Limestone
AntiEtch®
Beaumaniere
France (Provence)
LimestoneAntiEtch® Candidate
Black Limestone (Hainan Black)
China (Hainan)
ASTM C568Frost ResistantAcid SensitiveSealing RecommendedSofter Surface
Black Limestone (Hainan Black)
Photo coming soon
HardnessMedium(3–4 Mohs)
SoftHard
Acid SensitivityHigh Risk — Will Etch
SafeHigh Risk
Verify Before You Buy
Slab Yard Diagnostic Protocol
Limestone, travertine, and onyx are all calcite-based stones — they will react with acids and benefit from sealing. Your Stone ID Kit lets you confirm the chemistry and assess the slab's porosity before you commit.
From your Stone ID Kit
HCl dropper bottle (5–10%)Glass tileMagnifier
The full step-by-step protocol — including expected results and red flags — is included in your downloadable Buyer's Guide.
Stone TypeLimestone
Geological NameLimestone
OriginChina (Hainan)
ASTM SpecificationASTM C568
ClassificationCalcareous — Consistent
Available FinishesPolished, Honed (Matte), Brushed, Tumbled
AntiEtch® FinishesPolished, Honed (Matte) only
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Seam Staining Precaution
Black Limestone (Hainan Black) can absorb oils from fabrication adhesives, potentially causing darkening along seams and edges. Ask your fabricator to seal all cut edges with an impregnating sealer before applying adhesive, and to use a non-staining epoxy rated for natural stone. This simple precaution prevents most seam-staining issues.
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MORE® AntiEtch® Protection Available
Black Limestone (Hainan Black) is a calcareous stone susceptible to acid etching. AntiEtch® provides permanent protection against lemon, vinegar, and other common acids.
Learn More🔬
MB Stone I.D. Kit — Test Your Stone
Not sure what stone you have? This kit includes the tools professionals use to identify stone type, test acid sensitivity, check absorption, and determine the right care products.
Shop Stone I.D. Kit — $139.97HardnessMedium(3–4 Mohs)
SoftHard
Acid SensitivityHigh Risk — Will Etch
SafeHigh Risk
HIGH — etches from any acid
🔥Heat Tolerance
~300°F
💧Sealer
Yes (critical)
Technical Details
ASTM SpecificationASTM C568
Mohs Hardness3–4
Absorption0.5–12%
Density (pcf)110–165
Compressive Strength (psi)1,800–15,000
Flexural Strength (psi)N/A
Abrasion Resistance (Ha)N/A
Thermal Tolerance~300°F
ClassificationCalcareous — Consistent
Geological NameLimestone
OriginChina (Hainan)
Where can you use Black Limestone (Hainan Black)?
Tap an application to see the full recommendation.
🏠
Interior
🌿
Exterior
Recommended Conditional Not Recommended
Care Instructions
Maintenance recommendations for Black Limestone (Hainan Black)
🧹 Daily Cleaning
- Wipe surfaces with a soft, damp cloth or microfiber towel
- Use a pH-neutral stone cleaner — never use acidic or abrasive products
- Avoid lemon, vinegar, wine, or any acidic substance on the surface
- Blot spills immediately — do not wipe, as this spreads the acid
💧 Sealing Schedule
- Sealer type: Yes (critical)
- Seal every 1–2 years for normal residential use
- Test with water drops — if absorption occurs within 10 minutes, it's time to reseal
- Always clean the surface thoroughly before applying sealer
- Allow sealer to cure fully before using the surface (typically 24 hours)
⚠️ Warning Signs — Time to Call a Pro
- Dull spots or rings where liquids have sat on the surface
- Visible cracks, chips, or separating seams
- Discoloration or staining that won't clean away
- Surface feels rough or gritty in areas that were previously smooth
- White marks or dulled areas from acid etching (lemon, vinegar, wine)
- Grout deterioration around the stone edges
🛒 Recommended Products
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pH-Neutral Stone Cleaner
For daily cleaning. Avoid acidic or alkaline cleaners.
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Impregnating Sealer
Penetrates the stone to protect from within. Apply annually.
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MORE® AntiEtch® Treatment
Permanent acid-etch protection by Sureshine professionals.
🛡️ MORE® AntiEtch® Protection
Eliminate acid etching permanently. One application protects Black Limestone (Hainan Black) from lemon, vinegar, wine, and all common acids. Applied by certified Sureshine professionals.
Get a free estimateNeed professional help?
Get a free consultation from Sureshine’s stone care experts.
Premium Protection · MORE® AntiEtch®
Protect your Black Limestone (Hainan Black)
Black Limestone (Hainan Black) is a calcareous stone that etches from lemon juice, wine, and coffee. MORE® AntiEtch® stops it.
- Permanent acid-etch protection
- Invisible — keeps the natural finish
- Installed by certified pros
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