---
product_id: 534412249
title: "Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant"
brand: "silca"
price: "€ 27.79"
currency: EUR
in_stock: false
reviews_count: 9
url: https://www.desertcart.ie/products/534412249-silca-ultimate-tubeless-tyre-sealant-with-fiberfoam-946-ml-effective
store_origin: IE
region: Ireland
---

# Recycled carbon fiber formula Works down to -12°C Seals holes up to 7.5mm Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant

**Brand:** silca
**Price:** € 27.79
**Availability:** ❌ Out of Stock

## Summary

> 🚴‍♂️ Seal the deal, conquer every trail—no flat can hold you back!

## Quick Answers

- **What is this?** Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant by silca
- **How much does it cost?** € 27.79 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/534412249-silca-ultimate-tubeless-tyre-sealant-with-fiberfoam-946-ml-effective)

## Best For

- silca enthusiasts

## Why This Product

- Trusted silca brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Eco-Driven Durability:** Carbon fibers reclaimed from race cars and bikes for a sustainable, long-lasting seal.
- • **Half-Year Peace of Mind:** Up to 6 months of reliable protection—ride more, worry less.
- • **Puncture-Proof Powerhouse:** Seals large holes up to 7.5mm—because flats are so last season.
- • **Effortless Setup & Maintenance:** Pour in, ride on; just top up every 90-120 days to stay ahead of flats.
- • **Unstoppable Cold-Weather Shield:** Keeps your ride sealed and safe even at -12°C, no winter pause needed.

## Overview

Silca Ultimate Tubeless Tyre Sealant with FiberFoam technology uses recycled carbon fibers to seal punctures up to 7.5mm and performs reliably down to -12°C. Its advanced formula lasts up to 6 months, providing strong, eco-friendly tubeless tyre protection for year-round cycling.

## Description

SILCA Ultimate Tubeless Tyre Sealant offers cutting-edge FiberFoam technology that uses recycled carbon fibers to deliver superior sealing performance for tubeless setups. This advanced formula seals punctures up to 7.5mm, outperforming other tyre sealants on the market. With the ability to function effectively in temperatures as low as -12 degrees Celcius, this sealant is perfect for year-round riders seeking reliable protection. The FiberFoam technology in our tubeless sealant evenly disperses carbon fibers through a foaming latex formula, creating a strong, lasting seal that prevents air loss, even under high pressure. Tested to be 25 percent more effective at sealing large punctures than conventional technologies, our formula ensures a robust repair on the trail or road. Additionally, our Silca sealant includes antifreeze agents to maintain performance in low temperatures, sealing 6mm holes at -7 degrees Celsius. To ensure longevity, the sealant lasts up to 6 months, with replenishment recommended every 90-120 days for best results. The replenisher is especially useful for sealing porous tires or rejuvenating the existing silca bike tyre sealant sealant. Unlike other products SILCA's formulation utilises sustainable carbon fibers reclaimed from recycled sources like bicycles and race cars. This results in a sealant that is not only effective but eco-friendly . For optimal results, avoid CO2 and talc powder during installation to prevent sealant hardening.

Review: Best sealant on the market - Excellent sealant - application is a bit flawed as the new version can be injected, but this stuff definitely works, saved me from a lot of flats on our awful UK roads!
Review: Patches holes - Works a treat so far, sealed a couple of holes and stopped a painful stop.

## Features

- May cause allergy or asthma symptoms or breathing difficulties if inhaled.
- May cause an allergic skin reaction.
- Ultimate Tubeless Protection: FiberFoam technology seals punctures up to 7.5mm without pressure loss, offering superior tubeless tyre sealant performance.
- Effective in Cold Weather: Operates down to -12 degrees Celsius, providing reliable tyre sealant in all conditions, even in freezing conditions for year-round biking.
- Long-Lasting Formula: Offers up to 6 months of protection, keeping tyres sealed and puncture-free on every ride with our advanced Silca sealant formula.
- Carbon Fiber Reinforcement: Utilises carbon fibers reclaimed from recycled sources that form a durable seal over punctures, enhancing the strength of your tyre sealant for long-term use.
- Easy Installation: Pour directly into the tyre during setup; use replenisher every 90-120 days to maintain optimal performance. Not compatible with tubeless tyre sealant injectors.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09VPZR5CY |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 122,510 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) 433 in Bike Tyre Repair Kits |
| Colour | Cream |
| Customer Reviews | 4.2 4.2 out of 5 stars (105) |
| Date First Available | 8 Jun. 2023 |
| Item Package Quantity | 1 |
| Item Weight | 296 g |
| Item model number | SI/160914 |
| Manufacturer | Silca |
| Material | Polyurethane |
| Part number | SI/160914 |
| Product Dimensions | 27.94 x 15.24 x 10.16 cm; 296 g |
| Size | 32 ounce |
| Style | Tubeless sealant with Carbon chop |

## Product Details

- **Brand:** SILCA
- **Item dimensions L x W x H:** 27.9 x 15.2 x 10.2 centimetres
- **Item weight:** 296 Grams
- **Material:** Polyurethane
- **Style:** Tubeless sealant with Carbon chop

## Images

![Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant - Image 1](https://m.media-amazon.com/images/I/31EWU3JQnPL.jpg)
![Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant - Image 2](https://m.media-amazon.com/images/I/31FioWS4xXL.jpg)
![Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant - Image 3](https://m.media-amazon.com/images/I/31tLHtohaQL.jpg)
![Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant - Image 4](https://m.media-amazon.com/images/I/41VA0CEWEhL.jpg)
![Silca Ultimate Tubeless Tyre Sealant with FiberFoam 946 ml | Effective Down to -12°C | Seals Up to 7 mm Holes | Strong, Long-Lasting | Bike Tyre Sealant - Image 5](https://m.media-amazon.com/images/I/41VRbDme-SL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best sealant on the market
*by C***K on 6 June 2025*

Excellent sealant - application is a bit flawed as the new version can be injected, but this stuff definitely works, saved me from a lot of flats on our awful UK roads!

### ⭐⭐⭐⭐⭐ Patches holes
*by R***Y on 7 December 2024*

Works a treat so far, sealed a couple of holes and stopped a painful stop.

### ⭐⭐⭐ Excellent but expensive
*by S***A on 30 December 2024*

American import I guess costs more but no question about the quality of Silca's products.

## Frequently Bought Together

- SILCA Ultimate Tubeless
- BWSHLF Tubeless Presta Valve Stem 40/44/55/60/65/80/100 mm, Super Light Alloy Presta Valve Stem Kit with Valve Core Remover Tool and Valve Stem Caps - Multiple Color and Size Options(Pair)
- Continental Grand Prix 5000 S TR 700x28 Black - Tubeless Ready - Pack of 2 Tires

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-03-07*