The full name of polyurethane foam sealant is one component polyurethane foam sealant, commonly known as foaming agent, foam adhesive PU Joint sealant, English PU FOAM , is the cross combination of aerosol technology and polyurethane foam technology.

Polyurethane foam adhesive is a special polyurethane product that can be filled with polyurethane prepolymer, foaming agent, catalyst and other components in a pressure resistant aerosol tank. When the material is sprayed from the aerosol tank, the foamed polyurethane material will rapidly expand and solidify with the air or the moisture in the contacted matrix to form foam. The cured foam has various effects such as caulking, bonding, sealing, heat insulation, sound absorption, etc , It is an environment-friendly, energy-saving and convenient building material ,   It can be used for sealing and plugging, filling void and patching, fixing and bonding , Thermal insulation and sound insulation , It is especially suitable for sealing, plugging and waterproofing between plastic steel or aluminum alloy doors and windows and walls.

Generally, the surface dry time is ten About minutes (room temperature twenty The total dry time varies with the ambient temperature and humidity. Generally, the total dry time in summer is about 4~6 Hours, and about zero in winter twenty-four Hours or more to fully dry. Under normal conditions of use (and under the condition that its surface is covered), its service life is estimated to be no less than ten years -10 ℃～ eighty The cured foam keeps good elasticity and cohesion within the temperature range of ℃. The cured foam has the functions of caulking, bonding and sealing. In addition, flame-retardant polyurethane foaming agent can achieve B and C Class I flame retardant.