Silca Ultimate Tubeless Sealant
Moderator: robbosmans
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They really need to get this sorted...
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
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wickedstealthy wrote: ↑Wed Jun 15, 2022 9:05 amThx for the honest reply. Im seriously intrested in tubeless as I see some advantages. But for me basically a tubeless tire should only flat once every 3 yearsMikeD wrote: ↑Tue Jun 14, 2022 11:39 pmAfter years of using tubeless, my opinion is if you aren't getting many flats it isn't worth it.wickedstealthy wrote:Mmmm I'm almost jumping the tubeless bandwagon.
If I read how much faff it is finding the good combination tire-sealant I wonder why I should ride tubeless. Bought the silca stuff but will likely return it. Typically only have one or 2 leaks in a season of 12km and simple replace my tpu tube and fix it home.
That is for me just the point of using sealant giving your the option to run fast tires and still dont have the major risk flatting.
My major frustration is that an end user needs to find out what tire and what sealant work ok.
I haven't had a flat in 3+ years - I've been through 3 or 4 GP5000TL tires. Using Orange Seal.
I know I've been lucky. I've been with other riders who had a total tubeless failure on the side of the road. Those riders though probably weren't topping up sealant, and one particular rider didn't even have the stuff to repair his flat.
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A very good argument Belgian roads are also not known for their quality. Also one of the reasons I was eyeing on it.whataboutEee wrote: ↑Wed Jun 15, 2022 10:36 pmAs someone who just went tubeless, I can say I am never going back. The ride quality is just too good. I usually only punctured once a year or so with tubes, so the puncture protection wasn't a big deal for me. Our roads are terrible, so the low pressure makes a meaningful difference, but if I lived somewhere with awesome roads then I can see the argument going towards tubes.wickedstealthy wrote: ↑Tue Jun 14, 2022 11:01 pmMmmm I'm almost jumping the tubeless bandwagon.
If I read how much faff it is finding the good combination tire-sealant I wonder why I should ride tubeless. Bought the silca stuff but will likely return it. Typically only have one or 2 leaks in a season of 12km and simple replace my tpu tube and fix it home.
Regular maintenance is not really a big deal as I wax my chains once a week for example and the advantage is so obvious that I will never go back to oils. I'm running now already 20k and no wear.
So for tubeless I would have expected that all this mix and match would be by this time cleared.
It's a bit the same with the Ertro std now where actually customers are used as test case.
Maybe I give it a try on my Canyon training bike but I will use something else then Silca reading all this till the cleared their stuff. Need to send the stuff back today
I also strayed from Orange to try this out. I didn’t have a puncture but changed tires after a few months. Completely dried inside. It typically takes Orange about twice the time to dry out using the same amount. So could be more prone to evaporating than Orange. I did end up with balls of sealant/carbon fiber material.bobones wrote:Perhaps manufacturing is just not able to (consistently) produce the sealant Silca designed. It's the first sealant to come with a separate "replenisher" fluid. Was that seen to be necessary because they knew the original formula was prone to drying out, or as I belived, to make it easier to top up through the valve?
The product I have does not live up to the claims on these counts:
1/ it doesn't last 90-120 days: mine had dried up in 2 weeks
2/ it doesn't exist as a foam in which carbon filaments are suspended
3/ carbon filaments do not help to plug punctures: they just clump into little balls that roll about inside your tyre.
It's a massive fail for me. I have had one puncture in the time I have been using it and there was no liquid sealant in the tyre to do anything useful, and in a little over 2 months, I have just about ran out of replenisher and I'm 3/4 of the way down on a 24 fl.oz bottle of sealant.
The lesson for me is never to stray away from Orange Seal. The only question is whether I can be bothered trying to get a refund on the Silca stuff I bought.
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Well, then the product would require a complete overhaul. I am currently just hoping that this is a bad batch. I have not had an issue with the sealant drying up quickly, and most of the carbon strings have stayed relatively soft from my first batch.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Where did you get this other batch?FlatlandClimber wrote: ↑Thu Jun 16, 2022 3:55 pmWell, then the product would require a complete overhaul. I am currently just hoping that this is a bad batch. I have not had an issue with the sealant drying up quickly, and most of the carbon strings have stayed relatively soft from my first batch.
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This is the best free advertising for Orange Seal.
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There is no fact to my assumption of this being separate batches, just an assumption. I have placed 3 orders, early on (the moment it was released), 3 weeks later, and just now. The first was great, the one later was trash, the new one is great.bobones wrote: ↑Thu Jun 16, 2022 4:08 pmWhere did you get this other batch?FlatlandClimber wrote: ↑Thu Jun 16, 2022 3:55 pmWell, then the product would require a complete overhaul. I am currently just hoping that this is a bad batch. I have not had an issue with the sealant drying up quickly, and most of the carbon strings have stayed relatively soft from my first batch.
