Abstract: An adhesive and a method for removing the adhesive are provided. The adhesive includes component (A) and component (B). Component (A) is a combination of a first acrylate resin and a first compound, a second acrylate resin, a combination of the first acrylate resin and the second acrylate resin, a combination of the second acrylate resin and the first compound, or a combination of the first acrylate resin, the second acrylate resin and the first compound. The first acrylate resin has an iodine value from 0 to 3. The second acrylate resin has an acrylate group, or methacrylate group. Component (B) is a near infrared sensitizer. The first compound has at least two reactive functional groups, wherein the reactive functional groups are acrylate group, methacrylate group, or a combination thereof.

Abstract: A pressure gauge has a base, a control knob, a pressure detector, a display and a cover. The base has a chamber, an inlet tube, an outlet tube and a controlling tube. The controlling tube has an inner end protruding into the chamber of the base and communicating with the inlet tube. The control knob is mounted rotatably on the controlling tube to open or close a communication between the inner end of the controlling tube and the inlet tube. The pressure detector is mounted in the chamber to detect air pressure in the base. The display is mounted in the chamber of the base and is connected electrically to the pressure detector to display the air pressure detected by the pressure detector. The cover is attached detachably on the base to close the chamber and has a window from which the display is exposed.