Anyway, one walletectomy later and the jobs a good-un. However, an
inadvertent snort of the thinners suggests they have a fair bit in
common with ordinary cellulose thinners, and a quick look at the safety
data sheets for some of them suggests they certainly share a number of
common ingredients.
Has anyone ignored the dire hammerite warnings, and successfully used
other thinners?
--
Cheers,
John.
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Used synthetic car paint thinners successfully.
Around �13 a gallon !
> I thought I would spray some old rusty metal cabinets with a coat of
> hammerite, and so popped out to get a can of thinners. When I saw the
> price (about �6.50 for a 250ml tin) I would have fallen off my chair
> had I have been sat down!
>
> Anyway, one walletectomy later and the jobs a good-un. However, an
> inadvertent snort of the thinners suggests they have a fair bit in
> common with ordinary cellulose thinners, and a quick look at the
> safety data sheets for some of them suggests they certainly share a
> number of common ingredients.
>
> Has anyone ignored the dire hammerite warnings, and successfully used
> other thinners?
>
I've never sprayed Hammerite, but I *always* clean my brushes with ordinary
cellulose thinners after using it - and it's perfectly ok.
--
Cheers,
Roger
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It's always interested me too why Hammerite says you need their special
super expensive thinners and in fact is one reason I stopped using the
stuff. Anyway digging through Google the MSDS says the ingredients in
decreasing order of abundance by weight are Acetone, Naphtha and Butyl
Acetate. Acetone is the main ingredient in nail varnish remover as well as
in lacquer paint thinners.
Further digging and this general purpose lacquer thinner
1 gallon for $18.99 although having to go to New England for it might be a
hindrance but it shows you much Hammerite are ripping us off over here.
However.
http://www.decoratingdirect.co.uk/viewprod/t/TORTH19/
1 litre of hammered paint thinner for �6. Doesn't say what's in it though
but I suspect one can guess.
I reckon it would also be well worth giving cheap nail polish remover a go.
http://www.blushingbuyer.co.uk/product/264/vannailrvm/vantage-nail-polish-remover.html
400ml for 99p. �2.50 a litre.
--
Dave Baker
1/. if you believe it, its more profitable.
2/. it may be that the hammerite that has the hammer finish only works
well with that particular witches brew.
>Anyway digging through Google the MSDS says the ingredients in
> decreasing order of abundance by weight are Acetone, Naphtha and Butyl
> Acetate. Acetone is the main ingredient in nail varnish remover as well as
> in lacquer paint thinners.
>
> Further digging and this general purpose lacquer thinner
>
> http://paint-and-supplies.hardwarestore.com/50-280-paint-thinners/painter%27%27s-lacquer-thinner-267203.aspx
>
> 1 gallon for $18.99 although having to go to New England for it might be a
> hindrance but it shows you much Hammerite are ripping us off over here.
>
> However.
>
> http://www.decoratingdirect.co.uk/viewprod/t/TORTH19/
>
> 1 litre of hammered paint thinner for �6. Doesn't say what's in it though
> but I suspect one can guess.
>
> I reckon it would also be well worth giving cheap nail polish remover a go.
>
> http://www.blushingbuyer.co.uk/product/264/vannailrvm/vantage-nail-polish-remover.html
>
> 400ml for 99p. �2.50 a litre.
That's a good price.
>It's always interested me too why Hammerite says you need their special
>super expensive thinners and in fact is one reason I stopped using the
>stuff.
It is a leftover from the days of real Hammerite when it used
1,1,1-trichloroethane as the solvent. If you added any of the usual
thinners such as acetone/cellulose thinners or white spirit it simply
formed a sticky paste of globs of paint.
When they changed to Acetone (after the Montreal protocol banned real
solvents) the warning remained presumable because the sale of the
thinners brought in money.
>http://www.decoratingdirect.co.uk/viewprod/t/TORTH19/
>
>1 litre of hammered paint thinner for �6. Doesn't say what's in it though
>but I suspect one can guess.
Or glassfibre suppliers
http://www.glasplies.co.uk/acatalog/Solvents.html
Acetone
5L for �8
25L for �28
you need to add �7 carriage.
>I reckon it would also be well worth giving cheap nail polish remover a go.
That usually contains dissolved oils or fats so would not be a good
idea.
Puzzled. You say acetone/cellulose thinners doesn't work and then they
changed to acetone. Clarification?
