Code of Massachusetts Regulations
780 CMR - STATE BOARD OF BUILDING REGULATIONS AND STANDARDS
Chapter 25 - Gypsum Board and Plaster
Section 2512 - EXTERIOR PLASTER
Subsection 2512.6 - Curing and interval
Universal Citation: 780 CMR MA Code of Regs 2512.6
Current through Register 1531, September 27, 2024
First and second coats of cement plaster shall be applied and moist cured as set forth in ASTM C 926 and Table 2512.6.
TABLE 2512.6 CEMENT PLASTERSa
| COAT | MINIMUM PERIOD MOIST CURING | MINIMUM INTERVAL BETWEEN COATS |
| First | 48 hoursa | 48 hoursb |
| Second | 48 hours | 7 daysc |
| Finish | - | Note c |
| a. The first two coats shall be as required for the
first coats of exterior plaster, except that the moist-curing time period
between the first and second coats shall not be less than 24 hours. Moist
curing shall not be required where job and weather conditions are favorable to
the retention of moisture in the cement plaster for the required time period.
b. Twenty-four-hour minimum interval between coats of interior cement plaster. For alternate method of application, see Section 2512.8. c. Finish coat plaster is permitted to be applied to interior cement plaster base coats after a 48-hour period. |
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