Hydro-Seal is formulated specifically for water-based ballast-filled tyres. Tyre sealants Formulated for use in air-filled tyres will be separate when mixed with water, thus making these sealants ineffective. Furthermore, tyre sealants for pneumatic tyres do not contain enough fibres to be truly effective when diluted with water. Hydro-Seal is designed to overcome these problems. Hydro-seal tyre sealant can perform an instant puncture repair up to 13mm in diameter in the tread area when installed at 1 part tyre sealant per 10 parts of liquid-based ballast. Hydro-seal will disperse uniformly through the liquid ballast and eliminate most flat tyre costs and downtime when used correctly. This water-washable tyre sealant is compatible with anti-freeze, can be used in sub-zero temperatures, is suitable for both tubed and tubeless tyres, and will last the tyre's life. Hydro-Seal tyre sealant is supplied in 20-litre pails and is sold with a specially engineered installation pump for ease of u