Porphyry stone maintenance

Ease of maintenance is a feature of Australian Porphyry Stone.  The following routine is recommended to clean and enhance the appearance of Australian Porphyry Stone surfaces.

Over time a film of grime may build up on the stone surface. The extent of such build up depends on the location, type of traffic and pollution the stone is exposed to.

Weekly

To remove dirt from both the natural split surface and the grout channels, simply hose down using a garden hose applying moderate water pressure.

Quarterly

Water the surface with a mixture of acid detergent (e.g. TR50 or the equivalent) and water. Dilute 1 part detergent : 20 parts water

Note: Formula TR50 is acid and should not be used where the use of acidic cleaners is expressly forbidden.

Apply with a watering can and work with a stiff brush, broom or scrubbing machine. Leave to stand for 3 minutes then was away with clean cold water.

Annually or as required

Apply an acid detergent (TR50) diluted 10:1 leave for 10 minutes then hose off using a pressure spray of 1500 psi applied in a 150mm fan jet.  Direct the spray onto the stone at an angle of approximately 45 degrees. Do not apply constant pressure to the grouting.

Australian Porphyry Stone accepts no liability for any or all losses resulting from the maintenance of Porphyry stone. Expert advice should be sought from the manufacture of the cleaning products used.