- Ready-to-Use Product Type:Elastomeric Sealant
- Chemical Family:Polysulfides
Koster Joint Sealant FS-V Black is a flexible stiff/creamy polysulphide based joint sealant. When fully cured, Koster Joint Sealant FS-V is a rubber-elastic sealant with a high mechanical load capacity, good resistance to water, sea water, salt solutions, benzenes and mineral oils; it resists roots, does not rot and has very good retraction capabilities.