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Bill & Sue
Joined: 10 Jan 2006
Posts: 48
Location: Malvern, Worcs. UK (Defford, Croft Farm)
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 Posted: Tue Feb 23, 2010 5:49 am Post subject: Ampreg |
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You may already be aware that Ampreg 20 is no longer produced and the replacement is Ampreg21. (I was not !)
I spoke to Martin Armstrong at Gurit (Née SP Systems) who was very helpful and informative, it appears that Ampreg 21 is almost indistinguishable in performance and rather more user-friendly in health and safety handling terms than Ampreg 20.
Attached is a Health and Safety datasheet for Ampreg he sent me and a note on crystalisation.
I have also spoken to Europa and they confirmed that Ampreg 21 is now the standard item.
Incidentally Martin Armstrong was happy for me to pass on his contact details if anyone wants advice on Ampreg.
Martin Amstrong
Composite technologist
Gurit (UK)
St.Cross Business Park
Newport
Isle of Wight
PO30 5WU
England
tele +44 (0)1983 828103 (direct)
e-mail martin.armstrong(at)gurit.com
website http://www.gurit.com
Bill Bell
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General H&S.pdf |
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73.04 KB |
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483 Time(s) |
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Crystallization_SP.pdf |
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jrgowing(at)bigpond.net.a
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| Posted: Tue Feb 23, 2010 2:35 pm Post subject: Ampreg |
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Bill and Sue
When Ampreg 20 became unavailable in Oz, I changed to West System 105 Epoxy
Resin and West System Slow Hardener which I understand is a widely known
brand in USA as well as Australia.
I have found it good to use ever since and will be surprised if you are not
able to find a supplier in the UK.
JR (Bob) Gowing Kit 327 in Oz
do not archive
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david steade
Joined: 26 Dec 2007
Posts: 32
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| Posted: Wed Feb 24, 2010 2:28 am Post subject: Ampreg |
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I have used some Ampreg 21 for the filling and surfacing jobs on my Tri Gear. I am not very impressed.
Already after 7 months shelf life I had the crystalisation problem and had to heat the resin as advised by Gurit (UK). Also the resin despite post curing goes not seem to harden as well as Ampreg 20 and this affects its ability to sand easily.
I did mix the resin accurately and this problem was consistent. over several mixes. What its like for structural use I don't know.
I would be interested in anyone else's experience with this product.
I must say that for the filling I'm tempted to use West Systems 105 which I understand is OK for this purpose.
Regards
David Steade
[quote][b]
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David Steade |
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jan_de_jong(at)casema.nl
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| Posted: Mon Mar 01, 2010 8:00 am Post subject: Ampreg |
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Steade wrote:
| Quote: | I have used some Ampreg 21 for the filling and surfacing jobs on my
Tri Gear. I am not very impressed.
Already after 7 months shelf life I had the crystalisation problem and
had to heat the resin as advised by Gurit (UK). Also the resin despite
post curing goes not seem to harden as well as Ampreg 20 and this
affects its ability to sand easily.
I did mix the resin accurately and this problem was consistent. over
several mixes. What its like for structural use I don't know.
I would be interested in anyone else's experience with this product.
I must say that for the filling I'm tempted to use West Systems 105
which I understand is OK for this purpose.
I can think of relative humidity and storage temperature as variables to
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which Ampreg 21 may be more sensitive than Ampreg 20.
I have no experience with it.
After trial and error I now use SP106 for surface work (mixes as 1 to
0.18 by weight). Hardens and sands much better than Ampreg 20.
Regards,
Jan de Jong
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