It is our lowest strength portland-lime mortar for repointing and rebuilding masonry.
Product Description
Midcentury Type O mortar complies with ASTM C270 “Standard Specification for Mortar for Unit Masonry.” This preblended property-mix mortar provides consistent performance and appearance while also eliminating time-consuming and inconsistent onsite matching and field blending.
- 51 exclusive Centurywerks colors
- Choose from standard fine, mason, and coarse sands
- Fully custom paste and/or aggregate matching
- Extensive in-house color library for fast track matching
- Manufactured in Chicago from domestically sourced ingredients
- Complies with ASTM C1714 “Standard Specification for Preblended Dry Mortar Mix for Unit Masonry”
- We also offer complete custom matching and blending services
Midcentury Type O Mortar in Use
Real-world uses of Midcentury Type O Mortar in masonry, plaster, and repair work.
Need Assistance?
Contact us at 773-598-4300 for more information and assistance.
Why Choose CenturyWerks?
Historically Accurate Materials
Precision-matched to historic structures for seamless restoration and durability.
Trusted by Restoration Experts
The go-to supplier for preservationists, architects, and contractors.
Engineered for Performance & Longevity
Designed to match, perform, and last in demanding restoration projects.
Over a Century of Expertise
A legacy of craftsmanship and material knowledge since the 1800s.