It's back in black (well almost)

David Martin [email hidden] opined the following...

Quoted message said:

I got my frame back today. After fifteen years of careful abuse it needed a
respray. The local powder coaters have done the dirty work and talked me
into spending an extra fiver to get holographic black.

This is gloss black with holographic sparkles. It looks like metallic
graphite when the light is directly behind, but when the light is at an
angle, it sparkles in red and green.

I have been slowly building it up this evening. The gears and brakes are on,
the headset is on (affixed with careful application of mallet) and it is
looking really nice..

I now want to change all the shiny metal bits to black or carbon but my bank
manager wont let me.

Pics later when it is all together.

If it's not too personal, where and how much altogether. The bent is up
for a frame rebuild over the next month and I may have it painted
professionally. (Assuming my welding gets a bit neater!)

Jon

David Martin said:

I got my frame back today. After fifteen years of careful abuse it

needed a

Quoted message said:

respray. The local powder coaters have done the dirty work and talked

me

Quoted message said:

into spending an extra fiver to get holographic black.

This is gloss black with holographic sparkles. It looks like metallic
graphite when the light is directly behind, but when the light is at

an

Quoted message said:

angle, it sparkles in red and green.

I have been slowly building it up this evening. The gears and brakes

are on,

Quoted message said:

the headset is on (affixed with careful application of mallet) and it

is

Quoted message said:

looking really nice..

I now want to change all the shiny metal bits to black or carbon but

my bank

Quoted message said:

manager wont let me.

Pics later when it is all together.

..d

How does powder coating differ to regular frame refinishing ? I don't
mean the actual process I mean how does the finish differ ?

On 17/10/04 8:55 am, in article
[email hidden], "MSeries"

Quoted message said:

David Martin said:

I got my frame back today. After fifteen years of careful abuse it

needed a

Quoted message said:

respray. The local powder coaters have done the dirty work and talked

me

Quoted message said:

into spending an extra fiver to get holographic black.

This is gloss black with holographic sparkles. It looks like metallic
graphite when the light is directly behind, but when the light is at

an

Quoted message said:

angle, it sparkles in red and green.

I have been slowly building it up this evening. The gears and brakes

are on,

Quoted message said:

the headset is on (affixed with careful application of mallet) and it

is

Quoted message said:

looking really nice..

I now want to change all the shiny metal bits to black or carbon but

my bank

Quoted message said:

manager wont let me.

Pics later when it is all together.

..d

How does powder coating differ to regular frame refinishing ? I don't
mean the actual process I mean how does the finish differ ?

I think it is a single coat (well, colour and laquer as two coats).
Typical stove enamelling is a wet paint that is then cured and can be
applied over a base of primer. Powder probably can as well.

Not much difference between the two. The finish is generally smooth though
there are some bits that aren't quite as smooth as one would like. Then
again, you get what you pay for.

And in answer to Jon, a basic shotblast and coat would be 35 quid. The
holographic black was 40 GBP (Though he had originally quoted 45).

Done by Coatech in Carnoustie though there will be a finishers closer to
you.

...d

MSeries popped their head over the parapet saw what was going on and
said

Quoted message said:

David Martin said:

I got my frame back today. After fifteen years of careful abuse it
needed a respray. The local powder coaters have done the dirty work
and talked me into spending an extra fiver to get holographic black.

This is gloss black with holographic sparkles. It looks like
metallic graphite when the light is directly behind, but when the
light is at an angle, it sparkles in red and green.

I have been slowly building it up this evening. The gears and
brakes are on, the headset is on (affixed with careful application
of mallet) and it is looking really nice..

I now want to change all the shiny metal bits to black or carbon
but my bank manager wont let me.

Pics later when it is all together.

..d

How does powder coating differ to regular frame refinishing ? I don't
mean the actual process I mean how does the finish differ ?

Regular frame refinishing involves "enamel" paint while powder
coating involves a powder that becomes liquid at elevated
temperatures,basically powder coating is more durable than
paint but the finish is (can be) not quite so good.
"You pays your money ..."

--
yours S

Nihil curo de ista tua stulta superstitione

David Martin said:

And in answer to Jon, a basic shotblast and coat would be 35 quid. The
holographic black was 40 GBP (Though he had originally quoted 45).

Quoted message said:

Done by Coatech in Carnoustie though there will be a finishers closer to
you.

I feel a recoating of my Giant frame coming up... Only problem I see is
that I currently use it daily for commuting, though I suppose I can do
that on the Fiero now that I have a key to the bike shed 🙂

Roos

On 17/10/04 10:11 am, in article
[email hidden], "soup"

Quoted message said:

MSeries popped their head over the parapet saw what was going on and
said

Quoted message said:

David Martin said:

I got my frame back today. After fifteen years of careful abuse it
needed a respray. The local powder coaters have done the dirty work
and talked me into spending an extra fiver to get holographic black.

This is gloss black with holographic sparkles. It looks like
metallic graphite when the light is directly behind, but when the
light is at an angle, it sparkles in red and green.

I have been slowly building it up this evening. The gears and
brakes are on, the headset is on (affixed with careful application
of mallet) and it is looking really nice..

I now want to change all the shiny metal bits to black or carbon
but my bank manager wont let me.

Pics later when it is all together.

..d

How does powder coating differ to regular frame refinishing ? I don't
mean the actual process I mean how does the finish differ ?

Regular frame refinishing involves "enamel" paint while powder
coating involves a powder that becomes liquid at elevated
temperatures,basically powder coating is more durable than
paint but the finish is (can be) not quite so good.
"You pays your money ..."

Not strictly true. There are basically four types of paint:

Normal domestic paint. This is a suspension in a solvent. As the solvent
evaporates the paint cures. The chemical reactions involved don't lead to a
particularly hard paint so this is not really suitable for applications like
bike frames (I'd reckon that Jon can easily leave marks in his recumbent's
paint job with a fingernail).

2. Epoxy paints. Expensive but good. Mix two parts and a chemical reaction
occurs. Much like araldite. This is then painted onto the surface before it
sets. This technology is used on the Forth rail bridge.

The other two are variants.

3. stove enamelling. A paint is applied, much like in 1. but the reactions
can be augmented by heat curing to give a hard finish.

4. Powder coating. A powder is applied to a surface, sometimes using
electrostatic bonding. This can be melted in a stove and gives a smooth,
hard finish.

The main difference between 3 and 4 is the method of applying the paint; the
heat curing is essentially the same.

As far as finish goes, with any paint you have to rub down with a very fine
grit to get the bumps out. This is hard work with hard finishes and not
always neccesary unless you want a mirror like finish.

The quality of a paint job depends primarily on the surface preparation. It
is also dependent for longevity on the integrity of the coat.

So far with the bike, the powder coating seems very tough. I'll still buy a
chainstay protector though to minimise the damage there.

...d

David Martin [email hidden] opined the following...

Quoted message said:

(I'd reckon that Jon can easily leave marks in his recumbent's
paint job with a fingernail).

Even after several coats it scratches very easily. Hence my interest in
powder coating version 2.

Jon