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Illustration: A white cleaner jug beside outdoor stone steps with use icons.
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Product and application illustrations. Follow the product label and written use guidance.

CleenU product solution

Outdoor Stone Cleaner & Restorer

Deep restoring · Safe on calcareous stone · Private label

A sandstone patio gone grey-black, its warm color hidden? Wet it, apply at 1:3, keep it wet 15–20 minutes, scrub, and rinse—once dry, the original color and texture return. Alkaline, so it’s safe on limestone; private label from 500 bottles.

  • All natural stone is porous, sandstone and limestone especially so. Rain carries soot, exhaust particles, pollen, tannins from rotting leaves, and algae into the pores; the water evaporates, the soil stays, and year after year the color darkens. Surface rinsing only reaches the outermost layer. Deep cleaning needs the solution to sit in the pores long enough to break down organics and disperse particles before scrubbing and plenty of water bring them out.
  • Many stone cleaners use acid because it’s fast, but limestone, marble, and calcareous sandstone etch in acid and turn rough, pale, or pitted, and iron minerals in some granites can bleed yellow rust. This alkaline system tackles organic soil and oily binders without reacting with calcium carbonate, so it’s safe on many outdoor stones. Once clean and dry, a stone sealer can slow re-soiling.
MOQ
500 bottles
Free samples
3–5 days
Bulk lead time
Scheduled with the order
For
Cleaning product brandsGarden and outdoor brandsHardware and building-supply channels
Get OEM/ODM solutionView specifications
Product overviewProduct detailsSpecificationsOEM / ODMFAQ
Illustration: Outdoor Stone Cleaner & Restorer application scene banner

Product value

What does Outdoor Stone Cleaner & Restorer clean?

Outdoor Stone Cleaner & Restorer deep-cleans granite, sandstone, slate, and limestone patios, steps, walls, and hardscape, removing grey grime, algae marks, and leaf stains.

View product details
Product focusAlkaline deep cleaning, acid-free, safe on calcareous stone
Main surfaceGranite, sandstone, slate, and limestone patios, steps, stone walls, and hardscape
Use caseOlder patio refresh; Villa and hotel hardscape; Before selling or letting
Project supportOEM/ODM private label · free sample in 3–5 days

Product summary

Product type
Alkaline deep-cleaning outdoor stone restorer
Intended use
Grey grime, algae marks, and leaf stains deep in granite, sandstone, slate, and limestone
Formula
Alkaline builders with nonionic surfactants and a chelating agent, pH 9.5–11.0 as supplied; no acid or chlorine; use at 1:3, neat for heavy soil.
For
Cleaning product brands, garden and outdoor brands, hardware and building-supply channels, ecommerce sellers

Where it fits

  • Patio & Outdoor
  • Home Surfaces
Illustration: Gray-black grime beside warm yellow stone on steps; not a measured cleaning test.

Before & after

Before and after (use illustration)

Before: a five-year-old sandstone patio is grey and dark overall, its grain and original warm yellow barely visible. After: the left half, treated at 1:3 for 20 minutes, scrubbed, rinsed, and dried, shows warm natural color and clear grain, in sharp contrast with the untreated right half.

  • Before: sandstone gone grey-black, its warm color hidden
  • After: warm color and crisp texture once dry
  • A clear contrast with the untreated section, and no etching
Illustration: A stone pore cross-section with dark grime particles, drops and water.

How it works

How Deep Soil Leaves the Pores

Soil in outdoor stone is organic matter (algae residue, tannins, humus), oily binders from exhaust and soot, and mineral particles. Pre-wetting fills the pores with water so the solution isn’t sucked in and spent at once. Alkaline builders break down and saponify organics and oily binders so particles lose their grip, surfactants disperse and suspend them, and a chelating agent ties up calcium and magnesium so no new deposits form in the pores. Scrubbing and plenty of water flush the loosened soil out.

  • Pre-wet to control absorption
  • Alkali breaks down organics and oily binders
  • Surfactants disperse particles
  • Chelator prevents redeposition
  • Scrub and flush
Illustration: Brushes, hose nozzles, basin and stone samples in different conditions with numbered steps.

