HMK® R165 – Terracotta Cleaner

HMK® R165 – Terracotta Cleaner

Heavy-Duty Acid-Based Cleaner for Terracotta, Clay Tiles, Brick & Block Paving

HMK® R165 is a professional-grade, acid-based concentrated cleaner designed to remove grout and cement residue, construction dirt, persistent lime deposits, and efflorescence from a wide variety of unglazed and acid-tolerant surfaces.

Safe for interior and exterior applications, HMK® R165 is ideal for:

• Unglazed terracotta & clay tiles

• Brick & block paving

• Unglazed ceramic & porcelain tiles

• Concrete blocks & bricks

• Acid-tolerant natural & artificial stone

This specialized formula also contains inhibitors to control oxidation of vanadium salts, manganese, pyrite, and other metallic deposits often found in clay tiles and brick, ensuring a deeper and safer clean.

Key Benefits

✔ Removes tough cement and grout residues after installation
✔ Eliminates lime scale, efflorescence & construction dirt
✔ Safe for unglazed terracotta, brick, block paving & clay tile
✔ Formulated with inhibitors to prevent oxidation & discoloration
✔ Suitable for indoor & outdoor heavy-duty stone cleaning

Directions for Use

1. Preparation: Protect adjacent surfaces. If underfloor heating exists, turn it off and allow the surface to cool. Pre-wet the area before applying cleaner.

2. Dilution: Mix HMK® R165 with clean water (1:2 to 1:10) depending on the intensity of the dirt.

3. Application: Apply to the wet surface with a scrubbing brush, broom, or suitable pad. Allow a short dwell time but do not let dry.

4. Cleaning: Scrub again and remove dirty liquid.

5. Aftercare: Clean thoroughly with HMK® R155 Intensive Cleaner (acid-free) diluted 1:10–1:20, then rinse well with clean water.

6. Repeat as necessary for heavy contamination.

💡 Pro Tip: When using a wet vacuum, add HMK® Z702 Defoamer to reduce foam.

Technical Details

• Product Type: Heavy-Duty Acid-Based Terracotta & Masonry Cleaner

• Surfaces: Terracotta, clay tile, brick, block paving, unglazed porcelain & ceramic tile, concrete blocks, acid-tolerant stone

• Coverage: ~200 sq. ft. per liter (concentrate) | up to 800 sq. ft. per liter (diluted)

• Unit Sizes: 1 Liter | 5 Liter | 10 Liter

• Packaging: 12 x 1L bottles/box | 2 x 5L cans/box | 2 x 10L cans/box

Safety & Storage

⚠️ Warning: Contains inhibited dilute formic acid. Corrosive. Fumes may cause eye and skin burns or oxidation. Avoid contact with eyes and skin. If exposed, rinse immediately and seek medical attention.

• Store in a cool place, lid tightly closed.

• Do not use below 50°F (12°C) or above 77°F (25°C).

• Not for use on polished marble, fine-honed limestone, plastics, or metals.

• Always test in an inconspicuous area before use.

Why Choose HMK® R165?

Unlike general cleaners, HMK® R165 is specifically engineered for unglazed terracotta, clay tile, brick, and block paving, providing the strength needed to remove stubborn cement films, efflorescence, and lime deposits. Its oxidation-inhibiting formula makes it the go-to cleaner for contractors, restoration specialists, and homeowners who want professional results.

👉 Perfect for terracotta floors, brick pathways, clay tiles, outdoor paving, and construction cleanup projects.