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.
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
We're on a roll with stains submitted by users like you! Keep 'em coming. This week's #WeirdStain comes from Instagram user @suttoninspectionconsulting . Can you name the streaky stain on this north-facing wall? 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 is an odd drip-like pattern on these recently installed pavers of a PROSOCO employee. (That should give you a clue on how the stain occurred in the first place.) As always, come at us with your best guess. All correct guesses will be submitted to a random drawing to win one of our NEW cool prizes.
#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain also comes to us from a PROSOCO staff member who noticed the stain on his son's school building. Do you know what it is? 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 PROSOCO staff member who spotted this weird stain on a fence post in her neighborhood. 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.
#WeirdStainWednesday #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain #WeirdStain
This week's #WeirdStain was submitted by a user looking for identification of the stain on this retaining wall, and a solution on how to remove it. What do you think we told him? Take your best guess for a chance to win this week's prize. We have NEW prizes!
#WeirdStainWednesday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Architecture #Architect #Construction #Builder #GeneralContractor #ContractorsOfInsta #Build #Prosoco #ProsocoProject #AskProsoco #WeirdMasonryStain
Hello September! The school year is starting off just as you hoped, right? No? Well, let us comfort you with something familiar: Our weekly #WeirdStainWednesday contest. This stain comes to us from an outdoor fountain in Southern California. Think you know what it is? Comment with your best guess and we'll select a random winner out of all correct answers. Did we mention we have new prizes?
#WeirdStain #WINSday #WeirdStainWINSday #WeCanCleanThat #HardSurfaceCare #DirtyMasonry #Restoration #Masonry #Construction #GeneralContractor #ContractorsOfInsta #Build #ProsocoProject #AskProsoco #WeirdMasonryStain
This week's #WeirdStain is from Bob Holmes, PROSOCO's long-time rep covering Louisiana, Texas and Oklahoma. What do you think this dark blemish is in the middle of the brick? 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