[PSUBS-MAILIST] progress

Fri Apr 29 01:47:23 EDT 2016

Brian,
I had never used spray-on adhesives until the last few  months.  I've 
really liked the flexibility and control you can maintain by  varying how thinly 
or thickly you apply it especially when working with  fabric.  Thin is great 
for temporary bonding; thick for more  permanent.  It has worked very well 
for tacking fabric in place on  irregular surfaces without wrinkling and 
still being able to  readjust/reposition it.  Possibly it would have an 
application in what you  are doing.
Jim

In a message dated 4/29/2016 12:21:31 A.M. Central Daylight Time,  
personal_submersibles at psubs.org writes:

Hank,
                 I've done a lot of fiberglass and resin both polyester and 
epoxy, making  surfboards and such, the resin will go right thru the glass 
no problem.   I would like to see how you could make glass stick upside 
down, especially if  it was coated first.  Trying to do that even if the surface 
is right side  up would be problematic.  With an already wet surface you 
run the risk of  not being able to place the fiberglass perfectly flat, one 
minor screw up and  you would have a wrinkled gooey mess on your hands.   
Ideally  working on a right side up surface would be the best, but short of that 
I  think my glue method worked pretty darn good, I may have to even make a  
youtube instructional video !!   

Brian

--- personal_submersibles at psubs.org wrote:

From: hank  pronk via Personal_Submersibles 
<personal_submersibles at psubs.org>
To:  Personal Submersibles General Discussion  
<personal_submersibles at psubs.org>
Subject: Re: [PSUBS-MAILIST]  progress
Date: Thu, 28 Apr 2016 20:39:02 +0000 (UTC)

Brian,
Be careful, I always wet the surface then apply matting or you run  the 
risk of not having adhesion.  
Hank

On Thursday, April 28, 2016 2:10 PM,  Brian Cox via Personal_Submersibles 
<personal_submersibles at psubs.org>  wrote:

I found another use for my super expensive EPDM adhesive :   Gluing 
fiberglass cloth onto an upside down surface  !   This way I was able to apply the 
epoxy while it was  held up there.   

Brian 

--- personal_submersibles at psubs.org  wrote:

From: Brian Cox via Personal_Submersibles  <personal_submersibles at psubs.org>
To: "PSubs "  <personal_submersibles at psubs.org>
Subject: [PSUBS-MAILIST]  progress
Date: Wed, 27 Apr 2016 21:01:01 -0700

I'm making some good progress in taking care of those pesky pinhole leaks  
in some areas on the ferro cement hull.  I filled the really bad one  
hydraulically with cement, the 3M 5200 is a bit too viscous for the  pinhole leaks 
even with a vacuum going on the hull.  Everything is pretty  closed up now. 
 Finally, I'm doing fiberglass and epoxy resin over the  whole area that 
has been giving me trouble.  I think on my next sub I'll  construct a giant 
rotational single axial machine so I can make sure all the  voids get filled.  
Also, as I've use a lot of fiberglass and epoxy here  and there I'm coming 
to the realization that encapsulating the entire  ferro hull with fiberglass 
and epoxy would be beneficial.  Although, the  ferro cement sailboat book I 
followed to construct my hull, did not recommend  it ( but they weren't 
building a sub).   Getting ready to start  concentrating on lead !    I'll 
probably have to add another  axel to my trailer because of the extra weight ;-) 

Brian

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