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Cobble Prep - GL

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Cobble Prep - GL

Cobble Prep is an eco-friendly formulation containing no muriatic or phosphoric acid and engineered to clean unsealed paving stones and concrete and prepare surfaces for sealing. This highly concentrated blend will remove efflorescence (white lime residue) and surface stains resulting from fertilizer, vegetation, and mortar. Cobble Prep is economical, easy to rinse, and provides a uniform surface for the sealer to be applied.


  • Safer than typical acids
  • Contains no phosphoric or muriatic acids to wash concrete
  • Eco-friendly


  • Remove efflorescence (white circles or clouding)
  • Rust stain removal
  • Cleans berry and vegetation stains
  • Etching concrete
  • Remove stubborn, hard-to-remove stains from concrete, stone, brick pavers, and other surfaces
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© 2020 by Excel Supplies. All rights reserved.