Usage guidance

Use guidance

  1. Sweep off debris, test a hidden spot, and soak the stone with a hose.
  2. Apply at 1:3 (neat for heavy soil), leave 15 to 20 minutes, misting in dry weather to keep it wet.
  3. Scrub with a stiff brush and rinse thoroughly; judge after 24 hours of drying and repeat if needed.
Illustration: Highlighted garden stone steps, paving and walls beside material precautions.

Before you use it

Important notes

  • Not for: Indoor polished stone
  • Not for: Lawns, flowers, and ponds
  • Not for: Aluminum and galvanized parts
  • Not for: Direct sun or freezing weather
  • Not for: Alternating with acidic cleaners

Product comparison

How to choose an Outdoor Stone Cleaner & Restorer

Deep restoration of natural stone patios, steps, and walls: Outdoor Stone Cleaner & Restorer. Everyday cleaning of concrete pavers: Garden Paver Cleaner or Patio Paver Cleaner. Protection after cleaning: Patio & Balcony Water-Repellent Sealer.

View product comparison
Decision pointOutdoor Stone Cleaner & RestorerAcidic stone cleaner
Limestone and calcareous sandstoneSafeEtches
Organic soilBroken down by alkaliFair
Rust bleed on graniteNonePossible
Stone rangeMany outdoor stonesMust be chosen carefully
Key benefits

Where Outdoor Stone Cleaner & Restorer stands out

Grey, Dark Stone Means Years of Soil in the Pores

All natural stone is porous, sandstone and limestone especially so. Rain carries soot, exhaust particles, pollen, tannins from rotting leaves, and algae into the pores; the water evaporates, the soil stays, and year after year the color darkens. Surface rinsing only reaches the outermost layer. Deep cleaning needs the solution to sit in the pores long enough to break down organics and disperse particles before scrubbing and plenty of water bring them out.

Why Alkali, Not Acid

Many stone cleaners use acid because it’s fast, but limestone, marble, and calcareous sandstone etch in acid and turn rough, pale, or pitted, and iron minerals in some granites can bleed yellow rust. This alkaline system tackles organic soil and oily binders without reacting with calcium carbonate, so it’s safe on many outdoor stones. Once clean and dry, a stone sealer can slow re-soiling.

Who it is for

Who it's for, where it's used, and when not to use it

For

Cleaning product brandsGarden and outdoor brandsHardware and building-supply channelsEcommerce sellers

End-use scenarios

Older patio refreshVilla and hotel hardscapeBefore selling or letting

When not to use it

Indoor polished stoneLawns, flowers, and pondsAluminum and galvanized partsDirect sun or freezing weather
Product specifications

Product Specifications and Custom Options

Key product details and custom options for your project.

Product specifications

Product type, cleaning scope, and format.

Product typeAlkaline deep-cleaning outdoor stone restorer
SurfacesGranite, sandstone, slate, and limestone patios, steps, stone walls, and hardscape
Use scenariosOlder patio refresh; Villa and hotel hardscape; Before selling or letting
Target soilsGrey grime, algae marks, and leaf stains deep in granite, sandstone, slate, and limestone
DirectionsDilute 1:3; use neat on heavy soil; 15–20 min dwell kept wet, scrub, and rinse
Not forIndoor polished stone; Lawns, flowers, and ponds; Aluminum and galvanized parts; Direct sun or freezing weather; Alternating with acidic cleaners
Size and packaging3.78 L (1 gal) concentrate jug
pHpH 9.5–11.0 at 25°C
ScentFresh pine scent
Shelf life and storage24 months unopened; keep tightly closed in a cool, dry, well-ventilated place. Protect from heat, direct sunlight, and freezing
B2B custom options

Private label, packaging, MOQ, samples, and delivery.

