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  1. #231
    Senior Member d-p's Avatar
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    Cool Spray, Coat, or Dip?

    GearEngineers

    Spray, Coat, or Dip? Maybe try this?
    WalMart sells Atsko "Silicone Water-Guard" in a spray can in the Camping section. It will spray/impregnate a LOT of fabric for roughly $5.

    This has been working for me ...
    Buy WalMart's $1.50 yd polyester or nylon coat lining material which is roughly an ounce a yard. Create/sew your project, and spray Atsko's Sil Water Guard on the fabric and you just might be impressed how it repels driving rain on a tarp. Not as good as factory SilNylon or the Spinnaker fabrics, but again, you just might be impressed with performance/value.

    I've even found DWR at Wally @ $1.50 a yd. Lot's of coated camo 2 oz yd lately. Better hurry tho, chek EVERY time you are in Wally because, the clerks tell me all fabrics will be gone from Wally in a year or less. Then it'll be www retailers @ $5 -$10 or more a yd.

    FYI: I've been making what I call ''hybrid'' tarps (ie" water PROOF 54" tarp top coverage with 18" bottom sides sewn to lengthen the tarp's overhang coverage.

    You can save a LOT of money this way if you are buying expensive spinnaker fabrics (ie: Cuben or Spinntex. Plus, it adds maybe an ounce or two with the finished overall weight. This will save you 3 Meters or so of that "high dollar" fabric assuming your tarp is roughly 10' long.

    Isn't the HF wonderful?

    GM
    Value gear eingineer

  2. #232
    Senior Member miisterwright's Avatar
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    My DIY Sil tarp

    I just posted about my tarp that I made using this thread. Check it out
    ~Bryan

  3. #233
    Rain Man's Avatar
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    Thumbs up

    I want to THANK y'all for this info about treating and importantly, re-treating, silnylon. Here's my experience from the past couple of days: When I read this thread, I grabbed some of my silnylon stuff sacks, filled them with water, and hung them in the garage. When I went back to check, there was a puddle under each. It made no difference if they were the cheapo Walmart bags or the super expensive brand name outfitter bags. Nor did it seem to matter how long I had had them or how much use they got, so far as I could discern.

    Following the instructions to weigh cheap Walmart clear silicone and odorless mineral spirits on a postage scale, I mixed some up 4-to-1 in a glass jar and applied it with a paint brush.

    Today, almost all the leaks are gone! On the bags I applied two coats inside and one coat outside, all the leaks are gone. (I'll go back and re-coat the remaining sacks.)

    I did learn a couple of things. Apply the solution liberally to thoroughly soak the fabric, but then wipe the excess off just as thoroughly. I used a paper towel. Leaving excess on gives you a thin coating when dry that rubs right off. Not good. I wore gloves to do all this, as I have a box of disposables.

    Multiple thin coats are best, inside and out.

    I used some milk jugs and plastic bottles, and also bent coat hangers, to give the bag the correct form as it hung to air dry in my garage.

    Can't wait to finish the job and see how these hold up on my next hike in a rain storm! They had become noticeably porous recently. This seems to be a cheap, quick, effective fix.

    Rain Man

    .
    Last edited by Rain Man; 07-26-2010 at 16:53. Reason: typo
    "You can stand tall without standing on someone. You can be a victor without having victims." --Harriet Woods
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  4. #234
    MacEntyre's Avatar
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    Great report, Rain Man!

    Thanks!
    "We must, indeed, all hang together or, most assuredly, we shall all hang separately." - Ben Franklin
    www.MollyMacGear.com

  5. #235
    Rain Man's Avatar
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    Question

    Quote Originally Posted by MacEntyre View Post
    Great report, Rain Man!
    Thanks! Now that I've gotten started, I can't stop myself! Spent the last few days treating my old REI silnylon UL45 backpack. Water used to run off it, but lately it has been more like a sponge.

