Silca Ultimate Tubeless Sealant

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MikeD
Posts: 1006
Joined: Thu Dec 11, 2014 9:55 pm

by MikeD

TobinHatesYou wrote:The printed tape on my 202 NSWs never had any problems with Orange Seal. A sealant that has tape choice, tire choice limitations, an inability to be injected through the valve, that has balled up fibers, that is extremely sticky to the touch…

This is a failed product.
I tend to agree with that.

manystyles
Posts: 59
Joined: Sun Feb 27, 2011 11:23 pm

by manystyles

That’s a shame. I really hope they get these issues sorted out.


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Dizzy
Posts: 4
Joined: Mon May 09, 2022 12:42 am

by Dizzy

This forum has an extremely negative bias. Post anything positive and watch it be ignored.

So let me try a more negative tone!

Seriously... The printing coming off rim tape is not exactly world ending. The product being sticky on hands...? Yeah, you're touching it that much? Try gloves. Some of us never had any balled-up fibers and Silca have already acknowledged that and made changes to their process to avoid it. And it can be injected through the valve with the replenisher, just not on the initial setup.

Regular Stan's has failed to seal so many holes in the past for me. And strangely, that's what I want a sealant to do. Seal holes. But somehow that's not a failed product because I can insert more of something that doesn't work very well through the valve?

From Silca's update, it does sound like they're responding to some of these issues anyway, but regardless, some of us really are having the positive experiences Silca also describes in that same post.

ghdana
Posts: 70
Joined: Mon Jul 05, 2021 4:43 pm

by ghdana

manystyles wrote:
Wed Jul 20, 2022 9:25 pm
ghdana wrote:I am just seeing the update, but this stuff has been a mess for me, I do have a bottle with too much carbon fiber.

It ate away the text on my Roval tubeless tape and eventually ruined the tape after a month. Put some Stans tape in and it ruined that tape in like 2 weeks on one tire. Now using some other tape and going to add some of the replenisher, since it's very hot and dry in Arizona.

Probably going to try MucOff if this tape fails or just go back to the Bontrager I'd been using with 0 issues before.
What do exactly mean when you say ruin the tape?

With mega threads like this, I take all these comments with a grain of salt, cuz a lot of could just be perception.

Josh already addressed that bottling / amount of carbon in the latest batch of sealant.

“FFS use orange”. I might, but the promise of Silca’s stuff initially sounded great. I’m keeping at eye o this thread and any updates on their product page too.


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At first it was just the text coming off, but by the time it was "ruined" it had somehow gotten "into" the tape and killed/ate away the adhesive. I wish I took a picture in hindsight. I thought maybe it was a chemical reaction caused by it being the same tape I'd used with my previous Bontrager sealant.

I did take a picture of the "hole" that somehow appeared in my Stans tape. I've never had tape fail on me before so it's a bit perplexing. It looks like something "scratched" at it, despite the fact I never rode on it flat. The tear that goes down the tape is from when I removed it and it started to split.

https://i.imgur.com/6XDfmFO.jpg
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TobinHatesYou
Posts: 12524
Joined: Mon Jul 24, 2017 12:02 pm

by TobinHatesYou

ghdana wrote:
Fri Jul 22, 2022 12:25 am

At first it was just the text coming off, but by the time it was "ruined" it had somehow gotten "into" the tape and killed/ate away the adhesive. I wish I took a picture in hindsight. I thought maybe it was a chemical reaction caused by it being the same tape I'd used with my previous Bontrager sealant.

I did take a picture of the "hole" that somehow appeared in my Stans tape. I've never had tape fail on me before so it's a bit perplexing. It looks like something "scratched" at it, despite the fact I never rode on it flat. The tear that goes down the tape is from when I removed it and it started to split.

https://i.imgur.com/6XDfmFO.jpg

What's more is that Stan's/Tesa 4289 is a regular poly tape, which Silca claims should be unaffected. Looking at your photo, the edges of the tape look fine so my initial assumption stands that it's physical rather than chemical. The tape is likely getting damaged at the spoke holes because of repeated media/balled-carbon collisions with the tape at the sharp edges of the drillings.

