Quick Summary
SILCA Ultimate Tubeless Tire Sealant is a 500 ml tubeless bike sealant for filling punctures as they occur. The sealant is described as injectable through valve cores or pourable directly into the tyre during installation, and it is stated to stay liquid for 6+ months.
The product is presented for use with tubeless tyres and valve cores, with puncture sealing stated up to 7.5 mm. If those details matter to your setup, check the tyre system, application method and pack size before choosing an offer.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | SILCA, which identifies the product range. |
| Product type | Tubeless tyre sealant for bicycle tyres. |
| Pack size | 500 ml, so the container size is clear before purchase. |
| Puncture sealing | Stated to proactively seal punctures up to 7.5 mm. |
| Application method | Described as injectable through valve cores or pourable directly into the tyre. |
| Liquid retention | Stated to stay liquid for 6+ months. |
| Temperature note | Described as working in temperatures as low as -15 °C. |
What to Compare Before Buying
- Tyre system: This sealant is described for tubeless tyres, so check that your wheels and tyres use a tubeless setup.
- Application method: It can be injected through valve cores or poured in during installation, so compare that with how you plan to fit it.
- Pack size: The bottle contains 500 ml, which matters if you are topping up an existing setup or fitting multiple tyres.
- Stated puncture size: The product is described as sealing punctures up to 7.5 mm, so compare that with the level of protection you want.
- Storage and topping up: It is stated to stay liquid for 6+ months, which is relevant if you want longer intervals between checks.
Before You Decide
Confirm that you need a 500 ml tubeless sealant and that your tyre setup accepts this type of product. Check whether you want to inject it through the valve core or add it during installation, and make sure the stated puncture size and liquid-retention period match your expectations.
Common Buyer Questions
Can it be added through the valve?
Yes. It is described as injectable through valve cores.
Is it only for one type of bike?
It is described for mountain, gravel and road bike use, so it is positioned for several bicycle types.
Does it need to be used straight away?
No. It is stated to stay liquid for 6+ months, which supports longer intervals between top-ups.






