So I did some digging - some people said the smell still lasted even in a year! One person said it took YEARS to get rid of the smell!
The company reply was simply "that is the industrial standard and the smell does go away."
OK that's not good enough for me. So I kept digging. The current "data sheet" for Canvak does not give the ingredients - instead says it's a trade secret. Here is their older one:
Product ID:CANVAK LIQUID WATERPROOFING MSDS Date:01/01/1987) ============= Composition/Information on Ingredients ============= Ingred Name:NAPHTHA (PETROLEUM SPIRITS OR BENZIN) CAS:8030-30-6 RTECS #:SE7555000 OSHA PEL:100 PPM Ingred Name:PARAFFIN WAX CAS:8002-74-2 RTECS #:RV0350000 OSHA PEL:2 MG/M3 (FUME) ACGIH TLV:2 MG/M3 (FUME); 9192 Ingred Name:ZINC NAPHTHENATE (CAS# 12001-85-3) CAS:12001-85-3 RTECS #:QK9275000So https://www.trivantage.com/itemfiles/pdfs/msds/Canvak_MSDS.pdf
Ok that's the current. It's the same product - the yellow color described is the color of Naptha.
OK so next then I dug into HOW to get rid of the strong smell.
VM&P Naphtha refers to a paint thinner/cleaner and solvent whose formal name is Varnish Makers and Painter Naphtha = thus VM&P Naphtha. This is generally a lighter more volatile solvent than Mineral Spirits. The lighter hydrocarbons are called Aliphatic hydrocarbons. Those lighter hydrocarbons are more hazardous than the heavier ones in solvents like Mineral Spirits. They evaporate faster and thus can be inhaled in greater concentrations and more significantly damage our lungs, liver, kidneys and even skin.
So that's why Naphtha is so strong smelling - it evaporates in greater concentrations!!
So then I discovered a "DMT" website that said their Naphtha solvent has to evaporate for WEEKS before the smell goes away.
Fascinating.
So someone asked - how to make the smell go away FASTER! The answer: FANS.
So right now the tarp is draped over the carrier rack on the SUV. So I was gonna just fold the tarp up and tie it down - so it could dry out from the rain. I was HOPING the rain would get rid of the smell
Now I know - that actually by tying up the tarp (loose enough so it catches the wind, but tight enough so it stays on) - THEN the smell should go away quite fast - as a natural fan to evaporate it out.
What will be left is the Paraffin wax itself - that is odorless.
NOW also it's not water proof enough for me yet. The tarp has to "cure" at first - meaning it gets MORE waterproof after it shrinks, after first being wet.
OK. But that still might not be good enough. In which case - if I give a thin coat of the Silicone spray - it turns out... Silicone Spray - the SAME brand I had - is what Kodiak tents prefers for their water proofing treatment - they say the KWIK spray maintains breathability. If they say it does - then I believe it. I was researching that yesterday - as some claimed the Silicone spray does not. But at a THIN lay the silicone does "soak" into the canvas - and so it is "inside" the hollow fibers - and so the "weave" can still breath.
So the idea is that it takes SEVERAL thin layers to keep soaking the oil (paraffin) OR the silicone - into the canvas hollow fibers. In fact Silicone was discovered as an alternative to Paraffin - meaning they do the same thing. And originally it was LINSEED oil and SEVERAL coats were to be applied. Meaning that I should be able to apply ANOTHER coat of "soaking" oil for even better water repellency with the tarp.
BUT FIRST - to get rid of the Naphtha smell - tomorrow we are doing for a little rid. I need to go into the city anyway..... I'm excited I figured out the SECRET.
Funny how this SECRET is not known - instead every one just COMPLAINS about how long it takes to get rid of the smell...with the oily residue.... that is yellowish.
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