1 â¢ Print, sign and date the two-page Certification. Statement and mail it along with all requested. supporting documentation to the Medicare. contractor. 2  Note: 3  Do not mail the CMS-855 paper that can. be printed from Internet-based PECOS.  Retain this information for your records.
Definition of mastic. 1 : an aromatic resinous exudate from mastic trees used chiefly in varnishes.
Mastic Adhesives and Asbestos. Mastic is a heavy duty adhesive that was primarily made out of asbestos, a naturally occurring mineral. It was an especially strong glue that could not only hold most any surfaces together, but was also able to survive during intense heat or fire. This was because asbestos is innately fire retardant.