Hi,

I keep reading about a kind of filler called Bondo which people in the colonies 
use for filling and finishing model planes.  I've not ever seen this in the UK 
and I wondered if anyone here knows exactly what it is and where I can get a UK 
equivalent ?

Thanks,

Boo

Boo wrote:
> Hi,
> 
> I keep reading about a kind of filler called Bondo which people in the 
> colonies use for filling and finishing model planes.  I've not ever seen 
> this in the UK and I wondered if anyone here knows exactly what it is 
> and where I can get a UK equivalent ?
> 
> Thanks,
> 
> Boo
Lightweight polyfilla is what I use..its hard to come by, but it is very 
soft - softer than balsa. Sometiemns sold as 'no sand' filler.

On 4 Dec, 00:36, The Natural Philosopher <a...@b.c> wrote:
> Boo wrote:
> > Hi,
>
> > I keep reading about a kind of filler called Bondo which people in the
> > colonies use for filling and finishing model planes.  I've not ever seen> > this in the UK and I wondered if anyone here knows exactly what it is
> > and where I can get a UK equivalent ?
>
> > Thanks,
>
> > Boo
>
> Lightweight polyfilla is what I use..its hard to come by, but it is very
> soft - softer than balsa. Sometiemns sold as 'no sand' filler.

HI
Bondo is a nick name for car body filler
the best filler here in the uk is Deluxe model lite £ 6.30 comes in
white or balsa tint
http://www.apollomodels.com/accessories/fillers/cat_84.html
alan m

Hi TNP and Alan, thanks for your replies.

I am really looking for something a bit stronger than Pollyfilla as it will be a 
bit frangible at the edges.  I understood Bondo to be either epoxy or polyester 
resin based,  is the Deluxe model lite made of resin or something else ?

Thanks again,

Boo

Hi -- Might be hard to locate, but there is a product made by Poly Fiber 
called "SuperFil". It is intended for the homebuilt aircraft crowd, but 
works great for our models. It is a two-part epoxy compound that is very 
light weight and SANDS WONDERFULLY -- to a feather edge on 'glass, metal, or 
even balsa. Weighs 3.6 pounds/gallon. Here in the Colonies it's available 
from http://www.aircraftspruce.com/catalog/cmpages/superfil.php but if you 
can locate an outfit that supplies aircraft finishing supplies, I'm sure 
they can get it for you.

Cheers -- Lyman

"On so-called global warming or climate change, let us not scare ourselves 
with catastrophic forecasts, or use them to defend and promote irrational 
interventions in human lives."


"Boo"  wrote in message 
news:fjces0$ql$1$8302bc10@news.demon.co.uk...
> Hi TNP and Alan, thanks for your replies.
>
> I am really looking for something a bit stronger than Pollyfilla as it 
> will be a bit frangible at the edges.  I understood Bondo to be either 
> epoxy or polyester resin based,  is the Deluxe model lite made of resin or 
> something else ?
>
> Thanks again,
>
> Boo

> Hi -- Might be hard to locate, but there is a product made by Poly Fiber 
> called "SuperFil". It is intended for the homebuilt aircraft crowd, but 
> works great for our models. It is a two-part epoxy compound that is very 
> light weight and SANDS WONDERFULLY -- to a feather edge on 'glass, metal, or 
> even balsa. Weighs 3.6 pounds/gallon. Here in the Colonies it's available 
> from http://www.aircraftspruce.com/catalog/cmpages/superfil.php but if you 
> can locate an outfit that supplies aircraft finishing supplies, I'm sure 
> they can get it for you.

Thanks for the post Lyman,  I have found DuperFil in the UK at 
rocketstore.co.uk.  It's not cheap but the easy sanding sounds very useful as 
that's always a pita with any of the harder fillers IME.

Can you say whether it is any good to use on Polyester resin based fibreglass as 
well as epoxy based fiberglassw ?  I read that only polyester resin will bond 
properly to cured polyester laminates and I have both a polyester and an epoxy 
based fuselage to fill.

-- 
Boo

I'm afraid I can't answer that question -- why not send the company an 
E-mail? Then post the answer you get.
Merry Christmas -- Lyman

"Boo" > Can you say whether it is any good to use on Polyester resin based 
fibreglass as
> well as epoxy based fiberglassw ?  I read that only polyester resin will 
> bond properly to cured polyester laminates and I have both a polyester and 
> an epoxy based fuselage to fill.

> I'm afraid I can't answer that question -- why not send the company an 
> E-mail? Then post the answer you get.

Hi Lyman,

I took your advice and got a speedy reply from polyfiber.com. The question and 
their reply is appended below :

-- 
Boo

 > Hi,
 >
 > I see from your website that you are the manufacturers of Superfil
 > epoxy filler and I would be grateful if you can answer a question I
 > have :
 >
 > I read that only polyester resins will bond properly to cured
 > Polyester laminates and I have both polyester and epoxy based model
 > aeroplane fuselages to fill. Can you say whether Superfil will
 > adhere strongly to Polyester resin based fibreglass laminatesa as
 > well as to epoxy based fiberglass ?  Is any special prep required
 > in this instance ?
 >>
 >> Yes, it will bond.  You will want to scuff with a maroon Scotch
 >> Brite Pad or 400 grit sandpaper first.  Also, you will need to
 >> fill with Epoxy Primer when you are all done.  This is true even
 >> if you are going to use UV Smooth Prime for pinhole filling.
 >> Remember all porous coatings need to be sealed with epoxy primer
 >> before over-coating.