    After a couple of applications of this home brew, water runs right off again. I'm so happy! LOL

    Query: Why does the stuff sometimes "goop up" in solution when it sets overnight? Sometimes, it is fine. Other times, it "sets up" a bit and gets something like really slurpy Jello in it. Sorry can't describe it very well. Okay to just strain this part out and re-use the remaining liquid?

    BTW, I have found that sections of CCF pad work well to give shape to stuff sacks and backpacks while working this stuff in and wiping it off. Styrofoam peanuts help too! Even rolled-up magazines and newspapers. Then I use wooden clothespins to hang 'em to dry.

    Rain Man

    .
    "You can stand tall without standing on someone. You can be a victor without having victims." --Harriet Woods
    .

  6. #236
    canoebie's Avatar
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    Quote Originally Posted by Rain Man View Post
    Thanks! Now that I've gotten started, I can't stop myself! Spent the last few days treating my old REI silnylon UL45 backpack. Water used to run off it, but lately it has been more like a sponge.

    After a couple of applications of this home brew, water runs right off again. I'm so happy! LOL

    Query: Why does the stuff sometimes "goop up" in solution when it sets overnight? Sometimes, it is fine. Other times, it "sets up" a bit and gets something like really slurpy Jello in it. Sorry can't describe it very well. Okay to just strain this part out and re-use the remaining liquid?

    BTW, I have found that sections of CCF pad work well to give shape to stuff sacks and backpacks while working this stuff in and wiping it off. Styrofoam peanuts help too! Even rolled-up magazines and newspapers. Then I use wooden clothespins to hang 'em to dry.

    Rain Man

    .
    Great idea on the pads and newspaper for shaping. I am going to give this a whirl this weekend.
    Revolution is about the need to re-evolve political, economic and social justice and power back into the hands of the people, preferably through legislation and policies that make human sense. That's what revolution is about. Revolution is not about shootouts.

    Bobby Seale


    http://www.riverjourneys.org

  7. #237
    Knotty's Avatar
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    Quote Originally Posted by Rain Man View Post
    ...Query: Why does the stuff sometimes "goop up" in solution when it sets overnight? Sometimes, it is fine. Other times, it "sets up" a bit and gets something like really slurpy Jello in it. Sorry can't describe it very well. Okay to just strain this part out and re-use the remaining liquid?...
    I think there's link between silicone curing and moisture (speeds curing?) so maybe the humidity was different each time you did it?
    Knotty
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  8. #238
    Senior Member Bomber's Avatar
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    If i was to use a fabric that had been treated to be fireproof(from the manufacture) would i have to wash that treatment out first? or would it still bond regardless??


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  9. #239
    No_p55's Avatar
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    A new product

    I was searching the internet and found this product that sounded very interesting. I e-mailed the web site and here is their reply.

    Hello

    I have been reading some of the comments on the hammock.....site. Our product is the answer to practically all of them.

    I would hope that you share the info with them, maybe visit my site at www.20starsealants.com.

    Keep in touch

    Tom Childress

  10. #240
    canoebie's Avatar
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    Quote Originally Posted by No_p55 View Post
    I was searching the internet and found this product that sounded very interesting. I e-mailed the web site and here is their reply.

    Hello

    I have been reading some of the comments on the hammock.....site. Our product is the answer to practically all of them.

    I would hope that you share the info with them, maybe visit my site at www.20starsealants.com.

    Keep in touch

    Tom Childress
    This looks like it has great potential. I have been holding back on sealing my tarps and tents that I have for clients because I get tired of the repellents, mineral spirits, etc. etc. This might just be a better alternative for me, my equipment, and the earth. I am very interested in this.
    Revolution is about the need to re-evolve political, economic and social justice and power back into the hands of the people, preferably through legislation and policies that make human sense. That's what revolution is about. Revolution is not about shootouts.

    Bobby Seale


    http://www.riverjourneys.org

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