GENERAL RUBBER LINING PRINCIPLES
METAL PREREQUISITES
Metal to be lined should meet the requirements as stated in section 8 and section 12 “Blasting and Cementing Procedures.” The surface of the metal needs to be free of pits and crevices. Pits and crevices will trap air which will expand during the cure, causing the lining to form a blister known as a “blow”. The primer and any intermediate can be applied ahead of time. The tack cement should be applied ahead of the application of the lining sheets so that, 1) the cement is dry and tacky, and 2) the cement is applied just far enough so that the last sheet of rubber is applied at the end of the shift. In this way, the tack cement won’t become so dry that the rubber won’t stick when ready