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  • From: "Lawrence F. London, Jr." <lflondon@mindspring.com>
  • To: permaculture
  • Subject: Re: question for waterproofing canvas
  • Date: Thu, 22 Feb 2001 09:42:34 -0500


On Thu, 22 Feb 2001 02:45:18 -0800, "Yaya Balinci" <yaya@telus.net>
wrote:

>
>isn't parrafin from the oil industry and mining? i am interested in using a
>mixture that i can theoretically produce from surface materials no mining
>preferably.

Use beeswax then; collect enough pine sap to add to make it more
water-repellent (and flammable).

<><>
>>check BIOFA in Germany, they have awide range of natural/plant based wood
>>protection products,
>>I think the main oil comes from linseeds. (and hemp?)
>>They also have a citrus fruit based thinner (smells nicelly but still a
>>solvent)

If you can find this thinner it may be worth trying to add to the mix
to give it extra penetration when soaking the canvas.

>also, if these are so flammable do i want them on a tent skin that may get a
>spark from the wood stove?

I don't see how you're going to get around this problem so best to be
extra careful with your heat/cooking energy source - add solar:
water-barrel heat storage to reduce fossil fuel use.

>what about beeswax, linseed oil, pine sap and maybe turpentine? what are the
>reasons for the mix, what function does each perform?

the beeswax, oil and pinesap, when heated together, create a product
that, when applied to fabric or wood, will make them waterproof
or at least water-repellent. It needs to be very tacky (needs heat to
make it spreadable) for use on wood but liquid for use on fabric.
I made a batch as a wood finish. You could skip the turpentine
as this has a strong lingering odor, maybe toxic to some people
and makes the mix more flammable. Just use the wax/oil/and pine sap if
you can glean any.
>
>thank you kindly for all ideas and insights.
>
>Michael Hollihn,
>Sustainable Forest-Farm-Garden Design
>Ecosystem Mapping For Sustainable Production of foods and materials,
>I use tree-free paper and digital video documentation
>yaya@telus.net
>604.253.2536
>http://www3.telus.net/circleworks/sustmed2.htm
>Vancouver, BC, Canada
>*better known as NW Coastal Turtle Island
>
>
>> >>I would try heating/mixing: paraffin, beeswax, linseed oil (minimum
>> >>amount necessary) , pine (any conifer) sap and applying that - could
>> >>add a little turpentine to make it less viscous but smell/toxicity may
>> >>make that prohibitive. Heat this mixture in a large container, immerse
>> >
>
>
>

Lawrence F. London, Jr. ICQ # 27930345
lflondon@mindspring.com london@ibiblio.org
http://www.ibiblio.org/ecolandtech




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