Case Histories

Lead Abatement

Verizon Wireless Facility - Kansas City, MO

Challenge:

The cement deck surface above a hung ceiling in a Verizon Wireless facility in Kansas City, MO had LBP in a badly peeling condition. Abatement by removal and replacement had a significant costs associated with it ($5 to $10/sq. ft.) plus concerns for overall project downtime and impacts on other project trade schedules, so another option was sought.

Solution:

Accordingly, a decision was made to encase the walls using SE-110 Penetrating-Stabilizer (primer) and over-coat with SE-130 Protective-Skin (Satin topcoat). First the quite loose old lead containing paint was knocked off, followed by the further surface stabilization step of spray applying the SE-110 primer. After allowing time to dry the SE-130 topcoat was then spray applied. Abatement along with a freshly painted surface was thus achieved for about $0.60/sq. ft. materials costs, plus labor. More importantly, the encasement process was achieved safely and in less than half the time removal and replacement would have required, keeping the other trades and aspects of this project on schedule. An identical project of slightly smaller scale was also completed in the St. Louis, MO sister facility to this plant one week earlier.

This environmentally-friendly encasement system project to abate the LBP was specified by WB Engineering of Woburn, MA, and was safely installed by Hartman Walsh Painting Contractors, Inc. of St. Louis, MO, a Certified Applicator of Safe Encasement Systems.

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Tugboat Edna G. - Two Harbors, MN

Challenge:

Named for the daughter of a former Duluth and Iron Range Railway Co. president, the tugboat Edna G. served for two years in Norfolk, VA during WW1. Then it moved to the Two Harbors, MN area where it served the purpose of guiding freighters and ore carriers into and away from the docks of Agate Bay. The last steam-operated tug on the Great Lakes, she was granted a place on the National Register of Historic Places in 1975. She was retired in 1981, overhauled in 1993-94 at Superior, WI Frazer Shipyards. A fixture in Two Harbors for 107 years, she has been the primary tourist attraction for the area. But this came to an end in 2001 as the condition of the lead-based paint (LBP) resulted in the tug being closed to the public. Because of its importance to the community, a major emphasis was place on abating this hazard and putting the tug back into service as a museum. But the cost to remove the LBP and re-paint the tug was estimated to be as high as $100K with the usual concerns as to how this would affect the surfaces of this registered historic site.

Solution:

Encasement was chosen, which requires the removal of only the very loose, flaking paint (done under wet conditions so no hazardous dust is created), removal of soluble salts from metal surfaces, application of a surface stabilizing primer (corrosion-inhibited for metal surfaces) to yield a tacky surface for the topcoat to adhere to, and then the application of the topcoat tinted to match the historic color scheme. The entire project was completed by encasement for less than one third of the cost of removing all of the old paint and re-painting.

Diamond Vogel Paints performed the tinting to achieve the desired color matching, while Lakehead Painting did the surface preparation and applied this environmentally-friendly encasement system.

The Edna G. was once again opened to tourists in August, 2003.

 

 

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Church of the Redeemer - New Haven, CT

Challenge:

The mullions and trim on this brick church building were coating with aging, lead containing paint. Some of the paint is loose and flaking and there is another building that’s 12 feet away from one side of the church.

Solution:

The excessively loose paint was removed in an approved manner.The remaining paint was stabilized with SE-110 Penetrating-Stabilizer (primer) and SE-151 Architectural Sealant was used to weather seal around all doors and windows. SE-120 Protective-Skin was applied over all the surfaces, and then SE-170 High-Gloss coating was applied over all the surfaces.

Water Regulator House - Connecticut

Challenge:

The building had tests performed showing a LBP content of 131 mg/dl. We needed to lock down any of the loose paint on the walls and stabilize the paint for worker and drinking water safety.

Solution:

SE-110 and SE-120 were tinted to a turquoise color for this project. The main concern was to address the LBP within fully functional water treatment building which supplies million of gallons a day of water to several local towns. This work was done while the filter beds were still in use. The secondary concern was the application of a product within the regularly humid environment. Additionally 2 hoists were in place within the filter plant which needed to be kept fully operational in case of emergency (they were covered while the contractor spray applied the SES.)

Union Station - Denver, CO

Challenge:

An idle passenger tunnel was to be renovated for use in conjunction with the installation of new tracks for the Denver Rapid Transit System. The beams in the roof of the tunnel, over which the new rails will pass, were covered with loose, flaking Lead-Based Paint and a considerable amount of rust. Sandblasting followed by re-painting was rejected because of the costs associated with disturbing LBP.

Solution:

The solution chosen was encasement, where a surface-stabilizing primer, followed by an encapsulant top coat is employed. The first step consisted of removal of only the very loose, flaking paint by power washing. Bolt holes were repaired with a non-shrinking grout, following which the beams were brush washed with a solution of 4% Chlor*Rid Soluble Salt Remover in water. Corrosion-Inhibiting primer, SE-110-CI, was then spray applied over all of the exposed surfaces in one day, application rate was 10-12 wet mils. On the following day, pigmented SE-120 topcoat was spray applied to the same thickness. This provides a tough, long-lasting, flexible protective barrier that prevents against the release of LBP and provides protection against future corrosion, and will not crack, chip or peel. The use of encasement vs. removal saved over 50% of the total cost of abatement.

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Fort Baker - California

Challenge:

Encase, refurbish and protect exterior surfaces of buildings

Solution:

A SAFE Encasement System using SE-110 and SE-120 encased, refurbished, and now protects the buildings at Fort Baker, California.

1930's Home - Santa Barbara, CA

Challenge:

Restore aging home that had suffered repeated flooding, safely stabilize damaged surfaces containing loose and peeling Lead-Based Paint, and minimize disruptions to tenant.

Solution:

The property was restored and made Lead-SAFE with a cost-effective SAFE Encasement System using SE-110, SE-110-CI, SE-120, and SE-150. There were no disruptions to the tenant and the owner saved over $5,000 in direct labor costs associated with reduced surface preparation.

 

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