My Flip-pac non waterproof "rain fly", HELP!

SD_Nissmo

Observer
So I have had my flip-pac mounted on my 2005 Nissan Frontier crew cab Nismo for over a year. I have used and loved the flip-pac in a variety of climates.

This weekend I was on the Mojave Road in some serious rain that pounded my pac the WHOLE night.

I know that the FRP fly is designed for moderate rain and the design in and of itself is not a four season set up. I am hoping someone has some experience adding to the water proof properties of the FRP rain fly. Any spray or brush on coatings to make it truly water proof?

My experience went like this: Set up camp and flip-pac with the rain fly attached. In the past it has weathered snow, sleet, and light rain with out problems, it started to rain pretty hard at about 10pm, got inside my bag plenty warm, not a drop of rain, about two in the morning rain still coming, a bit of condensation no biggie, few hours later drips on the face, carpeted "shelf" inside flip pac near hinge area now soaked, standing water, hour later, hips feeling cold, realized fiberglass "bed pan" area filling with water and now soaking through mattress and sleeping bags, wife NOT happy, water now running underneath shell carpeting (guessing) and dripping from shell where meets truck bed, dogs NOT happy.

As the rain continued well into the morning I tried to trace the problem. It seems that as the FRP tarp becomes soaked, the water then soaks the flip-pac material, which condenses on the metal support hoops, then water runs down the metal tubing into the "bed pan" and onto the shelf area. The water also gathers around the "bed pan" area where the lip of the fiberglass meets the channel the material slides into, eventually seeping into the mattress eventually soaking all of your bedding and making you wonder why the "F" you spent 3K on a tent wishing you had bought a Four Wheel Camper.

All kidding aside the FRP fly is in NO WAY WATERPROOF. Now that I am home and my rig is all dry I am trying to figure out a way to seal up the fly.

Clear water proofing weakness with metal hoops running into bed pan area. Also anyone have experience changing out mattress with a closed cell foam to avoid it acting like an expensive sponge? Considering a bag or liner of some type.

As a note I secure the fly with tightly and securely overlapping the entire flip-pac to keep wind/ water intrusion.

Help!
 

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WASURF63

Adventurer
That flat out, sucks!
I had a similar problem on a much smaller scale last year when I finally used my FRP rainfly in some serious PacNW rain. I thought it might have just been a condensation problem, but proved that theory wrong on a couple more outings with similar results.
I went with a suggestion from Martyn @AT to try a NikWax wash-in application on the fly itself. So far no more leaks.
I think TACODOC even went so far as to apply the NikWax spray product directly to his ATFP tent in combo with the above stated application?

Here's a link :http://nikwax.com/en-us/activity/index.php?activity=OUTDOORS
You can also buy this stuff at REI. Good luck.

There is also a thread and a user post or two on the aftermarket fly by SLO Sails. Looks like it might be a winner?
 
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Martyn

Supporting Sponsor, Overland Certified OC0018
I would treat the whole fly sheet with a Nikwax product like TX Direct or Tent and Gear Solar Proof.

Failing that we are selling aftermarket flysheets made by a different company.

Or what he said above :)
 

paulj

Expedition Leader
I had leakage problems with my Wildernest, particularly during the rainy 1st summer trip to Alaska. Part of the problem was that I didn't seal the seams properly before leaving home. The Wildernest did not have a separate fly. But the connection between tent material and the fiberglass 'bed pan' also allowed water to collect under the mattress.

I ended up wrapping the mattress in a waterproof tarp.

But the real solution was to throw a poly tarp over the whole thing. Eventually I tied a tarp to two long bamboo poles. I could roll the whole bundle up and strap it to the roof rack. In camp the poles made handling the tarp a lot easier.

How old is your Flippack? A waterproof coating more than 20 yrs old could be delaminating.
 

Dave Bennett

Adventurist
This was about as easy a project as you will ever do. I used about one liter of the NikWax Solar Proof on the FlipPac itself and have another liter for the storm cover. Not only is it a good wax that soaks in nice and gets in all the seams and stitching, it also provides some UV protection for your tent fabric.