--
Dave Baker
I assumed he meant that when the composition of the paint itself was changed
to have an acetone base, you could then use acetone thinners with it.
> It's always interested me too why Hammerite says you need their special
> super expensive thinners and in fact is one reason I stopped using the
> stuff. Anyway digging through Google the MSDS says the ingredients in
> decreasing order of abundance by weight are Acetone, Naphtha and Butyl
> Acetate.
Curious, the time of genuine Hammerite Thinners/Brush Cleaner I have
says it's xylene, which is a set of bezene carbon ring related
substances, nothing like acetone. This is a fairly old tin, somewhere
between 5 and 10 years.
However wandering over to the Hammerite site and getting the list of
ingredients of the Brush Cleaner & Thinners it is now, as you say
Acetone, Naptha and Butyl Acetate. Presumably the H&S lot have forced
the change as xylene is not particularyly nice stuff:
http://www.osha.gov/SLTC/healthguidelines/xylene/recognition.html
Mind you I don't know how acetone compares, it's not directly listed
here:
http://www.osha.gov/SLTC/healthguidelines/index.html
What do the merkins call acetone?
--
Cheers
Dave.
>On Thu, 24 Sep 2009 09:03:59 +0100, Dave Baker wrote:
>
>> It's always interested me too why Hammerite says you need their special
>> super expensive thinners and in fact is one reason I stopped using the
>> stuff. Anyway digging through Google the MSDS says the ingredients in
>> decreasing order of abundance by weight are Acetone, Naphtha and Butyl
>> Acetate.
>
>Curious, the time of genuine Hammerite Thinners/Brush Cleaner I have
>says it's xylene, which is a set of bezene carbon ring related
>substances, nothing like acetone. This is a fairly old tin, somewhere
>between 5 and 10 years.
>
>However wandering over to the Hammerite site and getting the list of
>ingredients of the Brush Cleaner & Thinners it is now, as you say
>Acetone, Naptha and Butyl Acetate. Presumably the H&S lot have forced
>the change as xylene is not particularyly nice stuff:
>
>http://www.osha.gov/SLTC/healthguidelines/xylene/recognition.html
>
I've used gallons of it cleaning 1" Ampex helical scan VTR head drums.
>Mind you I don't know how acetone compares, it's not directly listed
>here:
>
>http://www.osha.gov/SLTC/healthguidelines/index.html
>
>What do the merkins call acetone?
AFAIK it's not properly called acetone here nowadays,
Dimethylketone; or 2-propanone; or dimethylketal
Derek
>Puzzled. You say acetone/cellulose thinners doesn't work and then they
>changed to acetone. Clarification?
Sorry, I wasn't clear. The paint formulation was changed. In the
past it used trichloroethane, a chlorinated hydrocarbon as the
solvent. Xylene, an aromatic hydrocarbon was sold as their brush
cleaner and thinner. The former was banned as a paint solvent by the
Montreal Protocol of 1989 on ozone depleting chemicals so the paint
was reformulated to use an acetone solvent base with acetone also sold
as the brush cleaner/thinners.
> However.
>
> http://www.decoratingdirect.co.uk/viewprod/t/TORTH19/
>
> 1 litre of hammered paint thinner for �6. Doesn't say what's in it though
> but I suspect one can guess.
I also noticed that Lawson do the official product at quite a discount
compared to the likes of B&Q...
> I reckon it would also be well worth giving cheap nail polish remover a go.
>
> http://www.blushingbuyer.co.uk/product/264/vannailrvm/vantage-nail-polish-remover.html
>
> 400ml for 99p. �2.50 a litre.
I will have a go with some "ordinary" cellulose (seems to have a
reasonable acetone content) and see how that goes.
> Sorry, I wasn't clear. The paint formulation was changed. In the
> past it used trichloroethane, a chlorinated hydrocarbon as the
> solvent. Xylene, an aromatic hydrocarbon was sold as their brush
> cleaner and thinner. The former was banned as a paint solvent by the
> Montreal Protocol of 1989 on ozone depleting chemicals so the paint
> was reformulated to use an acetone solvent base with acetone also sold
> as the brush cleaner/thinners.
Must have taken quite a while for the paint formulation to change.
The tin of paint I have here with the xylene thinners bought at the
same time is no more than 10 years old...
--
Cheers
Dave.