whataboutEee
Posts: 118
Joined: Fri Feb 19, 2021 8:55 pm

by whataboutEee

What's more is that Stan's/Tesa 4289 is a regular poly tape, which Silca claims should be unaffected. Looking at your photo, the edges of the tape look fine so my initial assumption stands that it's physical rather than chemical. The tape is likely getting damaged at the spoke holes because of repeated media/balled-carbon collisions with the tape at the sharp edges of the drillings.
[/quote]

So i had tape failure in my rear zipp, and tape damage in my front, as well as the carbon balls formed in a few days. The only problem with your theory is that the carbon balls all clumped together and stuck to my tire very quickly, they weren't freely floating around in the sealant.

legstrong
Posts: 9
Joined: Wed Feb 08, 2017 10:08 pm

by legstrong

Just had a similar failure like some people here. The sealant completely dried out just 1 month after replenisher top off. Fortunately, I was able to ride back home with 10 psi or less in my rear tire.

I'm switching to OS endurance.

Any idea how to remove this silca sealant layer on my tire? It completely covered my tire interior. It is hard to remove and break off easily.

scottydonald
Posts: 256
Joined: Sat Mar 20, 2021 5:06 pm
Location: Scotland now.

by scottydonald

legstrong wrote:
Mon Aug 01, 2022 9:03 pm
Just had a similar failure like some people here. The sealant completely dried out just 1 month after replenisher top off. Fortunately, I was able to ride back home with 10 psi or less in my rear tire.

I'm switching to OS endurance.

Any idea how to remove this silca sealant layer on my tire? It completely covered my tire interior. It is hard to remove and break off easily.
I wet mine with warm water, then scrubbed - took me 30 minutes a tyre to get them new ish! I hate Silca still a month later!

trailstar
Posts: 3
Joined: Thu Mar 15, 2012 11:18 am

by trailstar

Here is my rear wheel 5 weeks after install. Looks to be in great shape. From the latest batch.

Specialized Renegade 2.35 tire. T7 Compound.

Image

FlatlandClimber
Posts: 2491
Joined: Tue Mar 31, 2020 3:37 pm

by FlatlandClimber

Difficultly level "high" with the insert 😂.
I have abandoned those with Silca, just too messy!
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trailstar
Posts: 3
Joined: Thu Mar 15, 2012 11:18 am

by trailstar

FlatlandClimber wrote:Difficultly level "high" with the insert Image.
I have abandoned those with Silca, just too messy!
Indeed ImageImage

legstrong
Posts: 9
Joined: Wed Feb 08, 2017 10:08 pm

by legstrong

scottydonald wrote:
Tue Aug 02, 2022 8:24 am
legstrong wrote:
Mon Aug 01, 2022 9:03 pm
Just had a similar failure like some people here. The sealant completely dried out just 1 month after replenisher top off. Fortunately, I was able to ride back home with 10 psi or less in my rear tire.

I'm switching to OS endurance.

Any idea how to remove this silca sealant layer on my tire? It completely covered my tire interior. It is hard to remove and break off easily.
I wet mine with warm water, then scrubbed - took me 30 minutes a tyre to get them new ish! I hate Silca still a month later!
Thanks will try this method.

whataboutEee
Posts: 118
Joined: Fri Feb 19, 2021 8:55 pm

by whataboutEee

trailstar wrote:
Tue Aug 02, 2022 2:31 pm
Here is my rear wheel 5 weeks after install. Looks to be in great shape. From the latest batch.

Specialized Renegade 2.35 tire. T7 Compound.

Image
How is your rimtape looking? I am very reluctant to try the new batch silca sent me after looking at what it did to my rim tape.

trailstar
Posts: 3
Joined: Thu Mar 15, 2012 11:18 am

by trailstar

No issues with the rim tape that I could detect. I have Peaties rim tape on this set, which should be a candidate for the graphics to come off based on what I have read in this thread.

https://www.bike24.com/p2314308.html

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wheelsONfire
Posts: 6290
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Try TUFOs sealant as for now i will not swap it out!
Even tire pressure seems to remain very very stable.
I have one bottle per tire.
tufo-tubelessvatska-tubeless-ready-sealant.jpg
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