FOUNDATION EXPANSION JOINT DETAIL STEP 1 : INTERFLEX BACKER ROD (Fitil) STEP 2 : INTERPRIMER EPO FLEX STEP 3 : INTERFLEX JOINT 2K Related Product Two Component, Polysulphıde Based, Hıgh Resıstance, Elastomerıc Expansıon Joınt Sealant Two Component, Epoxy Based Prımer For Expansıon Joınts Sealants