Repair Systems — 03 — Facade & External Envelope
Masonry cleaning — chemical poultice
Technical product reference for chemical poultice masonry cleaning systems for masonry facade remediation on Australian Class 2 strata buildings. Covers absorbent clay or paper-pulp poultice carriers combined with chemical cleaning agents for deep extraction of embedded stains from porous masonry — used where surface washing cannot remove deeply set organic, biological or mineral stains without damaging the masonry surface. Suitable for acid-sensitive substrates where acid washing is not appropriate.
Masonry chemical poultice cleaning types
Select the poultice cleaning type below to compare products, technical data, and procurement sources.
Attapulgite / H₂O₂ Poultice
Attapulgite clay + H₂O₂ — for organic staining, biological residue, and mould — low chemical risk
Kaolin Solvent Poultice
Kaolin clay + organic solvent — for oil, grease and hydrocarbon staining — solvent handling required
Proprietary Masonry Poultice
Commercially formulated multi-stain poultice cleaners — specialist heritage and restoration products
Disclaimer
This page provides general technical information only. Chemical poultice selection must be matched to the specific stain type and masonry substrate. Trial application on an inconspicuous area is required before full-scale treatment. OH&S requirements for chemical handling must be complied with.