[Rhodes22-list] Sails and sacrificial cloth

[Tootle]

Mary Lou said, "You are such a conservative!"  Actually the terms "Liberal
and Conservative" have become twixt in recent years.  Historically there was
a time when those who espoused personal freedom and individual
responsibility were call liberal.  Now modern day 'Liberals' advocate social
controls, 'socialism', and authoritarian controls.  Just follow the logic of
the National Democratic Party."

As to black and blue sail cloth, you said, “I know that in older cotton
materials black and red cloth do not stand up as well.”  I pointed out the
dye that works as UV protection ‘carbon black’.  I guess that means there
are other ways to make black color. 

 Notice that I did not say red or dark red as having UV resistance
properties.  And I did not say that the popular Sunbrella’s Blue is UV
resistant.  Although there is certainly a lot of that color in use, so maybe
it is.

What fabric has good abrasion resistance?  I have not studied that question. 
I look forward toward your analysis.

I would like more information on the lighter weight fabric before I got it. 
Also consider one of those lines in the leach of the main sail that allows
tension adjustment.  On full roach sails it makes a difference.  

However, just because that fabric is a little lighter, I have not seen
justificatio to use it.  And as I have said, I am leery of white as a UV
protection. I think that the term sacrificial has significance here.  The
carbon black dye stops penetration of UV to the underneath fabric. 

Adding this to the authoritative reply of Captain Rummy, I would say that
white would not last as long.

Ed K
Greenville, SC, USA
“If you want to build a ship, don't drum up people together to collect wood
and don't assign them tasks and work, but rather teach them to long for the
endless immensity of the sea."  Antoine de Saint-Exupery



 


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