Cervelo P5 Disc (2021) 9.1kg
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
Factor Ostro Gravel (2023) 8.0kg
S-Works SL8 (2023) 6.3kg
*weights are race ready, size 58/L.
Sold: Venge, S5 Disc, Roubaix Team, Open WI.DE, Émonda, Shiv TT, Crux, Aethos, SL7
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- Joined: Fri Feb 19, 2021 8:55 pm
Had to replace my rear tire today and there was still plenty of liquid left in it (pirelli p zero race tlr, brand new tire when I mounted it). However, all the carbon was in one big clump stuck to the tire. The best I can tell it wasn't a puncture. Now I'm wondering how effective it is long term with the added replenisher. If the carbon is basically non-functional after a few weeks it really seems like it might not be worth the hassle of not being able to inject it into the valve.
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How had the tire been inflated? Air compressor? I had been exclusively using an air compressor to inflate my tires. Introducing moist acidic air into the tire - because of moisture in the air compressor tank - and lowering the pH of the sealant was one of the reasons given by Silca when i emailed them with photos of lumps of pellets. The other given reasons were the sealant having too much carbon fiber or the sealant losing some of its carrier. The sealant having too much carbon fiber does not make sense to me. If pH of the sealant being lowered was the reason, then sensitivity of the sealant to changes in pH worries me.whataboutEee wrote: ↑Fri Jun 17, 2022 6:02 pmHad to replace my rear tire today and there was still plenty of liquid left in it (pirelli p zero race tlr, brand new tire when I mounted it). However, all the carbon was in one big clump stuck to the tire. The best I can tell it wasn't a puncture. Now I'm wondering how effective it is long term with the added replenisher. If the carbon is basically non-functional after a few weeks it really seems like it might not be worth the hassle of not being able to inject it into the valve.
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Standard track pump. Never used CO2 or compressor for inflation or daily use.cat4forlife wrote: ↑Fri Jun 17, 2022 6:17 pmHow had the tire been inflated? Air compressor? I had been exclusively using an air compressor to inflate my tires. Introducing moist acidic air into the tire - because of moisture in the air compressor tank - and lowering the pH of the sealant was one of the reasons given by Silca when i emailed them with photos of lumps of pellets. The other given reasons were the sealant having too much carbon fiber or the sealant losing some of its carrier. The sealant having too much carbon fiber does not make sense to me. If pH of the sealant being lowered was the reason, then sensitivity of the sealant to changes in pH worries me.whataboutEee wrote: ↑Fri Jun 17, 2022 6:02 pmHad to replace my rear tire today and there was still plenty of liquid left in it (pirelli p zero race tlr, brand new tire when I mounted it). However, all the carbon was in one big clump stuck to the tire. The best I can tell it wasn't a puncture. Now I'm wondering how effective it is long term with the added replenisher. If the carbon is basically non-functional after a few weeks it really seems like it might not be worth the hassle of not being able to inject it into the valve.
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- Joined: Thu Jul 16, 2020 7:42 pm
Well, there goes that Silca explanation of lowering the sealant pH due to the introduction of acidic air via an air compressor.whataboutEee wrote: ↑Fri Jun 17, 2022 6:58 pmStandard track pump. Never used CO2 or compressor for inflation or daily use.cat4forlife wrote: ↑Fri Jun 17, 2022 6:17 pmHow had the tire been inflated? Air compressor? I had been exclusively using an air compressor to inflate my tires. Introducing moist acidic air into the tire - because of moisture in the air compressor tank - and lowering the pH of the sealant was one of the reasons given by Silca when i emailed them with photos of lumps of pellets. The other given reasons were the sealant having too much carbon fiber or the sealant losing some of its carrier. The sealant having too much carbon fiber does not make sense to me. If pH of the sealant being lowered was the reason, then sensitivity of the sealant to changes in pH worries me.whataboutEee wrote: ↑Fri Jun 17, 2022 6:02 pmHad to replace my rear tire today and there was still plenty of liquid left in it (pirelli p zero race tlr, brand new tire when I mounted it). However, all the carbon was in one big clump stuck to the tire. The best I can tell it wasn't a puncture. Now I'm wondering how effective it is long term with the added replenisher. If the carbon is basically non-functional after a few weeks it really seems like it might not be worth the hassle of not being able to inject it into the valve.
Visit starbike.com Online Retailer for HighEnd cycling components
Great Prices ✓ Broad Selection ✓ Worldwide Delivery ✓
www.starbike.com