Monday, April 8, 2019

India-Rubber Waterproof Fabrics: Tracing the Tacky Tarpaulin Toxic Canvas to its source: colonial TENTS in INDIA!

https://www.indiamart.com/rkindustries-newdelhi/outdoor-tent.html#tarpaulin-tent

Pole Material
Aluminum
Material
Canvas

So today I saw a "canvas tarp" at a different Midwest DIY store - and it had NO smell. So I bought it, since the other tarp is still "tacky" with Naphtha oil. The smell is already better - I would say 50% better - since I drove with that tarp tied to the top. So lots of evaporation.

The Chicago Canvas company - I read that they source their canvas from India....

 We are manufacturer of conventional canvas tarpaulin made from wax treated and chemically treated canvas fabrics. Canvas tarpaulin are heavier, thicker and has better strength properties compared to PE Tarpaulins.

Sure enough - I found the SAME type of canvas.



And the one I got today that had absolutely no smell? It was advertised and labeled as CANVAS but nope - it's really NOT canvas. Oops. It's actually Polyester but covered with Silicone. And I immediately opened it and poured water - it was much better water repellency. The water just "beaded" up. Pretty impressive.


Our breathable waterproof tarps are 20 mil. thick and made with an incredibly strong Rhino-Tex canvas material, 100% silicone-coated polyester.

Still it is Polyester and only 10 ounce so apparently not as strong as the 12 ounce canvas... that is considered 18 ounce when treated... with the Tacky Naphtha....


So my suspicion was that this Indian-made canvas was left over from British colonialism. What is funny is the Chicago Canvas company says specifically - not to use the canvas for an awning on a canopy or tent due to the oil/wax smell. But ambiguously it does state the canvas is good for camp grounds!! wha? Here are their images:



Indian British military canvas tent:



So I would hope that above tent is really well-aired out - cuz those Hexane fumes are carcinogenic. Another name for Naphtha is Benzin - meaning it contains Benzene - a known carcinogenic!! The industry covered up Benzene as a carcinogen. oops.
 
1879 - ‎Chemistry
chemistry, great confusion Las arisen as to the nature of the liquids known in commerce ... Of these, the hydrocarbon benzol or benzene, C0116, is the chief and characteristic constituent of coal-tar naphtha,
I kept having to use various means to get rid of the tacky oil toxins off my skin - vinegar and peppermint essential oils and lots of soap, scrubbing with brush, etc.

Oh that link says the benzene is in very little amounts in "petroleum spirits" - even though it is the COMMERCIAL name for "petroleum spirits" made from naphtha...

NAPHTHA (PETROLEUM SPIRITS OR BENZIN
So that's from the previous blogpost.

So it's mainly Heptane.

And now... this is the typical treatment on tents theses days - the nylon tent like I got.

 Michigan health officials issued an advisory for waterproofing products in spray cans because of numerous reports of serious respiratory illness in people and their pets. The chemical culprit causing is a Teflon-like chemical called fluorpolymer and its chemical relatives.
 Right - it says the Canvas is treated a "Indian-Rubber" via Naphtha and Petroleum Spirits - and then a FAN is used to get rid of the Naphtha

 That's from 1892

 Great Britain!!

Just as I suspected....


Tents are also known as Tambu or Tamboo and Chouldaris in the Military


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