Tar Removal - Gneiss
Tar Removal - Gneiss
Professional advice and the right Lithofin products for your gneiss
HighTar, bitumen, and asphalt stains on stone and tile surfaces are among the most stubborn residues to remove. These petroleum-based substances bond strongly to porous surfaces and harden over time, becoming increasingly difficult to treat.
Recommended products
Lithofin OIL-EX as a poultice over the remaining stain
View productLithofin MN Power-Clean
View productLithofin MN Stain-Stop after treatment
View productStep-by-step instructions
First remove bulk tar mechanically with a plastic scraper - do not use metal tools that can scratch the stone. Apply Lithofin OIL-EX as a poultice over the remaining stain. Cover with cling film and leave for 12-24 hours. Remove the poultice, scrub with Lithofin MN Power-Clean, and rinse thoroughly. Repeat if necessary. Seal with Lithofin MN Stain-Stop after treatment.
Expert tips
- Tar can penetrate deeply into porous stone
- Solvent-based cleaners may affect some sealants
- Always test in an inconspicuous area first
Need help?
Use our Lithofinder for personalised advice, or contact us.