tegwin
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| posted on 21/10/08 at 09:36 PM |
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Filler wont set
This is a pain in the backside...
Bought some filler from a well known parts shop..
Mixed it as per the instructions on the tin....
Filled the hole...
And now 30 hours later....its still not totaly hard...It has a rubbery texture to it...which will make sanding almost impossible... It says on the
pot that you can sand it within 20 mins... Will it cure eventually or am I going to have to hack it all out and start again?
I am 100% sure the mixture was correct...I tripple checked my measures to stop exactly this happening...GRR!!!
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Would the last person who leaves the country please switch off the lights and close the door!
www.verticalhorizonsmedia.tv
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tomgregory2000
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| posted on 21/10/08 at 09:43 PM |
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weather to cold?
try applying some heat.
is it epoxy or polyester resin?
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blakep82
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| posted on 21/10/08 at 10:14 PM |
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wierd. my understanding was with these things, that as long as hardener was mixed in properly, that technically you don't have to use as much as
it says, but it will harden, it'll just take a very long time? as a result, i've never actually mixed as per instructions,and never had a
problem. always worked alright.
how much hardener did you put in? which one is it?
________________________
IVA manual link http://www.businesslink.gov.uk/bdotg/action/detail?type=RESOURCES&itemId=1081997083
don't write OT on a new thread title, you're creating the topic, everything you write is very much ON topic!
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thunderace
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| posted on 21/10/08 at 10:56 PM |
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add some heat had some p40 not seting last week as it was 6deg in the garage and had to use the infered heater on it after waiting all day to see if
it would go hard.
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stevebubs
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| posted on 21/10/08 at 11:36 PM |
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It's pretty chilly outside. I'd give it a few more days....
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Danozeman
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| posted on 22/10/08 at 06:37 AM |
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What is it isopon?? Try a heat gun on it. As said normally you dont need as much hardner as the tin says.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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Fred W B
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| posted on 22/10/08 at 06:45 AM |
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I've been there.
In my case it's not putting enough hardner in - if it doesn't go off in half an hour or so it's not going to. I scrape it off with a
chisel and start again.
I do usually use about half the hardner thay reccomend, but it's a fine line then before you don't put enough in.
That said I have heard of people saving this suituation (too little hardner) by wiping the filler with carbon tetrachloride
Maybe you got a duff batch of hardner?
Cheers
Fred w b
[Edited on 22/10/08 by Fred W B]
You can do it quickly. You can do it cheap. You can do it right. – Pick any two.
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smart51
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| posted on 22/10/08 at 07:00 AM |
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If it has started to cure then the problem is too little catalyst, catalyst not mixed in well, or too low a temperature. A bit of heat will speed it
up.
Another thing you could try is to mix a small amount of filler with a slightly large amount of catalyst, then spread a thin film of it over the part
set stuff. The extra catalyst may help it all to set. It helps with GRP anyway.
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loggyboy
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| posted on 22/10/08 at 08:22 AM |
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As mentioned above, its chiefly dependent on mix and temperature, but its also depends on thickness, if its plenty thick it will take longer to dry
out.
Mistral Motorsport
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Mr Whippy
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| posted on 22/10/08 at 09:17 AM |
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you must heat it, use a hair dryer till its too hard to touch. No need to scrape it off it will go hard. This will happen in the winter just make sure
the area that you are working on is reasonably warm, have a convection heater and some large cardboard sheets to make a cover to keep the heat in
Fame is when your old car is plastered all over the internet
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maartenromijn
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| posted on 22/10/08 at 09:33 AM |
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To check if the materials are faulty, you could mix some more in the same ratio and place it in living room temperature to cure. The result speaks for
itself.
[Edited on 22/10/08 by maartenromijn]
BLOG: http://thunderroad-super7.blogspot.com/
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indykid
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| posted on 22/10/08 at 02:59 PM |
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not IN the living room though. you'll just make the people that live with you very unhappy!
tom
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MikeRJ
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| posted on 22/10/08 at 03:41 PM |
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Wouldn't make me unhappy, I love the smell of body filler 
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twybrow
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| posted on 22/10/08 at 04:18 PM |
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quote:
Originally posted by loggyboy
As mentioned above, its chiefly dependent on mix and temperature, but its also depends on thickness, if its plenty thick it will take longer to dry
out.
Incorrect I'm afraid - if it is thick, it should actually go off faster....
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RK
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| posted on 22/10/08 at 04:53 PM |
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I have had this problem with body filler from a tube, which is premixed. It comes off in chunks when sanded with 240 grit. Waste of time. And the
epoxy I have put over to smooth it just sands off too once hardened properly.
What is that fibreglass resin stuff you can mix with powder? I don't know what the name is but it is for smoothing over grp. I think
that's what Leepu uses. Anything is better than the brown stuff from the tube (not at home so don't have the name of that either).
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maartenromijn
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| posted on 22/10/08 at 05:22 PM |
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quote:
Wouldn't make me unhappy, I love the smell of body filler
@MikeRJ: The same goes for me!
BLOG: http://thunderroad-super7.blogspot.com/
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Vindi_andy
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| posted on 23/10/08 at 11:25 AM |
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quote:
Originally posted by twybrow
quote:
Originally posted by loggyboy
As mentioned above, its chiefly dependent on mix and temperature, but its also depends on thickness, if its plenty thick it will take longer to dry
out.
Incorrect I'm afraid - if it is thick, it should actually go off faster....
Is that thick as in consistency or depth of fill
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Vindi_andy
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| posted on 23/10/08 at 11:26 AM |
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quote:
Originally posted by MikeRJ
Wouldn't make me unhappy, I love the smell of body filler
To misquote a classic film " I love the smell of filler in the morning. Smells like victory"
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twybrow
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| posted on 24/10/08 at 09:06 AM |
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quote:
Originally posted by Vindi_andy
quote:
Originally posted by twybrow
quote:
Originally posted by loggyboy
As mentioned above, its chiefly dependent on mix and temperature, but its also depends on thickness, if its plenty thick it will take longer to dry
out.
Incorrect I'm afraid - if it is thick, it should actually go off faster....
Is that thick as in consistency or depth of fill
Depth of fill..... Body filler is essentially polyester resin with chalk added. With polyester (and expoxy for that matter), the greater the thickness
(volume) of the material, the faster and hotter the reaction will be. This is why it is inadvisable to mix up large buckets of resin - you are better
off with the same volume split between smaller buckets.
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rusty nuts
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| posted on 24/10/08 at 05:56 PM |
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Has it gone off yet? Reminds me of some "bargain" floor paint I bought years ago 3 weeks and it still hadn't gone off
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