Argon/CO2 mix for MIG

[Dave Plowman (News)]

One other quick question. Does paint, wax etc on the back of the panels
being welded have an adverse effect on the weld - even although the fronts
and faces are shiny clean?

--
*To steal ideas from *one* person is plagiarism; from many, research*

Dave Plowman dave@davenoise.co.uk London SW
To e-mail, change noise into sound.

[Willy Eckerslyke]

Dave Plowman (News) wrote:

> One other quick question. Does paint, wax etc on the back of the panels
> being welded have an adverse effect on the weld - even although the fronts
> and faces are shiny clean?

It certainly has an effect on the welder, i.e. me! Burning paint sets me
off sneezing for the rest of the day. (Never weld in an unventilated area.)
As for the weld itself, if there's enough wax or paint to melt and run
into the weld then it can be detrimental, but small quantities will
simply burn off without effecting the quality noticeably.

Incidentally, if you manage to set fire to the underseal or whatever,
before running for a bucket of water, remember that you're actually
holding a fire extinguisher in your hand. A squirt of MIG gas sent with
the trigger pressed enough to release the gas but not enough to switch
on the power will quickly put out most flames!

[Willy Eckerslyke]

Dave Plowman (News) wrote:

> One other quick question. Does paint, wax etc on the back of the panels
> being welded have an adverse effect on the weld - even although the fronts
> and faces are shiny clean?

It certainly has an effect on the welder, i.e. me! Burning paint sets me
off sneezing for the rest of the day. (Never weld in an unventilated area.)
As for the weld itself, if there's enough wax or paint to melt and run
into the weld then it can be detrimental, but small quantities will
simply burn off without effecting the quality noticeably.

Incidentally, if you manage to set fire to the underseal or whatever,
before running for a bucket of water, remember that you're actually
holding a fire extinguisher in your hand. A squirt of MIG gas sent with
the trigger pressed enough to release the gas but not enough to switch
on the power will quickly put out most flames!