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Oxidiser - engraving blacking tutorial.


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Infilling using Gravoxide

 

WARNING! Gravoxide is an irritant to eyes and skin, if you come into contact wash with water immediately.

 

There has been some talk on the forum about fumes from enamelling brass engraved plates so I thought I’d show you the way I do it! It might be teaching some to suck eggs but some members new to engraving might find it interesting.

 

Gravoxide works by quickly blackening engraving by oxidising the brass, do not leave the nice applicator in the bottle it will eat it!

 

What you need

 

1 x bottle of Gravoxide or equivalent.

1 x cotton bud

1 x polishing stick

1 x duster

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The method

 

Engrave you plate as normal, leave the protective layer on it and find a clean area to work!

 

Using the cotton bud dip and apply the gravoxide to the engraved letters

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Allowing it to run into the work. Once finished pad down any residue with a tissue and remove the protective film.

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Next using the mop on your machine and polishing stick buff of the surface of your plate (will have gone black in places during application of the oxidiser)

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Clean of surface with a duster.

 

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This technique is very clean and quick, typically a couple of minutes for a small plaque.

 

Lee

 

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Guest samtheman

there are many different types of brass - material

sorry i should have been more clear.

great tutorial thanks for that i have never seen this before - we use normal cellulose paint to paintfill

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Guest Annie

PRIMA!! BRAVO!! =D>

 

Sucking eggs :smt117....I can relate to that..

Lee thanks, a technique that I will try - apart from that fact that I might get high - looks like one of the more simpliest ways. Remeber I am still learning.

:smt061

missed you too!

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any idea how much this is?

Just phoned Gravograph and currently its £10.79 per 90ml bottle. It lasts for ages!

 

and do you have to use an extracter on you polisher lee?
My polishers the mop on my Whitfield 700! You can use a standard brass polish & a duster, its just quick using the machine.

 

- apart from that fact that I might get high -
Although Gravoxide is harmful and full of warnings its actually very low in smell you won’t get as high as using your infill paints and your customers won’t even know your using it.

 

:smt061

missed you too!

I’m so in Love! :smt054

 

 

Its worth adding this technique is ideal for small plaques but any larger letters will still be better suited to enamel. But as I don’t do many large signs 90% of what I do is in-filled this way.

 

Lee

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This stuff is ok for a quick finish, but isn't a patch on a paint infill. You don't get a shiny lush finish as you do with paint.

Its ok for single line fonts 3/5m.

It's a good alternative to paint on your smaller plaques especially if its a rush order. but it isn't time to throw away your paint infill tools If your fussy on the finish. :wink:

 

Nice one Lee.

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This tutorial was in response mainly to pauls comment

hi i'm hoping that someone might know of a infil paint for outdoor use signs that does not stink like enamel, but will give the same or very close results. as i have found that the fumes bring on my asthma

HOWEVER! UK WROTE! And how could I not rise to the bait!

This stuff is ok for a quick finish

This stuff brilliant for a quick finish not just OK!

but isn't a patch on a paint infill.
Why isn’t it a patch on paint? Outside, which most signs are after a year or two your paint will have faded or flaked away & your plaque will be looking very sorry for itself, whilst this oxidising technique accelerates the natural process that discolours brass making the letters turn black with normal polishing (if the customer can be bothered) a sign blacked in this way will look as good in 10 years time as it does when it leaves the shop.
You don't get a shiny lush finish as you do with paint.

Its ok for single line fonts 3/5m.

You may not get a shiny lush finish, my in-filled brass looks traditional and classic.

It's a good alternative to paint on your smaller plaques especially if its a rush order. but it isn't time to throw away your paint infill tools If your fussy on the finish. :wink:

There is always two ways to do any job, this is a credible alternative and one which may help members like Paul.

 

I would like to mention at this point I have and will use planet uk900 for larger plaques that I can’t cope with his infilling and finish are superb! But this reply is to allow us all to sound out the arguments to decide for ourselves which techniques acceptable!

 

Lee

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Guest samtheman
Lee

I would like to mention at this point I have and will use planet uk900 for larger plaques that I can’t cope with his infilling and finish are superb!

 

i find it strange that your recommending another way of doing the job and using someone elses work for your customers jobs,

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Hey Lee, I wasn't rubbishing your post in any way :wink:

 

and it is an alternative to smelly paint. But no way is it as good as paint infill, No way.

 

When you polish a plaque thats had oxide used on it, you have nice deep cavities to fill with Peek, Brass or whatever your cleaning it with, then it really looks naff.

 

Paint infill on the other hand fills the cavity, and it polish's up perfect every time.

 

carry on

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Lee

I would like to mention at this point I have and will use planet uk900 for larger plaques that I can’t cope with his infilling and finish are superb!

 

i find it strange that your recommending another way of doing the job and using someone elses work for your customers jobs,

 

Lee is just showing an alternative, for those who don't like the mess and smell of paint infill. :wink:

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But no way is it as good as paint infill, No way.
Yes way, YES WAY just as good!

 

i find it strange that your recommending another way of doing the job and using someone elses work for your customers jobs,

 

I do recommend this way! I use it all the time, it looks good and polishes well! (uk)

However I have made no secret in the past that I hate cutting out brass! and unless the plaques on a pre-cut plate available from one of our sponsors I farm the job out, recently my supplier let me down & I have used UK on one occasion and can recommend his service, the fact he in-fills with enamel is a shame ( :wink: ) but he does make a good plaque apart from that!

 

Lee

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What depth do you engrave Cheeky fella, when performing this under par job.. :lol: :lol:
is he talking to me or is he really going mad and talking to him self???????

 

:cry: .8mm :lol: that leaves a healthy .79mm to fill with furniture polish or brasso over the years!

 

Lee

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what's the polishing stick you have in the pic lee?

F**k knows! I brought it when I was doing up my victor way back when! I got it from the local engineering suppliers. Its for a polishing mop, its quite soft you can stick your finger nail in it other than that I don't know what it is!

 

Lee

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0.8mm is a tad deep I feel, try a shallower 0.35mm.

Artistic licence I guess! I have always preferred a .8 depth to shallower one, I like that deep engraved look :D

 

Lee, Have you never tried using Gravograph's range of Door Plates,
No! :oops: may give them a look.

 

Lee

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Thanks lee

i did not know you could use oxide on engravers brass, i use it on trophy alu., and jewlers brass.

I.ll try that on monday looks like it could work for me.

great tutorial as well also . i think that the suppliers will be selling alot more oxide because of your post lee.

thanks chaps

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