I'm getting some galvanising done in the next month.
There is a miniumum order charge that will do up to 50Kg in a batch.
Items need to be cleaned of all paint first.
My batch will be around 20kgs tops so I will have 30kgs or so spare
Anyone in travelling distance of Southampton want to club together to
make up the weight??
Drop me an email bobdotminchinatntlworlddotcom
when i want galvanising done i take my stuff to local fab shop and
they add it to their weekly pick up
you want to do a good degreasing as well as paint removal ...and make
sure you get the soot off the welds.
as their methods of degreasing and soot removal will be lacking
because they only dip .........and don't agitate with a paint brush
like you would yourself
as seen here
and make sure any enclosed box is vented .....make sure that the
galvanising solution can enter , completely fill the box and drain out
of the box no matter what way up it is put into the tank...because
they wont care.
put in holes or hooks on weldments so that they can suspend the work,
so their chains etc don't lie against the work.........they also tie
your work up with a pile of other peoples work......so think out what
all the best.markj
Hot Dipping is what they say on their website.
The company is Wessex Galvanising in Eastleigh
I called in today and asked about getting stuff galvanised and they did
not offer options.
Can you explain the difference please Mark.
Electroplated zinc can give a layer almost as bright as chrome, but usually
very thin. Hot dipping gives a decently thick layer that isn't as pretty but
much better if the primary aim is corrosion. There can be variations in the
thickness achieved with hot dipping as well, I believe that they tend to put a
layer of charcoal/coke on top of the bath to help wipe off surplus zinc as
well as reducing oxidation of the top of the bath. Different quantities of
lead can be added to the zinc to change its fluidity as well.
Not that you as a small punter get any choice in the matter, but presumably if
you had a few miles of lamp posts a day to do it would make a difference:-)
Sounds like hot dip is what I need. I don't mind what it looks like but
I don't want it rusting away. The items will be outside 24/7. I't be
putting effort into making the things and don't want to see them
dissolve with time.
I've used commercial items claiming to be "bright Zinc Plated" BZP such
a screws and hinges and they rust after few years.
We have a couple of fabrication companies locally so I'll ask them about
hitching a ride on their orders too.
We get a lot of stuff shot blasted and Zinc Sprayed before powder coating.
That's as good as you'll get on used steelwork, new stuff you can get hot
dipped, but the finish on used is very variable and may need pickling first to
clean out any rust.
Our trailer has done 10 years out in all weathers and no rust, even where the
powder has chipped off in places.
We use the process for new outdoor cabinets as well as for refurbing older
Peter A Forbes
Prepair Ltd, Rushden, UK
My application is new work. I asked about the need shot blasting but
they say their processing works fine on black 'iron' as it comes from
t'mill. I'll possibly put the angle grinder with a wire brush over it
all before sending it off.
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