SP Handi Pack - how handy?
Printed From: Yachts and Yachting Online
Category: General
Forum Name: Repair & maintenance
Forum Discription: Questions & tips on the subject
URL: http://www.yachtsandyachting.com/forum/forum_posts.asp?TID=3868
Printed Date: 11 May 25 at 10:18pm
Software Version: Web Wiz Forums 9.665y - http://www.webwizforums.com
Topic: SP Handi Pack - how handy?
Posted By: ColH
Subject: SP Handi Pack - how handy?
Date Posted: 27 Jan 08 at 5:55pm
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I need to do a small amount of epoxying, and am then probably not going to use the materials for a while. I see SP's "Handi Pack" comes with pump dispensers, but do these last a fair time i.e. if I come back to them after 6 months are they going to be unusable - if so then I figure might as well use the tried-and-tested pot+stick method. Any experiences with the pumps? |
Replies:
Posted By: tgruitt
Date Posted: 27 Jan 08 at 6:06pm
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Well you will still need to mix it in a pot with a stick if you use the handipack or not. Get 2 syringes and measure out the quantities with those, it's probably a cheaper way of doing it.
------------- Needs to sail more... |
Posted By: ColH
Date Posted: 27 Jan 08 at 6:11pm
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Good point ------------- |
. Just managed to find SP's website and some datasheets. They claim the pumps can be cleaned out with hot soapy water + solvent.Posted By: tgruitt
Date Posted: 27 Jan 08 at 6:13pm
Sounds like its ideal for that job then. You just need to make sure you dont get the resin and hardner mixed on the pumps themselves, because then they will never work again! ------------- Needs to sail more... |
Posted By: Lukepiewalker
Date Posted: 27 Jan 08 at 6:20pm
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I've had mine for a few years and it still works ok (possibly a bit over it's shelflife to be honest...)
------------- Ex-Finn GBR533 "Pie Hard" Ex-National 12 3253 "Seawitch" Ex-National 12 2961 "Curved Air" Ex-Mirror 59096 "Voodoo Chile" |
Posted By: alstorer
Date Posted: 27 Jan 08 at 8:19pm
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For non-aerospace use, two part epoxy has pretty damn good shelf life. The hardener is the part which does go a bit, though as long as you close the pot/tube/whatever properly carbonation will be minimised.
Pro tips: adding more than the stated hardener doesn't set it much quicker, but does result in a much worse properties- most especially, reduced water resistance due to the unreacted amine groups, but also immediate mechanical strength. And always wear disposable gloves. |
Posted By: HannahJ
Date Posted: 27 Jan 08 at 8:32pm
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We take the pumps out and put the original lids back on the bottles, then wrap the ends of the pumps in clingfilm, it works pretty well.
------------- MIRROR 64799 "Dolphin" The pessimist complains about the wind; the optimist hopes it will change; the realist adjusts the sail |
Posted By: Garry
Date Posted: 27 Jan 08 at 9:10pm
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I just leave the pumps in and keep them in a cool dark place, never had a problem although you have to reprime the pumps before using them to measure. ------------- Garry Lark 2252, Contender 298 www.cuckoos.eclipse.co.uk |
Posted By: Lukepiewalker
Date Posted: 27 Jan 08 at 10:16pm
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They do say in the instructions to stick a screw up the end of the pump.. My problem is I don't use that much epoxy..
------------- Ex-Finn GBR533 "Pie Hard" Ex-National 12 3253 "Seawitch" Ex-National 12 2961 "Curved Air" Ex-Mirror 59096 "Voodoo Chile" |
Posted By: scottish_tornad
Date Posted: 28 Jan 08 at 8:38am
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Had mine for about three years now . leave the pumps on and its still seems ok just used some last night on a RC glider im building stuff left in pot after mixing is rock solid this morning. ------------- tornado GBR389 www.dalgetybaysc.org/home.htm |