MAGNAVIS 1 GREY MAGNAVIS 3A BLACK MAGNAVIS 8A RED0 pages

Product Data Sheet

MAGNAVIS 1 GREY
MAGNAVIS 3A BLACK
MAGNAVIS 8A RED

DRY MAGNETIC PARTICLES

General Description
Magnavis 1 Grey, 3A Black and 8A Red powders are ready to use, free flowing general purpose, dry method, colour contrast
magnetic powders. These powders are used to locate surface and slightly subsurface discontinuities in ferrous structures.
1 Grey – a grey or off-white coloured powder, which produces sharp colour contrast indications on dark backgrounds
backgrounds.
3A Black – a ‘dustless’ blue-black powder ideally suited to produce clear sharp indications on shot peened or
black
sandblasted surfaces with light backgrounds
backgrounds.
8A Red – a dark red coloured iron powder which provides a strong contrast on most surfaces and coloured
loured
backgrounds.

Applications
Typical applications include welds, large forgings and castings, and where rough surfaces are encountered

Composition
The dry magnetic powders are composed of selected magnetic powders and pigments.
.

Typical Properties (not a specification)
Property
Form
Colour
Particle size (average)
SAE sensitivity
Upper temperature limit*

1 Grey
Free flowing powder
Light grey
180 microns
7
390 °
C

3A Black
Free flowing powder
Blue/black
180 microns
7
315 °
C

8A Red
Free flowing powder
Dark red
180 microns
7
315 °
C

*Temperature limits are not intended to imply that the material will not form magnetic particle indications above the specified temperatures.
However, particles at elevated temperatures for a period of time may be altered in colour, sintered together or emit smoke. P
Particles heated
to 480° or passed through a flame will smoulder or spark.
C

Like all Magnaflux materials Magnavis 1 Grey, 3A Black and 8A Red dry magnetic powders are closely controlled to provide
unique batch to batch consistency and uniformity to assure optimum process control and inspection reliability.

Product Data Sheet Magnavis 1 Grey, 3A Black, 8A Red page 1