Here is what I used on mine:
102_3482.jpg



I also worked on the storm cover, replacing the bungies that FRP has on these and replaced them with something a little more serious - secure and adjustable tie downs from Nite Ize.
This ought to make it easy to secure the cover!
http://www.niteize.com/collections/figure-9/products/figure-9-tent-line-kit

102_3490.jpg
 

SD_Nissmo

Observer
Sweet,

Thanks for the rapid advice. My flip-pac is less than 1.5 years old to answer the previous thread.

I will order the supplies Tacodoc recommended asap, hope that helps. Cold I can deal with, wet not so much.

I also secure my tarp with Nite Ize.
 

paulj

Expedition Leader
Could you tell whether the rain was rolling off the fly, or whether it was pooling?

Something that new should not be leaking.
 

abeaudin1971

Adventurer
Paul

Mine was the same - about the same age and an FRP fly on it. I treated it (the fly) with Nikwax and it improved..

Question for TacoDoc - Nikwax, when you treated your actual flippac tent (as opposed to the fly) - did you do it on or off the truck? How did you keep the nikwax off the truck finish or did you get some on the finish and just wash it off?

-a
 
There is also a thread and a user post or two on the aftermarket fly by SLO Sails. Looks like it might be a winner?

That'd be me. If I wasn't sick I would have had the FP and SLO fly up to test it during that same storm. Hopefully we get some more rain soon so I can test in my driveway rather than on the trail.
 

Dave Bennett

Adventurist
Paul

Mine was the same - about the same age and an FRP fly on it. I treated it (the fly) with Nikwax and it improved..

Question for TacoDoc - Nikwax, when you treated your actual flippac tent (as opposed to the fly) - did you do it on or off the truck? How did you keep the nikwax off the truck finish or did you get some on the finish and just wash it off?

-a

I treated it with tent deployed, on the truck. Make sure you use a wet rag to "rub it in" per the directions and pay attention to the seams and under the long vent topside (I used a ladder). The wax is tenacious and required some good elbow grease to get it washed off the truck but I think it was worth it. Mucho peace of mind now ;)

I think the big weakness with the FRP fly is that those seams are made with big thread/needles and looks like they dont seal them with anything at the factory...
 

lpmitch

New member
Same thing happened to me the second time I used the rain fly. It was raining pretty hard all night with a lot of wind. I saw Tacodoc's post on the seam seal/nikwax. So far I have only sealed the seams. I used the rain fly last weekend up in Los Banos during a few nights of good rain and I had no major issues. I removed the mattress this morning and It was slightly damp. I'm hoping with the nikwax it will totally solve the problem.
 

paulj

Expedition Leader
Is there anything in the product manual about sealing the seams? I initially overlooked that with my Wildernest years ago. These days, factory sealed seams are common, at least from manufacturers like Kelty and MSR. Flippac may have too small of a production run to justify this extra step.
 

sdmarkus

New member
Campin' in a Nissan?!:smiley_drive:

You got a bed pan in that thing J? Explains alot:Wow1:

Looking forward to round 2, not sure we could have fit two more dogs and the both of you in our toasty warm and dry ATC:smileeek:
 

VikingVince

Explorer
SD_Nissmo...what a bummer to get that soaked.
Over the years, I've often wondered how truly waterproof the Flippac storm covers would be...now I know! Sounds like TacoDoc has solved the problem with the Nikwax.
I was always too frugal (or cheap!) to buy the storm cover...so for years I've used a big poly tarp that I cut down, rigged up a way to secure it, and it extends about 8-12" below the tent portion of the flippac. Never had any leaks using that although have had some condensation in long heavy rain. BajaTaco dubbed it "the big blue condom"...so it doesn't look as sexy as the storm cover...but you can use it over and over!:):)

Edit: I also thought maybe I could solve the condensation problem by creating a vapor barrier...although I never got around to trying it. The idea was to create a space between the rain cover and the flippac by using light styrofoam blocks (the green things they stick fake flowers into)...or some other easy means of creating that space.
 
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