Churches & Religious Structures
Bone Dry Products
Penetrating Concrete Sealers for Religious Facilities
From Bone Dry Products
Churches, synagogues, and other houses of worship often require building expansions and renovations in order to maintain their structure, and contractors trust the industry-leading moisture treatment experts at Bone Dry Products. Bone Dry has formulated a line of high-quality surface sealants to repel moisture and contaminants from concrete substrates while remaining permeable to water vapor.
Sanctuaries, fellowship halls, gyms, classrooms and basements are almost always concrete slabs with carpet, LVT, tile or wood on top, and many sit closed between services. Bone Dry Pro and Bone Dry Plus seal those slabs from within so moisture, mold and musty odor never reach the flooring.
Take Concrete Protection to the Next Level with Our Pro Application System
Bone Dry Pro sets your adhered flooring systems and polished concrete floors up for success by sealing out moisture and adding antimicrobial protection to your concrete slabs. Backed by a 25-year replacement warranty that includes labor and material to replace the finished flooring system, adhesives, and prep material, Bone Dry Pro is your permanent, cost-effective and VOC-free solution to expensive moisture-related repairs like bubbling, cracking, fading, efflorescence and other issues.
For large pours, our in-house team of applicators are available to travel nationwide to perform the sealing process. If you already have a team of contractors, ask us about sending a rep to oversee the application and guarantee your concrete sealing success. Give us a call to discuss your options.

Where Moisture Shows Up in a Church Building
Fellowship halls, gyms and classrooms on grade
Carpet, LVT and sheet goods over a slab on grade are where moisture failures show first. Bone Dry Pro seals new or existing slabs from within, and flooring can go down in as little as 6 hours. See sealing a slab on grade before flooring.
Basement classrooms, youth rooms and storage
Below-grade slabs take Bone Dry Pro, Original or Plus; block walls are sealed first with Bone Dry Block Wall. See sealing a below-grade concrete slab and waterproofing a block basement wall from the inside.
Mold and musty odor in a building that sits closed all week
Bone Dry Plus is Bone Dry Original with antimicrobial additives built in: it permanently blocks moisture vapor in the slab and prevents mold, mildew and odor-causing bacteria in the pores. Bone Dry Pro carries built-in antimicrobial protection as well.
Additions and new sanctuaries on a donor-funded schedule
Bone Dry Pro is sprayed as soon as the new slab can be walked on, so the schedule does not wait on cure and dry-down; see sealing a new concrete pour. For a ground-up building, Bone Dry Pro Admix puts the protection in the mix at the batch plant.
Existing hard-troweled slabs
One coat of Etch-A-Crete opens the pores so the sealer can penetrate; then seal as normal.
Church projects
CrossWay Community Church
A growing congregation building its own church. The slab was not porous enough for the sealer to penetrate, so Etch-A-Crete was applied first, then Bone Dry Pro was sprayed on and became an integral part of the slab.
Westminster Presbyterian Church, Minneapolis
A 40,000-square-foot addition on Nicollet Mall opened in January 2018; the church’s contractor, Mortenson Construction, used Bone Dry Pro to seal the concrete substrate.
See all Bone Dry projects.
Prep, Apply, Floor
Prep existing concrete with Etch-A-Crete where needed, spray Bone Dry Pro, and put the floor down; the full application sequence is on sealing a new concrete pour. Tell us the rooms, square footage and flooring type and we will spec the system.
Frequently Asked Questions
Yes. Bone Dry Pro is sprayed as soon as the slab can be walked on, the day of the pour, and flooring can go down in as little as 6 hours because Quick Dry is always included.
Used standalone, Bone Dry Pro functions as the curing compound and achieves the results a curing compound achieves, so cure and seal happen in one pass. ASTM C-309 covers liquid membrane-forming compounds and does not apply to a penetrating sealer; where a specification names C-309, a dissipating curing compound can be applied after the Pro Sealer is applied.
Bone Dry Plus is Bone Dry Original with antimicrobial additives built in: it permanently blocks moisture vapor in the slab and prevents mold, mildew and odor-causing bacteria in the pores. Bone Dry Pro also carries built-in antimicrobial protection. Block basement walls are sealed first with Bone Dry Block Wall.
Yes. A burnished or hard-troweled surface is effectively sealed shut, so it needs one coat of Etch-A-Crete first: darken the slab, let it work 5-10 minutes, and let it dry to the touch. That opens the pores so Bone Dry Pro can penetrate; then apply as normal.
Bone Dry Pro is backed by a 25-year replacement warranty that includes labor and material to replace the finished flooring system, adhesives, and prep material.





