Cobble™ Prep - Efflorescence & Organic Stain Remover

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. Try before you apply — Shop samples now. Product Features Safer than typical acids Contains no phosphoric or muriatic acids to wash concrete Eco-friendly Applications 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 Directions Always test your surface for color reaction in an inconspicuous area first. Clean individual stains prior to an entire area efflorescence cleaning only. Apply the Cobble Pre