Author Topic: Tent Waterproofing  (Read 828 times)

Online n3303j

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Tent Waterproofing
« on: May 25, 2025, 11:30:54 AM »



So I bought this NOS military surplus one man combat tent directly from Eureka in Binghamton, NY about 20 years ago.

The fly is internally blackout coated with a waterproofing agent. After 20 years it has some spots that flaked off and they drip in a heavy rain.

I tried a water based sealer. It dissolved in a heavy rain. Duh!

Was thinking about dabbing the leaky spots with Flex Seal.




Anyone know of any reason this should not work?
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Re: Tent Waterproofing
« Reply #1 on: May 25, 2025, 11:32:54 AM »
Weight?

What about thinned silicone?
Or spraying on Nikwax?
Or melting in paraffin wax?

Here’s a YouTube video on both silicone and wax methods:

https://youtu.be/HedRbIsM75M?si=zHkrKAP4qo5HFoLR
« Last Edit: May 25, 2025, 12:31:23 PM by Dirk_S »
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Online n3303j

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Re: Tent Waterproofing
« Reply #2 on: May 25, 2025, 01:53:43 PM »
All decent ideas except I already have a can of Flex-Seal in my shop.

I'm not looking to treat the whole fly. I just want to dab it over the pinholes. Just a matter of hang the fly  stretched out. Backlight it and dab the sealant over the spots I see light through.

Just want to know if  anyone has had problems with Flex-Seal becoming tacky with age or any thing else that would make it unsuitable for repairing a fly that gets rolled up with the tent.
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Offline Kiwi_Roy

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Re: Tent Waterproofing
« Reply #3 on: May 25, 2025, 02:17:11 PM »
You have had it 20 years

A new tent will fix it LOL
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Re: Tent Waterproofing
« Reply #4 on: May 25, 2025, 04:02:11 PM »
Friend with a soft top on their Jeep tried patching it with flex seal tape and then spray, neither held up to folding and may have also failed in part to UV exposure.

Online n3303j

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Re: Tent Waterproofing
« Reply #5 on: May 25, 2025, 05:04:57 PM »
You have had it 20 years

A new tent will fix it LOL
I've had it ONLY 20 years. It's military quality and made in Binghamton, New York. I don't have anorher 20 years. Don't want to waste a good tent on an old guy. It's younger than any of my bikes. I don't get rid of them just because they need maintenance. They will outlast me.
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Re: Tent Waterproofing
« Reply #6 on: May 25, 2025, 06:06:38 PM »
Among other things, we have a mint 1967 Commander pop-up and are involved in 1-2 old camper groups/forums.  Flex seal does not have a good track record in those groups.  It works for a while (apparently just long enough to film a tv commercial...), then reportedly becomes a total abject failure and liability to adequately remove in hopes that a proper repair can be made. 

My wife worked as a professional guide, running camps, lived in a tent for 4 years, etc etc hard core btdt doesnt screw around with such things.  We have had our big Eureka Copper Canyon tent for nearly 20 yrs and love it.  Dont waste a good tent. Fix it right. Use legit product like nikwax waterproofing or seam sealer as suggested. 

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