SPEC MIX® Masonry Mortar, Type S is a dry, preblended mortar mix containing Portland cement, hydrated lime and dried masonry sand formulated for superior bond, water retention and board life.
SPEC MIX Masonry Mortars meet:
- ASTM C270 Mortar for Unit Masonry
- ASTM C1714 Preblended Dry Mortar Mix for Unit Masonry
- IBC
- CBC
Approvals include:
- DSA/OSHPD (DSA/IR A-5 Compliant)
- City of Los Angeles Research Report No. 24968
- California Department of Transportation
Available in various packaging sizes:
- 60 lb
- 50 lb Stone Veneer Mortar
- 94 lb
- 3000 lb
- Bulk
WARNING: This product can expose you to chemicals including Chromium (hexavalent compounds), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.







