BONDERITE C-AK 6305 LH Known as Turco 6305 LH Cleaner Multi-purpose concentrated liquid cleaning and degreasing cleaner composed of silicate, salts of organic acids and surfactants. BONDERITE® C-AK 6305 LH is a colorless, clear, multi-purpose concentrated liquid cleaning and degreasing cleaner composed of silicate, salts of organic acids and surfactants. It can be used in various applications and substrates due to its strong cleaning ability.