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PU foam plug and body filler
PU foam plug and body filler
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TURK
TURK
posted 8 Years Ago
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Posts: 101,
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Hi all,
I'm in need of a little help guys ........ I watched
( and learned a great deal )
from Paul's 'Airbox' video on YouTube, I purchased and currently using the Low Density 48Kgs/m3 PU foam blocks, to get my 'form'. I then put a skim of body filler to harden the 'form' that will eventually be my plug for casting a resin mould. After the initial body filler 'skim' had hardened, I applied a few more layers of body filler to build-up the form to the dimensions I wanted. So basically, my plug now has about 3mm of body filler on it that needs to be sanded down smooth.
Unfortunately, that isn't what happened ........... the body filler ( known as 'Bonda' ) turned out to be more like a rubbery texture !!!
as we all probably know, it's impossible to sand down bubble gum !
Any of you know why it did this ? .......... did I overdo the 'skimming' of body filler ?
The plugs have now been drying for four days, but the texture of the body filler is still quite soft, to the point where I can push my finger nail into it.
This was the original 'skim' of body filler >>
Then I applied a little more on to build it up as it were, so I could sand down the contours >>
So, another question if I may ......... As I've never had any troubles with this sort of body filler, I use it all the time ( mostly on MDF plugs ) and never had any issues with it. D'you think there's been kind of a reaction with the PU foam ? should I have applied a few layers of Pattern-Coat Primer to the initial 'skim' of body filler ? or can I simply apply Pattern-Coat Primer directly onto the PU foam ?
( sorry, that's three questions ! )
There's loads more info in the following link, and the entire procedure here >
PU foam plugs
Many thanks for your time.
TURK
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Edited
8 Years Ago by
TURK
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TURK
TURK
posted 8 Years Ago
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Group: Forum Members
Posts: 101,
Visits: 662
Hanaldo (14/12/2016)
Looking great mate!
Thanks Hanaldo !
I'm currently at the sanding stage, doesn't look like I'll have to do much filling in.
Out of all the different methods and materials I've used in the past, this is by far the easiest ........ finding this very therapeutic actually !
TURK
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PU foam plug and body filler
TURK
-
8 Years Ago
Could the activator have gone off or be old? I've seen this with filler before but only when it's...
FLD
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8 Years Ago
I would agree that something has gone wrong. Even the bumper fillers can usually still be sanded....
Warren (Staff)
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8 Years Ago
Thanks guys, efficient and rapid response time as usual :) I used that particular filler and...
TURK
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8 Years Ago
[quote][b]TURK (07/12/2016)[/b][hr]What's the 'bumper filler' you speak of Warren ? [/quote] You...
Warren (Staff)
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8 Years Ago
I'd wager you simply didn't put enough hardener in. Happens to me from time to time, despite having...
Hanaldo
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8 Years Ago
[quote][b]Hanaldo (07/12/2016)[/b][hr]I'd wager you simply didn't put enough hardener in. Happens to...
TURK
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8 Years Ago
Turk, there's no reason you can't coat with pattern coat straight away, however it isn't really any...
Hanaldo
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8 Years Ago
Ideally your plug foam core should be about 1 -1,5 mm smaller in all dimensions, and then the...
Dravis
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8 Years Ago
Thanks chaps, makes a great deal of sense that :D I tried to fix my previous plugs, but I...
TURK
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8 Years Ago
Looking great mate!
Hanaldo
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8 Years Ago
[quote][b]Hanaldo (14/12/2016)[/b][hr]Looking great mate![/quote] Thanks Hanaldo ! ;)...
TURK
-
8 Years Ago
looking much nicer now!
Warren (Staff)
-
8 Years Ago
[quote][b]Warren (Staff) (14/12/2016)[/b][hr]looking much nicer now! [/quote] Thanks Warren...
TURK
-
8 Years Ago
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