Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC

Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC: Refurbished Iwo Jima Monument unveiled in March 2016.
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC: Interior of concrete/plaster sculpture demonstrates the condition of interior steel structure which was repaired, replaced and treated with anti-corrosion products.  Segments of the plaster sculpture were then
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC: Surface conditon after attempts to chemically strip epoxy finish.  Note much of the epoxy was well adhered and was not removed by chemical means.  Additional abrasive blasting was required to remove as much of the epoxy as possible, without damaging the cement/plaster sculpture's surface.
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC: Hand application of Concretal Pigmented Mineral Stain in metallic bronze and aging patina to emulate the appearance of aged bronze.  
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC
Iwo Jima Monument, Marine Corps Recruit Depot, Parris Island, SC
Pictured above: Refurbished Iwo Jima Monument unveiled in March 2016.

About This Project

A 1/3 scale cement/plaster replica of the bronze monument at Arlington Cemetery, this monument sits on the Peatross Parade Deck at the USMC Recruit Depot at Parris Island, SC.  It was first dedicated in 1952 and has had several restorations, including a 1964 full repaint with an epoxy finish to protect the plaster from water and the elements.  Years of moisture being trapped within the hollow cavities of the concrete/plaster shell caused corrosion and decay of the steel supports within, which was in turn causing structural damage to the monument.  A complete restoration was undertaken in 2016 to remove the epoxy coating and to replace and repair damaged steel infrastructure as well as repair the concrete/plaster surfaces.  A breathable, water repellent and weather resistant finish, with an aged bronze appearance was chosen to replace the epoxy finish.   
Challenges The surface was pitted and damaged from years of moisture penetration and weather.  The existing epoxy finish was meticulously removed, but in some cases not all epoxy was removed for concerns about damaging the surface.  A water repellent finish was desired and the finish required superior bonding characteristics on both the bare cement/plaster and areas where epoxy could not be removed.  There are also many areas of the sculpture that are horizontal which capture and retain rain water, so thorough water repellent treatment was required across the entire surface and base.
Solutions Silan 100 Water Repellency was chosen for it's penetrating and moisture vapor permeable characteristics.  This repellency was applied directly to the repaired surfaces, then a full coat of Soldalit All-Surface Exterior Texture Base as applied within the critical recoat window.  The texture base was needed to fill-in pits and voids in the surface and to help visually conceal patches and rougher areas of the monument.  A finish coat of Soldalit All-Surface Exterior Mineral Silicate Finish was applied in a deep green color.  Finally multiple coats of Concretal Pigmented Mineral Stain were applied in metallic bronze and patina colors to create the appearance of aged bronze, while maintaining the vapor permeable finish.  The entire finish is also extremely weather resistant.
Architect Conservation Specialist:  Terra Mare Conservation LLC, Paul Mardikian, Senior Conservator and Co-Founder

http://www.linkedin.com/company/terra-mare-conservation-llc

Contractor UHP Projects, Inc.  http://www.uhpprojects.com/
Applicator
Type of Project Schools/Institutional
Customer United States Marine Corps
Location Parris Island, South Carolina (United States)
Regional Info