RS Clare Valve Lubricant 701 18kg D0905/00/0018KValve sealant 701 is specially formulated heavy duty valve sealant. In full scale valve testing, it has been proven to seal a severely leaking valve. Valve Sealant 701 is fully resistant to all types of produced hydrocarbons and also to high levels of H2S and CO2. Valve Sealant 701s physical texture and high metal adhesion promotes extended cavity retention. Valve Sealant 701 also has enhanced lubricating properties to protect the sealing surfaces