how much weight can I expect seam-sealing adds to a shelter's weight?
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mik matra
(mikmik) - M

Locale: Allways on the move
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 06:12:55 MDT Print View

Roughly but kinda realistically how much weight can I expect to be added by seam-sealing my TarpTent Rainbow? If no one has the answer for that particular shelter then a 1 person shelter (not a tarp).

Just playing with numbers......

Charles G.
(Rincon) - M

Locale: Desert Southwest
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 06:47:37 MDT Print View

Unless you really slop it on, it should add no more than an ounce to the weight. What does add weight is painting "non-skid" stripes on the silnylon floor. I added nearly 2 oz doing this to my SMD Luna Solo. I may have overdone the non-skid part though.

Mary D
(hikinggranny) - MLife

Locale: Gateway to Columbia River Gorge
Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 14:21:53 MDT Print View

My first silnylon tent was a Tarptent Squall II. I went a bit overboard and put 2 oz. of seam sealer on it.

Since then I've seam sealed a Tarptent Rainshadow II, a SMD Lunar Solo, a GG/Tarptent Squall Classic and a ZPacks Hexamid Twin. 1 oz. added for each, including floor spots (instead of stripes) on all but the last. Hint: on the floor stuff, to keep pad from sliding you don't need to paint the floor at the bottom end, the top end or right next to the sides. Only put the sealant where your pad will hit! Spots are easier to clean around than stripes. Especially don't paint too close to the door, because that's where the most dirt will stick to the sealant!

Edited by hikinggranny on 10/01/2012 14:22:47 MDT.

Seth Brewer
(Whistler) - MLife

Locale: www.peaksandvalleys.weebly.com
Rainbow on 10/01/2012 14:42:32 MDT Print View

When I sealed my TT Rainbow and added floor strips it added 1.2 oz. - but with floor dots that could be less (I also do all the seam lines 2 times)

Harrison Carpenter
(carpenh) - M

Locale: St. Vrain River Valley
Slopping? Guilty. on 10/01/2012 16:26:57 MDT Print View

Evidently, I slopped sealant onto my Tarptent Notch-- between the seam sealing and anti-slippage stripes, I added 2.1 oz.

Franco Darioli
(Franco) - M

Locale: Melbourne
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 16:37:53 MDT Print View

I do most TTs with under 1oz of silicone.
My preference is for a very diluted version so that it soaks into the stitches.
A bit of a fine line between thin and too thin but essentially you don't want blobs nor drips running off the stitch line..
I used to stripe/dot the floor with a fairly heavy mix now I dilute that well also because it appears that a thin layer does a good enough job.

BTW, when seam sealing make sure you do the base of these Velcro/ribbon/elastic bits that stick out from the fly :

Velcro loop

I had an unfinished DR set up when it started to rain. The next morning the floor had several drops , at first they appeared random then realised they corresponded to those four not yet sealed loops on the canopy.
(the wind had spread the spray around...)

Edited by Franco on 10/01/2012 17:29:19 MDT.

mik matra
(mikmik) - M

Locale: Allways on the move
Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 17:52:13 MDT Print View

I think I went wrong with not diluting the scilicone sealant :(...now I have to look elsewhere to find a bit more weight savings.

Franco Darioli
(Franco) - M

Locale: Melbourne
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/01/2012 18:19:29 MDT Print View

This is a random section of a sealed seam of my Notch :
sealed seam
I know many don't dilute but this may give you an idea of why I do.

eric chan
(bearbreeder) - F
real answer on 10/01/2012 20:26:30 MDT Print View

measure the weight of the tube of seam seal before and after ... that will tell you

but the real answer ... not enough for you to notice in any way, shape or form ... except through a digital scale .... in other words it wont matter ;)

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: real answer on 10/01/2012 20:38:26 MDT Print View

You have to weigh tent before and after because some of it evaporates

Except, you're right it won't really matter

Michael Cheifetz
(mike_hefetz) - MLife

Locale: Israel
Franco - "I'm too sexy for my tarp" on 10/02/2012 01:39:31 MDT Print View

@franco - that is some GOOD LOOKING seam seal - kudos!

btw - if i am using seam GRIP (eg on eVent, Pertex Sheild etc) what would you dilute it with?
Mike

Franco Darioli
(Franco) - M

Locale: Melbourne
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/02/2012 03:19:44 MDT Print View

When I was doing the BD and Bibler shelters I used the provided Seam Grip squirting it onto the seam with a syringe.
It is possible that I diluted some with Shellite (white spirit/Coleman fuel) but maybe that is what I was using then to dilute silicone, not sure.
The last time I used Seam Grip I think was about 7-8 years ago...

mik matra
(mikmik) - M

Locale: Allways on the move
Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/02/2012 04:01:22 MDT Print View

Franco that is some sick seam sealing man....you've been practising haven't you? :)

.....mine doesn't look like that at all.

Anyway of removing seam sealing???...and starting again?

Franco Darioli
(Franco) - M

Locale: Melbourne
how much weight can I expect seam-sealing adds to a shelter's weight? on 10/02/2012 15:31:49 MDT Print View

Not worth it in my oppinion.
I have seen comments about the sealing peeling off, I just think that the wrong sealant was used , if that happens you can try scraping it off but it is a messy job.
A mate of mine (sells tent in a local shop...) did a tarp with the wrong sealant and that started to peel not long after, I scraped some off with a toothbrush and a blade and then did the other side for him.

Dave U
(FamilyGuy) - F

Locale: Rockies
Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/02/2012 15:38:18 MDT Print View

I use Henry's approach and use a small foam brush. 3 or 4:1 ratio of mixture. The only way I can tell I have any sealer on is by touch.

Added 1.2 oz to the Notch and that is with painting the floor with slip stripes as well.

jerry adams
(retiredjerry) - MLife

Locale: Oregon and Washington
Re: Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/02/2012 17:14:13 MDT Print View

zero

I never seal the seams on my silnylon tents and never noticed any leakage

In Oregon I get a lot of testing

I have pyramid tent that has seams at steep angle so that helps

you might want to try your tent and not seal it until you notice it leaking

I sew on these velcro strips to keep door open, and I've noticed them to leak, so I seal them.

mik matra
(mikmik) - M

Locale: Allways on the move
Re: Re: Re: how much weight can I expect seam-sealing adds to a shelter's weight? on 10/04/2012 03:36:14 MDT Print View

Oh why did I not dilute?????? Or just paid TarpTent to seam seal for me(probably you Franco would have done the job then for them)??????

Lesson learned. Though wish I would have learned on a sh1tty tent and not on the Rainbow I got....I absolutely love this home away from home :)!!