Puncture Paint Remover Can
An aerosol can on a workbench was accidentally
punctured when particles from a brushing operation flew across the bench
and struck a pressurized can containing flammable paint remover. The
technician, at another laboratory, was in the process of removing paint
from a large hook in preparation for a magnaflux inspection, (figure 1
below). When the worker started brushing the hook with the power brush a
particle projected across the table striking and puncturing the can
(figures 2 and 3) about 1 inch up from the base. This caused the
contents to violently spew from the can while it spun wildly on the
bench. The liquid sprayed the employee around his head, shoulders and
back. The employee moved quickly to the wash basin in the shop and
thoroughly rinsed himself off. This action along with the protection of
his PPE (safety glasses, hard hat and shirt) contributed to the employee
experiencing only slight chemical burns on the upper portion of his
This unexpected puncture of an aerosol can could have resulted in a very
extensive and serious burn injury had the contents ignited as it spewed
from the can and the employee become engulfed in a cloud of fire.
When conducting work that could generate flying metal particles, make
sure that aerosol cans or other pressurized vessels are moved away from
the immediate work area, or are placed in an appropriate storage area or
Note: I have come across similar incidents with wire brushes, the
strands will come off and in-bed themselves in all sorts of things and
they do like flesh! but its not just the strands, particles fly off at a
considerable speed from all sorts of grinding and brushing operations.
Typical speed ranges for electric hand held grinders and brushes are
between 6,000 to 15,200 rpm. Notice fig 2 is air powered and often have
a lower rpm operating speed - and still had an impact.
Q. So what is the flying speed of the particles?
Brush in use
The punctured can