Odstraňovanie olejových škvŕn — Postupný prístup

Na odstránenie olejových a mastných škvŕn z kamenných povrchov. Metóda závisí od veku a hĺbky škvrny.

Treatment Variants

Fresh oil stain (less than 24 hours old)

1. Lithofin OIL-EX — Blot excess oil with kitchen paper — do NOT wipe (wiping spreads the oil). Apply OIL-EX directly onto the stain. Leave for 15 minutes.
   Dilution: undiluted · Wait: 15 minutes
2. Lithofin OIL-EX — Remove dissolved oil residue with clean kitchen paper. If a shadow remains, apply a second dose for 15 minutes. Rinse with clean water.
   Dilution: undiluted · Wait: 15 minutes

Old oil stain (more than 24 hours, up to weeks)

1. Lithofin OIL-EX — Apply OIL-EX generously to the stain. Saturate kitchen paper or cotton wool with OIL-EX and press firmly onto the stain. Cover with cling film to prevent evaporation. Leave for 2-24 hours depending on severity.
   Dilution: undiluted · Wait: 2-24 hours
2. Lithofin OIL-EX — Remove poultice. Check if stain has lightened. If visible oil remains, repeat the poultice with fresh OIL-EX — old stains often need 2-3 applications.
   Dilution: undiluted · Wait: 2-24 hours per repeat
3. Lithofin MN Power-Clean — After oil extraction is complete, clean the treated area with diluted Power-Clean to remove any residual haze. Scrub lightly with nylon brush, rinse thoroughly.
   Dilution: 1:10 · Wait: 5 minutes

Deep-set oil stain (months old, deeply penetrated)

1. Lithofin OIL-EX — Apply OIL-EX as poultice: saturate cotton wool, press firmly, cover with cling film. Leave 24 hours. Remove and let stone dry 4-8 hours.
   Dilution: undiluted · Wait: 24 hours + 4-8 hours drying
2. Lithofin OIL-EX — Apply second poultice, rotated 90 degrees from the first (oil migrates along crystal grain — changing direction catches different pathways). Leave 24 hours.
   Dilution: undiluted · Wait: 24 hours
3. Lithofin OIL-EX — Third application if needed. Deep stains may require up to 4 applications. Each round extracts more oil from the pores. Stop when no further improvement is visible between applications.
   Dilution: undiluted · Wait: 24 hours
4. Lithofin MN Power-Clean — Final deep clean of treated area. Dilute 1:5 for heavy residue. Scrub with nylon brush, rinse thoroughly with plenty of water. Allow to dry 24 hours.
   Dilution: 1:5 · Wait: 10 minutes dwell, 24 hours drying

Oil on highly porous stone (sandstone, limestone, concrete)

1. Clean water — Pre-wet the area AROUND the stain (not the stain itself) with clean water. This prevents the oil from spreading further into dry stone during treatment. The wet barrier stops capillary migration.
   Wait: 5 minutes to absorb
2. Lithofin OIL-EX — Apply OIL-EX as poultice to the stain area. On porous stone, oil often spreads wider than the visible stain — treat an area 10-15cm larger than visible discoloration. Cover with cling film, leave 12-24 hours.
   Dilution: undiluted · Wait: 12-24 hours
3. Lithofin OIL-EX — Repeat poultice if needed. Porous stone often needs 2-3 rounds. Between rounds, let stone dry completely (8-12 hours) so you can assess progress accurately — wet stone always looks darker.
   Dilution: undiluted · Wait: 12-24 hours per round, 8-12 hours drying between
4. Lithofin MN Stain-Stop — After successful oil removal, seal the entire surface with Stain-Stop to prevent future oil penetration. On porous stone, two coats are recommended: apply first coat, wait 15 minutes, apply second coat wet-on-wet.
   Dilution: undiluted · Wait: 24 hours before use

Tips

• Čerstvé škvrny sa odstraňujú oveľa ľahšie — konajte do prvej hodiny, ak je to možné.
• Nikdy nepoužívajte vodu na čerstvú olejovú škvrnu — voda tlačí olej hlbšie do kameňa.
• Metóda s kašou funguje kapilárnym pôsobením: rozpúšťadlo rozpúšťa olej a absorpčný materiál ho pri schnutí vytiahne.
• Medzi aplikáciami nechajte kameň úplne vyschnúť — nemôžete posúdiť hĺbku škvrny na mokrom kameni.
• Na tmavom kameni môže odstránená olejová škvrna zanechať svetlejšiu plochu. Použite Colour Intensifier na zjednotenie.

⚠️ Warnings

• Na mramore a vápenci: použite MN Wash & Clean namiesto Power-Clean na záverečné čistenie (citlivosť na kyseliny).
• OIL-EX je na báze rozpúšťadiel: zabezpečte dobré vetranie, žiadne otvorené plamene, noste rukavice.
• Nepoužívajte OIL-EX na povrchoch spojených živicou (niektoré terrazzo, kremeňový kompozit) — najprv otestujte na skrytom mieste.
• Pred ošetrením odstráňte zdroj olejovej kontaminácie — inak sa škvrna vráti.

Expected Result

Olejová škvrna extrahovaná z pórov kameňa. Povrch čistý a pripravený na opätovné utesnenie.