Made in Australia, our Acid Stains are a water-based liquid bearing combination of minerals and acid. The acid stain penetrates the micro pores of the concrete forcing a chemical reaction between the lime within the concrete and the stain. The color of the concrete will be permanently altered providing a varied natural colored marbled look.
Fortis Acid Stains have the added benefit of limited residue as they contain no Hydrochloric Acid (muriatic acid), eliminating the need for neutralising.
Frequently Asked Questions
- Question – Will the acid stain look exactly the same as the colour on the web site?
- Answer – No, dilution and lime content will effect the colour. Always do a test patch 1st.
- Question – How old does the concrete need to be before applying?
- Answer – We recommend a minimum 14 days.
- Question – Can I use a metal spray bottle to apply the acid stain?
- Answer – No, you MUST use plastic spray bottles.
- Question – Can I use hydrochloric acid to wash the concrete prior to using acid stains?
- Answer – This will deplete the lime resulting in poor take up of the minerals.
- Question – What is the best way to prepare the surface of the concrete?
- Answer – Sanding with 80 grit sand paper or lightly pressure clean.
Pack Sizes (ltr kit): 1, 5
Technical Data Sheets:
A-TDS
