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Thread: Black Putty
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8th August 2008, 07:27 PM #1
Black Putty
Occasionally... just occasionally… I use some putty.
In the past I’ve used Wattyl putty on pine and been happy with the product. On hardwoods I’ve always used some sanding dust and PVA. I don’t really like that method, it’s a little messy and doesn’t give a smooth finish, but it does the job.
The next job is RedGum. Do love redgum. I bought some intergrain redgum wood filler. Looks alright. Sorry… off the track... black putty.
I want to fill redgum cracks that are black and knots which are black with black. What’s the best way to do this? I can’t seem to buy it. I don’t have any really black woods to turn to dust.
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8th August 2008, 07:32 PM #2
We have mixed a little Black Japan into putty successfully, and I've also used black oxide powder with Techniglue epoxy to fill cracks and knot holes with black. This works very well and sets a lot harder than putty (can be sanded, etc).
Bob C.
Never give up.
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8th August 2008, 07:40 PM #3
Cabots market water based putties in different colourings for timber filling .
There is a neutral colour that matches radiata pine very well .
In the past I have mixed artists powdered pigments to colour it for different timber that I have had to putty up nail holes and the like.
I've never mixed the black , but I don't see why it wont work as its worked for other colours .
The best thing about this way is ,with a little trial and error you can match the putty and the timber colour as close to perfect as it gets .
Kev."Outside of a dog a book is man's best friend ,inside a dog it's too dark to read"
Groucho Marx
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8th August 2008, 07:48 PM #4
I've never tried my hands at epoxy. Might be the way to go. I know people speak of the technique highly.
What is "black oxide" and can I buy it the hardware store? Sounds more like a welding biproduct.
I thought japan black, I was worried it would leak out into the wood.
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8th August 2008, 08:26 PM #5
black oxide is also used to colour cement, it's a common enough substance to be found in most hardware and garden suppliers. Black acrylic paint can also be used so can black pigment to colour resin.
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8th August 2008, 08:36 PM #6
Graphite powder can be mixed with epoxy resin to give the effect you are looking for.
Rhys
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8th August 2008, 08:59 PM #7
Timbermate do a black water based filler, should be available at bunnies/mitre10 (well they are here in NZ so i guess they should be over in Aus)
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8th August 2008, 09:35 PM #8
Or using any water based filler you can tint with Ubeauts water dye... you can tint casting/epoxy resin with it too!
You dont actually need black a dark green or blue will look black on redgum.....................................................................
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8th August 2008, 10:09 PM #9Intermediate Member
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A small amount of black paint tinter mixed into either bog or epoxy will give a much darker black than the oxide powder.
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10th August 2008, 09:03 PM #10Member
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If you are using linseed oil putty you can mix black putty using black oil paint that you buy in tubes for painting in oils.
If it gets too sticky or wet you can stiffen it up by working in some calcium carbonate or talcum powder.
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11th August 2008, 07:39 AM #11Member
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Black Putty
Timbermate do an Ebony putty that is ..... Ebony (black)
It is made and available in Australia. You do not have to go to New Zealand to get itRay
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13th August 2008, 09:04 PM #12Member
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You can buy linseed oil putty almost anywhere in the world. It is probably the oldest filler used in the world. I know that you can buy it in aussie. I never said that you have to buy it from New Zealand.
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16th August 2008, 07:50 AM #13
Any supplier of stained glass sells black putty ... that's what they use to putty their glass into the lead 'cames'. Some of the smart ones mix it with petrol ... yes petrol! ... to make a slushy mixture that they brush onto the panel, brushing the mixture into the gaps between the glass and the lead, then the petrol evaporates and leaves nice solid putty.
I have used it this way in a former life pre-woodwork.
Cheers,
Alan4 out of 3 people have trouble with fractions.
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20th August 2008, 09:05 PM #14
Thanks for the all the ideas.
I thought the epoxy solution had the best to offer. Today I bought some slow set araldite.
For colour... the only thing in bunnies I could see to colour was the feast watson black prooftint. Someone suggested and I had some black shoe polish in the shed already. I mixed in some, more then I thought I would need, and the colour was slightly grey.
I tried it on a piece of scrap and is now sitting in the shed drying... tomorrow I'll fix it up... and put some finishing oil on it and see if everything is good good good.
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20th August 2008, 09:10 PM #15
Yep the prooftint should work, its waterbased(I thinks).
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