Polycro or Tyvek

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Polycro or Tyvek

Postby Kott » Tue 23 Jun, 2020 7:34 pm

Hi,

Do we still need groundsheets? If so, polycro or tyvek?
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Re: Polycro or Tyvek

Postby Zapruda » Tue 23 Jun, 2020 7:46 pm

Never for tents but I often take polycro if I plan to stay in a hut or Tyvek when I think I’m going to cowboy on some granite.
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Re: Polycro or Tyvek

Postby Lamont » Tue 23 Jun, 2020 7:56 pm

Yep, depends what's under or likely to be. I use normal or double thickness polycryo. Don't have any Tyvek.. want a small bit to sit on though. Although was grinding around seated for a couple of hours before bed on a scrap of the double thickness poly on hard ground and didn't puncture it.
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Re: Polycro or Tyvek

Postby Neo » Tue 23 Jun, 2020 7:58 pm

Think tyvek would be stronger and last longer than polycro? Builders plastic can be a bit heavy.
I do use one for tents or under a tarp. Saves the air mattress and tent floor a bit.
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Re: Polycro or Tyvek

Postby crollsurf » Tue 23 Jun, 2020 8:37 pm

I like Tyvec because it's stiffer and won't get blown around as easily. Good ground sheet and to lay gear out, prepare food but it's a lot heavier than Polycro. Polycro is really only good as a waterproof layer so great when Tarping as ground sheet but not much else.

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Re: Polycro or Tyvek

Postby Petew » Wed 24 Jun, 2020 7:22 am

I prefer polychro. I have used the same sheet for 3 years and it's still in excellent condition. I highly recommend folding and taping the edges. I have tie outs at the corners too (with Bungy) which stop it blowing or moving around. Used with a tarp and as a ground sheet under my tent.
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Re: Polycro or Tyvek

Postby Franco » Wed 24 Jun, 2020 8:51 am

BTW, Polycryo is a name made up by Gossamer Gear as their brand name for the type of polyolefin used for window insulation.
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Re: Polycro or Tyvek

Postby Tortoise » Wed 24 Jun, 2020 9:00 am

Petew wrote:I prefer polychro. I have used the same sheet for 3 years and it's still in excellent condition. I highly recommend folding and taping the edges. I have tie outs at the corners too (with Bungy) which stop it blowing or moving around. Used with a tarp and as a ground sheet under my tent.
Great idea. Could you please post a pic showing how you did the tie outs?
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Re: Polycro or Tyvek

Postby Kott » Wed 24 Jun, 2020 9:13 am

good to know...reason I asked is that I've never used anything under my tents and I just got fancy DCF tent I'm worried that rocks and all the spicky little things in the dessert puncture that new fancy tent.

I also never worried about the weight and suddenly its a thing that I think about :D
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Re: Polycro or Tyvek

Postby Petew » Wed 24 Jun, 2020 9:17 am

I used a bit of plastic (ice cream container) then two small bits of duct tape to reinforce. Then a hole punch. It has held up extremely well. Made from a double sliding door insulation kit, big enough for two people with room to spare. Even with the heavy tape, rolled edges and Bungy cord it only weighs 99g
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Re: Polycro or Tyvek

Postby Tortoise » Wed 24 Jun, 2020 10:17 am

Thanks, Pete. Looks great. Also, what's the benefit of the rolled edges, and what tape did you use?
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Re: Polycro or Tyvek

Postby Petew » Wed 24 Jun, 2020 10:19 am

Double sided tape. Rolled edges stop it from tearing due to nicks/cuts.

The door insulation kit came with the tape but any Scotchgard type double sided tape will do.
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Re: Polycro or Tyvek

Postby Petew » Wed 24 Jun, 2020 10:27 am

Pictured here in typical setup on Hilltop to Katoomba walk, winter 2017.

Tyvek semi Bivi bag/bag cover things from Terra Rosa gear are excellent if you do a lot of tarp camping.
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Re: Polycro or Tyvek

Postby ChrisJHC » Wed 24 Jun, 2020 2:00 pm

I used Polycro when forced to go to ground on the Larapinta (i.e. no trees around to hang my hammock from.

Lasted one night on the rocks!

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Re: Polycro or Tyvek

Postby Petew » Wed 24 Jun, 2020 2:18 pm

Mine is three years old and in good condition. It is the slightly heavier weight polychro and edges are taped. I also clear rocks and pointy sticks out of the way if possible.

Obviously not easy on the Larapinta as it's made from sharp rocks and sticks.....
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Re: Polycro or Tyvek

Postby Drew » Wed 24 Jun, 2020 3:44 pm

After getting a leaky tent floor while the rest of the tent was in good nick I decided to always use a groundsheet with my new tents. I haven't quite lived up to that resolution, but at least I always use one when car camping (tyvek) and sometimes on hikes, especially if I think I'll be pitching on gravelly/rocky ground. Or if I'm not taking the tent inner. The tyvek is much easier to use and more durable in my opinion, but much heavier than polycryo.
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Re: Polycro or Tyvek

Postby Joynz » Wed 24 Jun, 2020 10:06 pm

Would always use a footprint or a groundsheet (having had a really nice Exped tent floor get a bit leaky over time although the top part is still in perfect condition).
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