I have an alluminium box which I wish to paint with Black hammerite paint.

What is the best way to do this, rough it up with emery or glass paper first
to take the shine of it or paint directly onto it.

Jim

On Feb 14, 7:19*pm, "the_constructor"
wrote:
I have an alluminium box which I wish to paint with Black hammerite paint..

What is the best way to do this, rough it up with emery or glass paper first
to take the shine of it or paint directly onto it.

Jim

You need an "etch primer" first or the paint will flake off. Or
leave it outside in the rain for a few months , the rain will etch it.

On Feb 14, 7:19*pm, "the_constructor"
wrote:

What is the best way to do this, rough it up with emery or glass paper first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

On Feb 14, 7:36*pm, Andy Dingley wrote:
On Feb 14, 7:19*pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

Hammerite makes their own etch primer. They also make "Garage door
paint" that may do the job come to think.

"harry" wrote in message
...
On Feb 14, 7:36 pm, Andy Dingley wrote:
On Feb 14, 7:19 pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper
first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

Hammerite makes their own etch primer. They also make "Garage door
paint" that may do the job come to think.

Is their any other paints that I can use please

JIm

Is their any other paints that I can use please

JIm


Does it need to be very durable? How much does it get exposed to the
weather? A quick and easy option might be a car spray paint.

On 14/02/2011 20:01, the_constructor wrote:
wrote in message
...
On Feb 14, 7:36 pm, Andy wrote:
On Feb 14, 7:19 pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper
first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

Hammerite makes their own etch primer. They also make "Garage door
paint" that may do the job come to think.

Is their any other paints that I can use please

It's the base coat that matters. About 20 years ago the first coat was
alocrom and the second etch primer, followed by epoxy primer but this
then changed to anodised and then epoxy primer.

Dings and dents on an aircraft skin never broke the paint skin, unless
it got scratched.

If you are using the paint finish as I expect you are, follow the
instructions of the poster who said to abrade and paint immediately.

Dave

"Dave" wrote in message
...
On 14/02/2011 20:01, the_constructor wrote:
wrote in message
...
On Feb 14, 7:36 pm, Andy wrote:
On Feb 14, 7:19 pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper
first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.


If you are using the paint finish as I expect you are, follow the
instructions of the poster who said to abrade and paint immediately.


I will concur with that, whatever the paint. Aluminium oxidises very quickly
and the aluminium oxide just does not allow the paint to stick. A power wire
brush is very effective.

Mike

"Dave" wrote in message
...
On 14/02/2011 20:01, the_constructor wrote:
wrote in message
...
On Feb 14, 7:36 pm, Andy wrote:
On Feb 14, 7:19 pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper
first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

Hammerite makes their own etch primer. They also make "Garage door
paint" that may do the job come to think.

Is their any other paints that I can use please

It's the base coat that matters. About 20 years ago the first coat was
alocrom and the second etch primer, followed by epoxy primer but this then
changed to anodised and then epoxy primer.

Dings and dents on an aircraft skin never broke the paint skin, unless it
got scratched.

If you are using the paint finish as I expect you are, follow the
instructions of the poster who said to abrade and paint immediately.

Dave


All it is is an aluminium box measuring 7.5" x 4.5" x 2" housing a 12V 2Ah
battery with a switch, socket and LED on the lift off panel so that I can
plug my tyre inflator into it when I need to inflate the tyres on my
mobility scooter.
I just thought that painting it it would be better than the alluminium look
and make it more personal. I might at a later date if one comes my way, put
a small volt meter on it as well. It could have many uses than the one
mentioned.
Jim

On 14/02/2011 22:52, the_constructor wrote:
wrote in message
...
On 14/02/2011 20:01, the_constructor wrote:
wrote in message
...
On Feb 14, 7:36 pm, Andy wrote:
On Feb 14, 7:19 pm, "the_constructor"

wrote:
What is the best way to do this, rough it up with emery or glass paper
first
to take the shine of it or paint directly onto it.

Just scratch all over with wire wool, then paint it immediately
(within a couple of minutes). Hammerite is fussy about good drying
conditions (warm and dust free). It's always far better sprayed than
painted, if you can arrange this.

I wouldn't use an etch primer, because you don't desperately need it
for aluminium (unlike brass) and, unless it's Hammerite-specific,
there's a risk of reactions with the solvents in Hammerite.

Hammerite is always brittle and with poor adhesion though, so it won't
last terribly well on soft aluminium that picks up dents.

Hammerite makes their own etch primer. They also make "Garage door
paint" that may do the job come to think.

Is their any other paints that I can use please

It's the base coat that matters. About 20 years ago the first coat was
alocrom and the second etch primer, followed by epoxy primer but this then
changed to anodised and then epoxy primer.

Dings and dents on an aircraft skin never broke the paint skin, unless it
got scratched.

If you are using the paint finish as I expect you are, follow the
instructions of the poster who said to abrade and paint immediately.

Dave


All it is is an aluminium box measuring 7.5" x 4.5" x 2" housing a 12V 2Ah
battery with a switch, socket and LED on the lift off panel so that I can
plug my tyre inflator into it when I need to inflate the tyres on my
mobility scooter.
I just thought that painting it it would be better than the alluminium look
and make it more personal. I might at a later date if one comes my way, put
a small volt meter on it as well. It could have many uses than the one
mentioned.

OK on that. I thought you might be using it for the 'hobby' and it had
to go outside into the weather.

Dave

the_constructor wrote:
I have an alluminium box which I wish to paint with Black hammerite paint.

What is the best way to do this, rough it up with emery or glass paper first
to take the shine of it or paint directly onto it.

Jim


acid etch primer spray if you can find one.

On 15/02/2011 02:10, The Natural Philosopher wrote:
the_constructor wrote:
I have an alluminium box which I wish to paint with Black hammerite
paint.

What is the best way to do this, rough it up with emery or glass paper
first to take the shine of it or paint directly onto it.

Jim

acid etch primer spray if you can find one.

Putting 'acid etch primer for aluminium' into google revels Halfords
sell it in spray cans.

Dave