HMK R165 Cleaner
Best heavy-duty cleaner for restoring unglazed terracotta and brick surfaces.
This heavy-duty acid wash is the ultimate reset button for neglected terracotta and brick, cutting through stubborn cement haze and mineral buildup that milder soaps simply ignore. It is a powerful, no-nonsense solution, but be warned: its aggressive chemistry is strictly for unglazed surfaces and will permanently etch polished stone.
$36.26
at
The Vac Shop
Who it's for
- Installers clearing stubborn mineral deposits and cement haze
- Homeowners tackling deep-set construction grime and rust
- Restoration experts reviving the look of weathered clay tiles
Who should skip it
- Users uncomfortable handling corrosive chemicals and protective gear
- Owners with nearby marble, polished stone, or chrome fixtures
- DIYers looking to preserve existing sealants and grout integrity
Performance breakdown
Deep Cleaning Power
Acid-based formula cuts through stubborn cement haze and construction residue effortlessly.
Surface Versatility
Highly effective on unglazed terracotta, clay, and brick paving surfaces.
Concentration Efficiency
High dilution ratios provide exceptional coverage for large-scale restoration projects.
Oxidation Control
Specialized inhibitors effectively manage metallic deposits and prevent unsightly surface staining.
Application Safety
Requires careful handling and testing due to the potent acidic composition.
Ease of Dilution
Liquid concentrate mixes cleanly for consistent results across various soil levels.
Key Specs
Product Form
Liquid Concentrate
Unit Size
1 Liter, 5 Liter
Coverage (1L Concentrate)
Up to 200 sq ft
Coverage (5L Diluted)
Up to 4000 sq ft
Application Temperature Range
50°F to 80°F
Contains
Inhibited dilute formic acid
Bristle-free
true
Cleaning Solution Form
Liquid Concentrate
Cleaning Tool Type
Cleaning Solution
Application Method
Pour
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