Pressure washers/sand blasting
 

I have read the spec. for a KARcher pressure washer and it includes a
sand blasting nozzle as an option. Any comments on this or other such
models ?

David wrote:
I have read the spec. for a KARcher pressure washer and it includes a
sand blasting nozzle as an option. Any comments on this or other such
models ?

I asked the same question here a few months ago: here's the answer for
you! http://tinyurl.com/5fmpg

David

Thank you Lobster for that, (cornish fisherman) ? To fill in a big gap
in my request, the idea is to clean timber, I make furniture from
scaffold boards, and what i would like is an effect similar to that
found with beach found timber. If sand blasting is rather messy is the
pressure itself enough to erode the wood, that is if it is high enough.

High pressure water will clean the wood and raise the grain if that's
what you are after. I doubt sandblasting would make much difference.

Dave

In article .com,
"Magician" says...
High pressure water will clean the wood and raise the grain if that's
what you are after. I doubt sandblasting would make much difference.

Sandblasting brings the grain into relief by removing the softer
wood, I suspect pressure washing just makes it swell and it will dry
out again.

In article .com,
says...
Thank you Lobster for that, (cornish fisherman) ? To fill in a big gap
in my request, the idea is to clean timber, I make furniture from
scaffold boards, and what i would like is an effect similar to that
found with beach found timber. If sand blasting is rather messy is the
pressure itself enough to erode the wood, that is if it is high enough.


I think you might be better off with an air driven sand blaster. The
Karcher is very messy.


--
Paul Mc Cann

Thank you for that Paul. As for the 'superglue' comment, seems like an
'Eastender' comment to me. How do you know what i know ? Could go on to
explain but as a professional furniture maker like yourself time is
precious.

David wrote in message
....
Thank you Lobster for that, (cornish fisherman) ? To fill in a big gap
in my request, the idea is to clean timber, I make furniture from
scaffold boards, and what i would like is an effect similar to that
found with beach found timber. If sand blasting is rather messy is the
pressure itself enough to erode the wood, that is if it is high
enough.

Yes, I think you will get exactly the effect you are looking for. We
sandblast timber regularly, almost always oak though, which would be
harder than your scaffolding boards. It gives a rough, aged sort of
effect. A bit more blasting would create a bigger difference in the
grain, more like beach timber. It is not ideal but people seem to prefer
to it to cut timber in old buildings, which otherwise shows regular saw
marks or would have to be planed and sanded. We replaced a big oak beam
in a house last week where the joists were still in good condition. The
joists are black since the room was originally used as a forge. The new
beam sticks out like a sore thumb! When the oak floor is down we will
sandblast the whole lot, including the underside of the floorboards.
There will still be a difference in colour but overall the effect will
be more uniform. One thought though, I wonder if this would be suitable
for furniture since the rough surface would be prone to collecting dust,
making it harder to clean.

--
Holly, in France.
Holiday home in the Dordogne,
website: http://la-plaine.chez.tiscali.fr

Holly, in France wrote:
We
sandblast timber regularly, almost always oak though, which would be
harder than your scaffolding boards. It gives a rough, aged sort of
effect.

IMO it copmpletely ruins timber.


We replaced a big oak beam
in a house last week where the joists were still in good condition. The
joists are black since the room was originally used as a forge. The new
beam sticks out like a sore thumb! When the oak floor is down we will
sandblast the whole lot, including the underside of the floorboards.
There will still be a difference in colour but overall the effect will
be more uniform.

Why not blacken the replacement, instead of spoiling the lot?

One thought though, I wonder if this would be suitable
for furniture since the rough surface would be prone to collecting dust,
making it harder to clean.

Quite.

Holly, in France wrote:

marks or would have to be planed and sanded. We replaced a big oak
beam
in a house last week where the joists were still in good condition.
The
joists are black since the room was originally used as a forge. The
new
beam sticks out like a sore thumb! When the oak floor is down we will
sandblast the whole lot, including the underside of the floorboards.
There will still be a difference in colour but overall the effect
will
be more uniform. One thought though, I wonder if this would be
suitable
for furniture since the rough surface would be prone to collecting
dust,
making it harder to clean.

would suggest talking to these people before going ahead.
http://www.periodproperty.co.uk/cgi-...sing/forum2.pl

NT

wrote in message
oups.com...
Holly, in France wrote:

marks or would have to be planed and sanded. We replaced a big oak
beam
in a house last week where the joists were still in good condition.
The
joists are black since the room was originally used as a forge. The
new
beam sticks out like a sore thumb! When the oak floor is down we
will
sandblast the whole lot, including the underside of the floorboards.
There will still be a difference in colour but overall the effect
will
be more uniform. One thought though, I wonder if this would be
suitable
for furniture since the rough surface would be prone to collecting
dust,
making it harder to clean.

would suggest talking to these people before going ahead.
http://www.periodproperty.co.uk/cgi-...sing/forum2.pl

Couldn't see anything about sandblasting. Did you mean the thread on
darkening oak using ammonia? Will certainly look into that for future
reference, thanks.
--
Holly, in France.
Holiday home in the Dordogne,
website: http://la-plaine.chez.tiscali.fr

Chris Bacon wrote in message
Holly, in France wrote:
We
sandblast timber regularly, almost always oak though, which would be
harder than your scaffolding boards. It gives a rough, aged sort of
effect.

IMO it copmpletely ruins timber.

Fair enough. What would you recommend should be done on green oak beams,
joists etc? The economics of the job would make using anything other
than machine sawn timber too expensive for most people we deal with, and
the saw marks do remain quite visible. Most people seem to prefer them
sandblasted.

We replaced a big oak beam
in a house last week where the joists were still in good condition.
The
joists are black since the room was originally used as a forge. The
new
beam sticks out like a sore thumb! When the oak floor is down we
will
sandblast the whole lot, including the underside of the floorboards.
There will still be a difference in colour but overall the effect
will
be more uniform.

Why not blacken the replacement, instead of spoiling the lot?

The whole room is, or was, filthy with soot. It is also a
small room with the floor below road level with only one window and a
solid wooden double door which planning restrictions wouldn't allow to
be changed. The client wants to use it as a dining room or studio
eventually and she wants it brighter. We might end up darkening the new
beam a bit because it will still be lighter than the joists for a long
time to come, but that is up to her.

--
Holly, in France.
Holiday home in the Dordogne,
website: http://la-plaine.chez.tiscali.fr

No I meant sandblasting. :)

NT

wrote in message

No I meant sandblasting. :)

It would be helpful if you quoted who and what you are replying to!
Having messed about with the view, I see it was me. :-) Maybe it is more
obvious in googlegroups? Give me a clue, where on the page is it please?
There is a huuuuugee long list of threads. The ammonia thing was
interesting anyway, thanks:-)
Holly

Holly, in France wrote:
wrote in message

No I meant sandblasting. :)

It would be helpful if you quoted who and what you are replying to!
Having messed about with the view, I see it was me. :-) Maybe it is
more
obvious in googlegroups?

ok, point taken.

Give me a clue, where on the page is it please?
There is a huuuuugee long list of threads. The ammonia thing was
interesting anyway, thanks:-)
Holly

its not on that page, you need to search for threads on sand blasting.
You'll find a wealth of good info on it.

If you cant find it, just ask them about it.


NT