PU foam is a kind of one-part polyurethane sealant with high expansion rate and well adhesion with matrix materials. The best temperature for application is 18¡æ-25¡æ and best relative humidity is 55%. The main properties of this product is listed below: 1.Well heat insulating, heat perservation properties and abilities of waterproof and stopping up holes as well as good sound proof and electrical insulation property. 2.Expansion rate high up to 60 times and excellent filling function. 3.No cracking after curing of PU foam with good sealing. 4.Good adhesion with surface of aluminum alloy, concrete, coatings, woods, wall and plastic etc. 5. No feron, poisons and pollution, it'

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