Everbuild-Concrete-Hardener-Dustproofer-Everbuild-CHD5L-p-Concrete-Hardener-Dustproofer-is-formulated-from-high-quality-silicate-resins-to-both-harden-&-dustproof-new-&-old-concrete-floors-for-both-internal-&-external-use-It-reacts-chemically-with-the-lime-content-of-concrete-to-form-a-hard-wearing-surface-p-Everbuild-CHD5L-Concrete-Hardener-Dustproofer-5-Litre