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.
1 Mastic is a non-cementitious material that exhibits some pros and cons compared to thinset. 2  The advantage of mastic compared to thinset is the setting time and âstickinessâ which helps make tile installation much quicker and easier.