OEM/ODM and private labelFrom product direction and sample review to packaging, production, and delivery for your Outdoor Stone Cleaner & Restorer project.
Packaging and labelsScrew cap (concentrate jug) / measuring cap (1 L bottle) / optional sprayer, fill size, labels, and retail sets can be customized
Case pack4 × 3.78 L per case
MOQ500 bottles
Sample timeFree sample: 3–5 days
Bulk lead timeScheduled with the order after packaging and label approval
DocumentsSDS/MSDS, TDS, and batch COA provided per project on inquiry
OEM/ODM process

OEM/ODM project process

Move from product direction and sample review to packaging, production, and delivery for Outdoor Stone Cleaner & Restorer.

01

Define sizes and customers

Set 1 L and 5 L concentrate sizes and choose retail or stone-care professionals.

02

Free sample

A free sample is usually ready in 3–5 days for project review.

03

Packaging and labels

Set fill size, screw cap, label language, the warnings your market requires, and dilution, test-first, and keep-off-plants-and-ponds instructions.

04

Bulk delivery

Standard MOQ is 500 bottles; bulk orders are scheduled after packaging and labels are approved. Outdoor stone cleaning peaks in spring and summer, so sample and stock in winter.

Cooperation Advantages

Why choose CleenU for Outdoor Stone Cleaner & Restorer?

From product positioning and samples to packaging and repeat supply, CleenU supports OEM/ODM projects built around Outdoor Stone Cleaner & Restorer.

Alkaline deep cleaning

The alkali, surfactant, and chelator blend sets how deep it cleans; no acid for calcareous stone.

Concentrate plus sprayer

Concentrates save freight; 5 L suits professionals; add a hose-end sprayer.

Sample reviews with clear criteria

Review samples on your weathered, darkened sandstone, granite, and limestone samples against clear points: pore soil removal, color recovery after drying, and effect on limestone and sandstone surfaces.

Outdoor pine

Pine suits outdoor lines; unscented is also available.

Labels and documents

We supply bilingual labels, SDS/MSDS, TDS, and batch COAs, with dilution, test-first, and keep-off-plants-and-ponds instructions on the label, and can arrange third-party testing for your market.

Consistent supply and reorders

Each batch is retained and ships with a COA, so reorders match in color, scent, and feel.

Packaging solutions

Packaging and labeling options

Plan packaging format, label language, and shelf presentation around Outdoor Stone Cleaner & Restorer and your target channel.

Show packaging and label options

Packaging options

Core size: 3.78 L (1 gal) concentrate jug with handle. Also available: 1 L concentrate in a measuring-cap grip bottle, channel case packs, and ecommerce bundles with the patio sealer and a stiff brush. Screw cap (concentrate jug) / measuring cap (1 L bottle) or optional sprayer options, with labels and cartons made to your brand.

Supporting Documents

Supporting Documents and Materials

Purchasers usually confirm whether the materials are complete before formal cooperation. Preparing documents in advance helps with quoting, sampling, and channel review.

Show available documents

Project documents

When you inquire, we provide SDS/MSDS, a TDS, batch COAs, label directions, and packaging files for your project.

Related Products

Related products, solutions, and articles

Explore related cleaning products, application guidance, and OEM/ODM resources for Outdoor Stone Cleaner & Restorer.

Related products

Garden Paver CleanerAlkaline paver concentrate used at 1:5 that lifts organic soil from pores to restore color; available private label.Patio & Balcony Water-Repellent SealerPenetrating patio sealer that makes water bead without changing color or adding slip; available private label.Stone Oil Stain RemoverStone oil stain remover that dissolves and draws oil out, neutral and marble-safe; available private label.

Related solutions

Patio Paver & Driveway Cleaning SolutionThe right patio cleaner depends on what the patio is made of and what's on it.Natural Stone & Tile Care SolutionThe first rule for a marble cleaner is that it must be neutral.OEM/ODM cleaning product solutionsReview private-label, packaging, and label project options.

Related knowledge

Cleaning knowledgeExplore product selection, use, and development articles.
Frequently Asked Questions

Frequently asked questions (FAQ)

Find practical answers about Outdoor Stone Cleaner & Restorer, private label, samples, MOQ, documents, and delivery.

