[PSUBS-MAILIST] Windows

[hank pronk]

Jon,
Agreed, I am concerned of coarse about the buffing temperature.  In my case the ports are in quite good condition, and should need minimal buffing.  The mbt windows are in rough shape but they are not under stress like a port so we can get tough with them.  
Hank



On Sunday, December 15, 2013 2:17:09 PM, Jon Wallace <jonw at psubs.org> wrote:
  

It looks like GL has similar wording, depending upon actual usage
      and detailed testing agreed to by GL a service life extension may
      be granted.  For the person desiring a certified vessel I agree
      new windows would probably be a cheaper route unless you were very
      sure the existing windows would pass the required testing. 
      Scratches are a no-no however so you really need to get them
      completely buffed out.  The heat produced in buffing may justify
      annealing however if the windows were manufactured to PVHO
      standards there's a lot of safety factor built in.



On 12/15/2013 4:01 PM, hank pronk wrote:

Jon, 
>Yes, that is what I call the bible.  I just read on page 940 that ABS accepts the extrapolation method to determine remaining service life. The test is very extensive and for a flat disk window  it would probably be cheaper to buy new windows.  I did not see that re- annealing helps. 
>Hank 
>  


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