Hi folks
Managed to restore my fibreglass observatory to one piece again after
much needed help and advice from the group.
Now I wonder what primer and paints would be suitable to use to finish
it off and wondered if anyone could advise me please?.
It seems that 120 grade paper rubs the slight scratches out ok so need
to maybe make a bit smoother before painting. As its outside it
obviously needs to be waterproof, flexible and adhere to fibreglass.
Should I use any special primer and paints for this?. I don`t need the
high gloss finish like for cars just a nice smooth surface would be
fine. Brushed or spray?.
Any advice very welcome.
Cheers
Steve

Steve wrote:
Hi folks
Managed to restore my fibreglass observatory to one piece again after
much needed help and advice from the group.
Now I wonder what primer and paints would be suitable to use to finish
it off and wondered if anyone could advise me please?.
It seems that 120 grade paper rubs the slight scratches out ok so need
to maybe make a bit smoother before painting. As its outside it
obviously needs to be waterproof, flexible and adhere to fibreglass.
Should I use any special primer and paints for this?. I don`t need the
high gloss finish like for cars just a nice smooth surface would be
fine. Brushed or spray?.
Any advice very welcome.
Cheers
Steve


Standard oil based undercoat/gloss takes well on fibreglass. Better than
on wood usually.

On Tue, 01 Aug 2006 07:33:24 GMT, Stuart Noble
wrote:

Steve wrote:
Hi folks
Managed to restore my fibreglass observatory to one piece again after
much needed help and advice from the group.
Now I wonder what primer and paints would be suitable to use to finish
it off and wondered if anyone could advise me please?.
It seems that 120 grade paper rubs the slight scratches out ok so need
to maybe make a bit smoother before painting. As its outside it
obviously needs to be waterproof, flexible and adhere to fibreglass.
Should I use any special primer and paints for this?. I don`t need the
high gloss finish like for cars just a nice smooth surface would be
fine. Brushed or spray?.
Any advice very welcome.
Cheers
Steve


Standard oil based undercoat/gloss takes well on fibreglass. Better than
on wood usually.

I *think* go along with that ..

Yeas ago my Dad wanted to paint the inside of a fiberglass boat to
tidy it up and bought the special cleaner / primer / top coat and did
it all by the book in the right conditions etc. Several months later
it all fell off in big lumps ;-(

I was rebuilding my 14' 'composite' dinghy (ply deck and wood gunwales
/ transom / seats on a fiberglass hull) and must have spilt a few
drips of polyurethane varnish inside the dusty hull. When I found them
later I went to remove them and they were stuck like a s to a b! ;-)

Based on that observation I thoroughly cleaned the inside of the boat
out and painted it with some *slightly* thinned white polyurethane
yacht paint (International) followed by an un thinned top cot. It was
as hard as nails and is still on there 20 years later ;-)

All the best ..

T i m

T i m wrote:
On Tue, 01 Aug 2006 07:33:24 GMT, Stuart Noble
wrote:

Steve wrote:
Hi folks
Managed to restore my fibreglass observatory to one piece again after
much needed help and advice from the group.
Now I wonder what primer and paints would be suitable to use to finish
it off and wondered if anyone could advise me please?.
It seems that 120 grade paper rubs the slight scratches out ok so need
to maybe make a bit smoother before painting. As its outside it
obviously needs to be waterproof, flexible and adhere to fibreglass.
Should I use any special primer and paints for this?. I don`t need the
high gloss finish like for cars just a nice smooth surface would be
fine. Brushed or spray?.
Any advice very welcome.
Cheers
Steve

Standard oil based undercoat/gloss takes well on fibreglass. Better than
on wood usually.

I *think* go along with that ..

Yeas ago my Dad wanted to paint the inside of a fiberglass boat to
tidy it up and bought the special cleaner / primer / top coat and did
it all by the book in the right conditions etc. Several months later
it all fell off in big lumps ;-(

I was rebuilding my 14' 'composite' dinghy (ply deck and wood gunwales
/ transom / seats on a fiberglass hull) and must have spilt a few
drips of polyurethane varnish inside the dusty hull. When I found them
later I went to remove them and they were stuck like a s to a b! ;-)

Based on that observation I thoroughly cleaned the inside of the boat
out and painted it with some *slightly* thinned white polyurethane
yacht paint (International) followed by an un thinned top cot. It was
as hard as nails and is still on there 20 years later ;-)

All the best ..

T i m



Look at how well gloss paint takes to glass. Runs (not on my paintwork
of course) are often still rock solid when it has long since flaked off
the surrounding woodwork.

Standard oil based undercoat/gloss takes well on fibreglass. Better
than
on wood usually.


Would this be flexible enough for a fibreglass dome do you think?.
Steve

Steve wrote:
Standard oil based undercoat/gloss takes well on fibreglass. Better
than
on wood usually.


Would this be flexible enough for a fibreglass dome do you think?.
Steve


Dunno. I guess it depends on the type of resin. Some are more flexible
than others. I don't imagine any of them will move more than wood

Thanks for that Stuart. Didn`t think of normal undercoat/gloss oil
based paints.
Lads at work been scaring me off with tales of special car paints,
specialist breathing gear, full body protective overalls etc etc. a bit
over the top I think.
Cheers
Steve

Steve wrote:
Thanks for that Stuart. Didn`t think of normal undercoat/gloss oil
based paints.
Lads at work been scaring me off with tales of special car paints,
specialist breathing gear, full body protective overalls etc etc. a bit
over the top I think.
Cheers
Steve


Depends whether what you're painting needs to have an auto quality
finish. Oil paint looks like oil paint, whatever you apply it to, but
I'm sure it will take alright if the surface is tack free. Don't know
too much about fibreglass but ISTR you are left with a slightly sticky
surface when it cures

On 1 Aug 2006 08:25:38 -0700, "Steve"
wrote:


Standard oil based undercoat/gloss takes well on fibreglass. Better
than
on wood usually.


Would this be flexible enough for a fibreglass dome do you think?.

I think I did mention my boat was fiberglass and likely to sustain
more flexing (and abrasion) in use than most roof domes?

All the best ..

T i m

Cheers for that Tim.
That white polyurethane yacht paint you mentioned is that a special
paint or just oil based like the other paints mentioned?.
Steve