Subject: Re: [harryproa] Re:: Infusion epoxy
From: "JWM Bijlard jwm.bijlard@gmail.com [harryproa]" <harryproa@yahoogroups.com.au>
Date: 8/23/2018, 2:39 PM
To: harryproa@yahoogroups.com.au
Reply-to:
harryproa@yahoogroups.com.au

 



On 23-8-2018 15:58, StoneTool owly@ttc-cmc.net [harryproa] wrote:
 

     I've been pondering exactly the same issues on pot live versus viscosity.   Looking at Raka epoxies, they have a low V, but it has only a 30 minute pot life.... it seems like twice that would be more desirable for infusion.... Your time just mixing degassing and distributing it to the different pots you are infusing from could take up a good portion of that time.

You can give those pots a refill.

    It seems to me that an infusion epoxy should ideally be low V and have a fairly decent pot life.

I agree.

A big deal is made of non-blushing, to the extent that West Systems recommends using peel ply and ensuring that it is well saturated so that the amine blush will form above the peel ply......... However other reading reveals that it takes only soap and water to wash it off..... perhaps with a light scrub using a scotchbrite pad.  Seems like the extra cost & time, and increased resin use hardly make peel ply worthwhile except in some specific areas.

Most workspaces  are not suited to perform a thorough rinsing with soap and water.
On the other hand, I've only ever experienced amine blush on surfaces exposed to the atmosphere while curing.
I don't think it will occur while infusing.

Regards,

Han.

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Posted by: JWM Bijlard <jwm.bijlard@gmail.com>
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