Swellable bi-component polyurethane Sealant, is polyurethane based elastic sealant for vertical and horizontal expansion joints. which effectively seals joints that are subject to structural or thermal movements as well as non-moving joints with 2020% expansion rate. Against infiltration of water and dirt. Available in no sag and pouring grades for use in vertical or horizontal joints.
Pu sealant caulking gun grade provides a durable elastomeric, weather-tight seal for caulking joints in commercial and industrial projects. It is particularly effective where exposure to solvents or chemicals are anticipated.
--Sealing of expansion and contraction joints in most structures, interior and exterior.
--Sealing of glazed units, curtain walling systems and similar structures where thermal movement can be high and large variations in wind pressure are possible.
--In difficult situations such as sewage farms, reservoirs, swimming pools, fountains, cooling towers, fuel and chemical storage tanks, wastewater treatment and petrochemical plants.where non biodegradation of sealant is very important. --Bridge decks and associated abutments.
--Highly elastomeric-easily accommodates continuous and pronounced cyclic movements. --Very good chemical and temperature resistance. --Exhibits excellent adhesion to concrete. --High resistance to aging influences, physical damages and climate extremes. --Very good resistance to fuel, dilute acids and dilute alkalis.
one component, easily to application
mainly polyurethane, also has curing agent
Surface drying time ,h
Probationary period /h
Elastic recovery rate %
Mass loss rate /%
Specified value 0.1
caulking sealing of deformation joints such as concrete expansion joints and settlement joints in projects such as construction , municipal, subway, tunnel, airport runway, highway and bridge.