Isocyanates easily react with water to form brittle urea-containing materials. When the sprayed surface cannot be dew or frost, when the air humidity is too high, dehumidify it, otherwise it will affect the adhesion between the foam and the object, and it will easily fall off. Applications in polyurethane foaming machines
: aerospace, electronics, medical, safety cabinet sealing, automotive water tank sealing rings, soft foam, rigid foam, high rebound, slow rebound, elastomers, shoe materials, construction materials, wire, Wooden furniture, foam products, craft photo frames, paintings, toys, padding, thermal insulation materials, sports equipment, automobiles, motorcycle seat cushions, bicycle seats, seat auditoriums, office chairs, vacuum molded foam, self-skinning (), various A variety of special-shaped products, and industrial electrical cabinets, distribution boxes sealed foam sealing, sealing, polyurethane () products on-site molding products. manufacturing.
Polyurethane insulation-related companies are rapidly increasing, and new products and technologies are emerging. External wall insulation is difficult because different regions have different requirements. Temperature, humidity, wind, rain, frost, and snow are in the test wall; different materials with different thermal conductivity, material and material fusion, etc. need to be repeated. Between considerations; any element that is not thoughtful will cause the exterior wall insulation to fail. For many new products and technologies, Zhou's attitude is very strict: Polyurethane foaming machines are theoretically and practically recommended. Some business representatives also have such concerns. Some of the old experience of commercial production "cheap and cheap, good quality and cheap" reminds the construction unit to choose between quality and price. The polyurethane market itself and industry self-regulation need to be further strengthened.