3M 540 Polyurethane Sealant 3M Powerline Adhesive
Excellent cosmetic sealer, paintable. Smoke and flame rated with a 90 minute skin time.
Excellent cosmetic sealer
Paintable
Smoke and flame rated
90-minute skin time
3m 540是一款密封胶水，潮湿条件下快速固化，能密封或粘接多种塑料，金属，木材和其它材料。有弹性，能适应不同膨胀系数的材料之间造成的扭曲。拉伸强度250psi.固体含量90%，分为黑色和灰色两种颜色，固化时间24小时，胶水呈膏状。工作温度范围-40度-90度.
3M540白色/灰色，3M540密封胶
