[pure-silver] Re: Sink Decisions and Waterproofing
- From: DarkroomMagic <info@xxxxxxxxxxxxxxxx>
- To: PureSilverNew <pure-silver@xxxxxxxxxxxxx>
- Date: Tue, 19 Jul 2005 16:34:41 +0200
Richard
The term 'fiberglass', as a plastic material, comes indeed from strains of
glass fibers, which in combination with an (epoxy) resin make what we call
'fiberglass'. The glass fibers or the resin alone are of little use. You can
think of the glass fibers as being similar to the reinforcing steel rods
used in concrete.
I'm not familiar with the resins discussed here, but if someone 'brushes on
fiberglass' he is most likely talking about the actual resin and not the
glass fibers.
Regards
Ralph W. Lambrecht
http://www.darkroomagic.com
On 2005-07-19 04:13, "Richard Knoppow" <dickburk@xxxxxxxxxxxxx> wrote:
>
> ----- Original Message -----
> From: "Gary W. Marklund" <Gary@xxxxxxxxxxxx>
> To: <pure-silver@xxxxxxxxxxxxx>
> Sent: Monday, July 18, 2005 12:40 PM
> Subject: [pure-silver] Re: Sink Decisions and Waterproofing
>
>
>> On Monday 18 July 2005 13:59, Richard Knoppow wrote:
>>
>> Richard,
>> I was using a fiberglass kit from Home Depot. The mixture
>> hardened very
>> rapidly. I only had about two minutes of working time per
>> batch. The cloth
>> had a tendency to lift up, fold or whatever. I ended up
>> with very sharp edges
>> of fiberglass covered cloth and large "bubbles" of
>> fiberglassed cloth. I'm
>> sure someone more experienced with working with it on a
>> regular basis could
>> have done a much better job. The areas where I just
>> brushed on the fiberglass
>> directly to the wood have a nice glossy appearance.
>> Gary
>>
>>> What problems were caused by the fiberglass cloth?
>>>
>
> Got it. I have never built a sink or used this type of
> fiberglass so I am very interested in this discussion. I am
> now curious about the brush-on fiberglass. Is this truely
> made of glass or is it epoxy or some other resin? My
> understanding was that fiberglass cloth was used to
> re-inforce a resin coating to prevent it from cracking or
> chipping with time. Obviously, one would want a coating that
> dried, or rather cured, slowly enough to eliminate the
> troubles you talk about. Perhaps the cloth is just not
> needed for a thin coating.
> I wish I had a practical reason for asking this. My
> darkroom is a somewhat temporary affair that masquerades as
> a kitchen most of the time. Its pretty small but, curiously,
> I have had more trouble from small size when cooking than
> when developing. I have a collapsible duck board that fits
> across the sink and attendent counter area which allows me
> to use 4 16x20 trays. The washer goes in another sink in an
> adjoining utility room with a laundry tub, or for fiber
> prints, the bathtub, which is in a bathroom only a few steps
> away. All of this gets set up and put away again each time.
> Not as much work as it sounds. One day I will have a
> permanent darkroom again, probably by then it will be a
> museum piece to show how things were done before digital.
>
>
>
> ---
> Richard Knoppow
> Los Angeles, CA, USA
> dickburk@xxxxxxxxxxxxx
>
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