FAQs, top-selling products and more.
The #1 choice for masonry cleaners and hard surface care products for thousands of contractors, architects and engineers nationwide since 1939.
Top Selling Products
BROWSE PRODUCTS
Masonry Cleaning
Sure Klean is #1 choice for masonry cleaning since 1956.
Water Repellents
Prolong the life of your hard surfaces by repelling water, salt, oil and stains.
Graffiti Removal
Erase graffiti and protect surfaces from future graffiti attacks.
Paint Removers
Remove paint and other coatings.
Consolidation
Strengthen and stabilize deteriorated masonry.
High Performance Coatings
Breathable coatings stop water and let vapor escape.
Colleen Peters, Product Support Specialist
36 years of experience
HARD SURFACE CARE
Where to buy and product support
Frequently Asked Questions
STAIN IDENTIFICATION SUPPORT
Send us a pic of your #weirdmasonrystain or tag us on Instagram for help.
#WeirdStains deserve a holiday too. We're taking a few weeks off of this contest and we will return on Wednesday, Jan. 13. Meanwhile....
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𝑾𝒆 𝒔𝒕𝒊𝒍𝒍 𝒏𝒆𝒆𝒅 𝒖𝒔𝒆𝒓𝒔 𝒍𝒊𝒌𝒆 𝒚𝒐𝒖 𝒕𝒐 𝒔𝒖𝒃𝒎𝒊𝒕 𝒘𝒆𝒊𝒓𝒅 𝒔𝒕𝒂𝒊𝒏𝒔 𝒇𝒐𝒓 𝒕𝒉𝒊𝒔 𝒈𝒂𝒎𝒆 𝒕𝒐 𝒌𝒆𝒆𝒑 𝒈𝒐𝒊𝒏𝒈. If you see any weird masonry stains out there, take a quick picture and DM or tag us! Thanks everyone, and happy holidays.
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#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
Looking through old vacation photos led one of our staff members to spot this week's #WeirdStain. Can you name it? Submit your best guess for a chance at one of our NEW prizes. Good luck.
#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain #WeirdStain
What's going on here? This week's #WeirdStain is another one spotted by a PROSOCO employee on a walk near her home in Kansas City. Think you know what's causing this odd pattern? Hit us with your best shot. As always, all correct guesses will be eligible for our weekly prize.
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#WeirdStainWednesday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain also comes to you from the campus of UMKC. What is this stain and how did it get there? All correct guesses will be entered to win this week's prize. Due to the Thanksgiving holiday this week, our winner will be selected on Monday, Nov. 30. More time to get your guesses in! Good luck.
#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain was spotted by a PROSOCO employee on a recent stroll on the campus of nearby University of Missouri-Kansas City. Think you know what it is? Submit your best guess in the comments for a chance to win one of our NEW prize giveaways! Good luck.
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#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain #WeirdStain
This week's #WeirdStain comes from Sarah Holder, PROSOCO's preservation and technical training specialist. Can you name what's causing these dark spots on this buff-colored brick? As always, all correct guesses will be eligible for our weekly prize. Bonus: Can you also name this brick-bond pattern?
#WeirdStainWednesday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain was spotted on a recent jobsite visit by a PROSOCO staff member in the Chicago area. What is this stain and how did it get there? All correct guesses will be entered to win this week's prize. Good luck!
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#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain comes from a recent PROSOCO project. Think you know what it is? Submit your best guess in the comments for a chance to win one of our NEW prize giveaways! Good luck.
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#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain #WeirdStain
Here are the people who know how to take better care of masonry facades.
PAINT STRIPPING MADE EASY, EVEN IN SOCAL
It took nearly 30 tries before Bill Seidel found a suitable paint stripper for a six-story building in downtown LA.
CLEANING TERRA COTTA
M-A Building & Maintenance wanted a cleaner that was going to do the job but wasn’t going to harm windows.
RESTORING A DEFACED MONUMENT
Pat Sullivan saw the story on the evening news, he knew he could help.