it absorbs the penetrant material, which causes it to migrate to the surface and form a visible indication.
    GHS Category
Bulk Aerosol
 
    FAQs

Dry developer powder is a type of non-destructive testing (NDT) material used to develop latent defects on the surface of materials during the inspection process. Dry developer powder is typically made of a light-colored, finely ground powder, such as talc or chalk.

Dry developer powder is used to create a contrasting background for the detection of surface defects. The powder is applied to the surface of the material being inspected and is then allowed to settle into any cracks or voids. After a waiting period, the surface is inspected for visible indications of defects. It may be applied by dusting, spraying, or dipping. Dipping is the least preferred method of application as some indication scrubbing can result and developer can become contaminated quickly with penetrant. Electrostatic spray application is possible, but care is required to prevent excessive developer build-up which will mask indications. For best results, allow a minimum of ten minutes for developing time before inspecting.

The use of dry developer powder offers several advantages in NDT. It is an easy-to-use material that can be applied quickly and efficiently, and is ideal for very high sensitive fluorescent penetrant processes. Dry developer powder is also cost-effective, and can be used on a wide range of materials, including metals, ceramics, and plastics.

While dry developer powder is a useful material for NDT, it does have some limitations. For example, it may not be suitable for use on certain surfaces, such as rough or porous materials. Additionally, it may not provide adequate contrast in brightly lit environments for visible inspection.

Dry developer powder should be used in a well-ventilated area, and workers should wear protective gear, such as gloves and a mask, to prevent inhalation of the powder. The powder should be stored in a dry, cool place, and workers should avoid contact with the eyes and skin. Any spills should be cleaned up promptly to prevent slips and fall.