3M 540 windshield polyurethane adhesive sealant
3M 540 glue is the world famous chemical brand 3M company introduced a sealant, its main feature is easy to meet moisture curing, suitable for metal wood, wet conditions, fast curing, can seal or bond a variety of plastic, metal, wood and Other materials. Elastic, can adapt to different expansion coefficient between the material caused by the distortion. Tensile strength 250PSI. Solid content of 90%, divided into black and gray two colors, curing time 24 hours, glue was creamy. Operating temperature range -40degrees -90 degrees