Materials and Processes Specification
Materials and Processes Specification
(OP)
A change just arrived,
was:
- Shop life - 40 dasys
is:
- Shop life - out time 15 days, mechanical life 40 days
what means "mechanical life 40 days"?
was:
- Shop life - 40 dasys
is:
- Shop life - out time 15 days, mechanical life 40 days
what means "mechanical life 40 days"?





RE: Materials and Processes Specification
Out-time is time the material is out of the freezer until it is encased in the final vacuum bag for cure.
Mechanical life is the time the material is out of the freezer until it is put into the autoclave/oven for cure.
The change essentially requires the material to be laid-up within 15 days, but it can sit under a vacuuum bag out of the freezer for another 25 days until it is cured.
Some details related to these definitions vary between spec's.
RE: Materials and Processes Specification