How to use

Can grey, dark outdoor stone be restored?

Mostly, yes. The darkening is soil in the pores, and deep cleaning brings the original color back. Stone that is weathering or spalling will only look better, not new.

Can I use it on a limestone patio?

Yes. It contains no acid, so it won’t react with limestone’s calcium carbonate; that’s the main difference from acidic stone cleaners.

How much area does it cover?

At 1:3, 1 L covers about 15 to 20 m²; use neat on heavy soil and expect less coverage.

How do I clean a natural stone patio with it?

Mix 1 part cleaner to 3 parts water, keep the stone wet for 15 to 20 minutes, then scrub and rinse. The alkaline builders and chelating agents need that wet contact time to loosen grime, algae marks, and leaf stains from the pores, so mist again if it starts to dry, and use it straight on heavy soil. Skip hot sun and freezing days, and cover or steer clear of nearby lawn, flower beds, and ponds.

Surfaces and common questions

Why can’t I see the result while it’s wet?

Wet stone always looks darker. Let it dry for 24 hours; the true color and grain show once it’s fully dry.

Should I seal after cleaning?

Recommended. Once clean and dry, a patio sealer reduces water and soil uptake and makes future cleaning easier.

Can I use a pressure washer with it?

For rinsing, yes, but sandstone and limestone are soft, so keep the nozzle back to avoid surface damage.

Can I use it on stone walls and sculptures?

Yes. Apply bottom-up on vertical stone, keep it wet through the dwell, scrub with a soft brush, and rinse top-down. Use a soft brush on carved detail and keep pressure washers at a distance.

Some areas look much lighter after cleaning. Is that normal?

Usually that’s the stone’s real color that grime was hiding. Once the whole area is done and fully dry, it evens out; give darker spots another round.

Will it take off rust stains on the steps?

No. Rust is iron oxide and alkaline cleaners won’t remove it—use a stone rust-stain remover separately, and don’t apply the two products at the same time.

Can I use it on indoor stone countertops or polished marble floors?

No. It's made for outdoor patios, steps, and walls, and polished indoor stone is outside its use range. The long wet dwell, scrubbing, and heavy rinse it relies on don't suit countertops or indoor floors, so use a pH-neutral cleaner made for indoor stone instead.

Buying and private label

What should we decide first for a private-label outdoor stone cleaner & restorer?

Three things: concentrate sizes (1 L, 5 L), home-and-garden retail or stone-care firms and property managers, and whether to pair with the patio sealer as a clean-and-protect system. “Acid-free, safe on calcareous stone” sets it apart.

What are the sample, MOQ, and lead-time terms?

Free samples are usually ready in 3–5 days. Standard MOQ is 500 bottles, and bulk orders are scheduled after packaging and labels are approved.

What can be customized?

All of it: formula direction, scent, fill size (3.78 L jug, 1 L, 5 L, and more), cap and dosing format, label design and language, and ecommerce bundles with the patio sealer and a stiff brush.

Can we test samples first?

Yes, we ship samples first. Test them on weathered, darkened sandstone, granite, and limestone samples like the ones your customers handle, and record pore soil removal, color recovery after drying, and effect on limestone and sandstone surfaces. That tells you more than a before-and-after photo.

Which documents can you provide?

We provide SDS/MSDS, a TDS, and batch COAs, plus bilingual label content for your target market. They aren’t posted publicly; we send them per project on inquiry.

How is private-label pricing quoted?

Pricing is tiered by packaging, cap type, label, and order quantity, starting at the 500-bottle MOQ. Send your target quantity, fill size, and packaging needs, and we’ll quote unit prices by volume tier with sample and lead-time details.

Cooperation consultation

Launching your own Outdoor Stone Cleaner & Restorer?

Send us your market, stone types, sizes, and estimated volume. We will plan around the outdoor season with you.

Get OEM/ODM solution View specifications
Request a sample / quote

CleenU

CleenU home cleaning products manufacturer

CleenU manufactures robot mop cleaning solutions and household cleaners for brands, distributors, and online sellers, with private label and OEM from 500 bottles.

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