Pentra-Clean (CR)

Concentrated Concrete Floor Cleaner and Restorer with Lithium Densifier Technology

A commercial-grade concrete floor cleaner that cuts through dirt, grime, and residue while using reactive Nano-Lithium technology to harden, protect, and restore gloss. Designed to increase floor longevity, reduce maintenance costs, and extend the life of polished concrete, warehouse floors, and industrial surfaces.

Reduces need for buffing and burnishing
Extends polished concrete floor life
Leaves no residue or dulling film

SKU: 20101

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Most commercial floor cleaners do one thing: remove dirt. Pentra-Clean CR does that and more. This concentrated cleaner-restorer is formulated for routine and deep cleaning of polished concrete floors, densified slabs, and other cement-based surfaces, but what sets it apart is the reactive Nano-Lithium chemistry built into the formula.

Here’s how it works: as you clean, the lithium silicate compounds in Pentra-Clean CR penetrate the concrete surface and chemically react with free calcium hydroxide in the slab. This reaction produces calcium silicate hydrate, the same compound that gives concrete its strength. The result is a denser, harder surface that resists abrasion, reduces dusting, and maintains its sheen longer than floors cleaned with conventional products.

This means your polished concrete floors actually improve with regular cleaning rather than gradually wearing down. The densifying action fills microscopic pores in the surface, making the floor more resistant to staining, scuffing, and water spotting. Over time, you’ll notice longer intervals between burnishing cycles, less frequent need for deep restoration, and lower overall maintenance costs.

Pentra-Clean CR is designed for use with automatic floor scrubbers equipped with soft pads or brushes. For daily maintenance, simply scrub and vacuum as normal. For periodic deep cleaning, apply the solution, let it dwell for 15 to 20 minutes, then scrub again and extract. The concentrated formula mixes at 4 oz per 15 gallons of water, making it economical for large facilities while delivering professional-grade results.

Unlike pH-neutral daily cleaners that only address surface dirt, Pentra-Clean CR’s alkaline formulation (pH 11) is specifically engineered to activate the lithium silicate chemistry. Despite this higher pH, it leaves no residue or dulling film that would compromise your floor’s appearance or require additional rinsing.

Key Features

Cleans and Densifies in One Step.

Cuts through dirt, grease, grime, and surface soils while the Nano-Lithium technology simultaneously hardens the concrete. Your floors get cleaner and stronger with every use.

Restores Gloss Without Residue.

Leaves no dulling film or buildup that plagues conventional floor cleaners. Polished concrete stays clear and reflective, and periodic buffing with a white or tan pad can further enhance shine.

Reduces Long-Term Maintenance Costs.

Fewer burnishing cycles, longer intervals between deep cleans, and reduced need for costly floor restoration services. The product pays for itself in saved labor hours.

Protects Against Wear and Damage.

Regular use reduces scuffing, scratching, and water spotting by creating a more resilient surface that stands up to forklift traffic, foot traffic, and equipment movement.

NFSI Certified High Traction.

Tested and certified for slip resistance by the National Floor Safety Institute under ANSI B101.1 Wet Test standards. Effective cleaning without compromising workplace safety.

Low VOC and Facility-Friendly.

VOC content under 50 g/L makes it suitable for occupied commercial buildings, food processing facilities, and LEED-certified spaces without air quality concerns.

Industrial & Logistics

HIGH-TRAFFIC DURABILITY

Cleans and strengthens concrete floors that see constant traffic from forklifts, pallet jacks, and heavy equipment. Ideal for warehouses, distribution centers, manufacturing plants, cold storage facilities, loading docks, and mechanical rooms where downtime is costly and floors need to perform.

Commercial & Institutional

MAINTAIN APPEARANCE WITH LESS EFFORT

Keeps polished concrete looking sharp in high-visibility spaces without excessive buffing or burnishing. Perfect for retail stores, shopping centers, office lobbies, schools, healthcare facilities, stadiums, and laboratories where floor appearance matters.

Food, Beverage & Specialty Facilities

RESIDUE-FREE FOR SENSITIVE ENVIRONMENTS

Leaves no film or chemical residue that could compromise sanitation or contaminate products. Trusted in breweries, bottling plants, food processing areas, pharmaceutical facilities, commercial kitchens, and wastewater treatment plants.

Frequently Asked Questions

What's the difference between a concrete densifier and a concrete sealer?

Concrete densifiers penetrate the surface and chemically react with the concrete to permanently harden and strengthen the material from within. They reduce dusting and porosity but do not form a protective barrier on top. Concrete sealers, on the other hand, either penetrate to add water repellency or form a film on the surface to block moisture and stains.

How do I dilute Pentra-Clean CR for auto-scrubbers?

Use 4 oz of concentrate per 15 gallons of fresh water in your floor scrubber solution tank. The product is available in 4 oz pouches (60-count box), 1-gallon jugs, 5-gallon pails, and 55-gallon drums for larger operations.

What's the difference between routine cleaning and deep cleaning with this product?

For routine maintenance, scrub with the squeegee and vacuum engaged as normal. For deep cleaning, apply the solution and scrub with the vacuum/squeegee raised, let the product dwell on the surface for 15 to 20 minutes without drying, then scrub again with the vacuum engaged to remove all solution. The extended dwell time allows the cleaner to break down embedded soils and stubborn grime.

Will this product damage or dull my polished concrete floors?

No. Pentra-Clean CR is formulated specifically for polished and densified concrete. It leaves no residue and actually helps restore gloss over time. For additional shine, buff with a white or tan burnishing pad after cleaning. Many contractors find they can significantly extend their burnishing schedules when using CR as part of their regular floor care program.

What type of pads or brushes should I use?

Always use soft pads or soft brushes. Aggressive pads can scratch polished concrete surfaces and undo your finish work. This is especially important on high-gloss or mechanically polished floors.

Is Pentra-Clean CR a pH-neutral cleaner?

No, it has a pH of 11, which is alkaline. This higher pH is necessary for the lithium silicate chemistry to react with the concrete and provide densifying benefits. Despite the alkaline formulation, it does not leave residue or damage properly finished concrete surfaces.

How does this compare to a standalone lithium silicate densifier?

Pentra-Clean CR combines cleaning and densifying in one step during regular floor maintenance. It’s not a replacement for initial densifier treatment during polishing, but it reinforces and maintains that treatment over time. Think of it as ongoing protection rather than initial application.

What's the recommended maintenance program?

Use Pentra-Clean DC (Daily Clean) for everyday cleaning and Pentra-Clean CR (Cleaner-Restorer) for periodic deep cleaning and restoration. This combination extends the life of your concrete floor while maintaining its appearance and slip resistance. Contact Convergent Concrete Technologies for specific recommendations based on your facility’s traffic levels and floor type.

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