Prosoco Copper Stain Remover Part A

- Part A of a Two-Part Copper Stain Removal System – PROSOCO® Sure Klean® Copper Stain Remover is a special two-part cleaning system designed to remove copper stains from masonry surfaces — Part A is the dry powder component, which is mixed on-site with Part B (liquid additive) into a poultice for brush or trowel application over the stained surface.

- Solubilizes Deep-Seated Copper Sulfate Stains – Engineered to solubilize deep-seated copper sulfate stains and draw the staining elements out of the masonry and into the poultice mix — the poultice material is then scraped from the surface and the masonry cleaned with a water wash, lifting stains that surface cleaners simply cannot reach.

- Will Not Etch or Harm Masonry – Does not etch or otherwise harm the masonry surface — safe to use on brick, limestone, sandstone, and other masonry substrates where aggressive acid cleaners would damage the stone. The poultice approach pulls the stain out rather than burning it off the surface.

- No Special Tools or Equipment Required – No special tools or equipment required — apply with standard plasterer's trowels and brushes. Appropriate for use with PROSOCO's OverCoat temporary protective paper film for controlled, contained applications on vertical and overhead masonry surfaces.

- 3-Year Shelf Life & VOC Compliant – 3-year shelf life in tightly sealed, unopened containers — keeps in inventory until needed. Surface and air temperatures should be at least 50°F (10°C) during application, and the product is compliant with all national, state, and district VOC regulations. The go-to remedy for stubborn copper drip stains from flashing, gutters, downspouts, and weathered architectural copper.