The short answer
Act gently and soon. Blot diya oil and draw it out with a poultice of baking soda or multani mitti. Let wax harden, lift it with a plastic card, then blot the residue. Sweep dry rangoli colour before wetting it. Treat haldi and kumkum on light marble with a peroxide poultice after a test. Never use acid on marble.
Key takeaways
- Blot, do not rub, and test treatments on a hidden spot first.
- Poultices of baking soda or multani mitti draw out oil over a day or two.
- Sweep rangoli dry first, and never use acid or bleach on marble.
Advice for you
Tell us who you are and we will show you what matters most in this guide.
I am building or renovating my home
Start with the gentlest method and give poultices time. Most festival stains on marble come out with patience.
Book a visit to see full slabsI am an architect or interior designer
Clients often ask about festival stains; a care card with this list saves calls after Diwali.
Request samples for a clientI am a contractor or builder
If asked to remove stains, test first, avoid acid washes, and reseal after cleaning.
Work out quantitiesI live outside Bengaluru
The methods are the same everywhere. If a stain will not shift, ask us and we will advise.
Choose slabs on a video callFirst rules for any stain on stone
- Blot; do not rub. Rubbing spreads oil and pushes colour deeper.
- Test any treatment on a hidden spot or a spare piece first.
- Never use vinegar, lemon, acid cleaners or bleach on marble; they etch and discolour it.
- Work from the outside of the stain inwards.
- Be patient: poultices draw stains out over a day or two, not minutes.
Stain by stain
| Stain | What to do | Avoid |
|---|---|---|
| Diya oil, ghee | Blot; apply a poultice of baking soda or multani mitti with a little water; cover; leave 24 to 48 hours; lift and rinse | Rubbing; acid cleaners |
| Candle wax | Let it harden; lift with a plastic card; blot the residue with a pH-neutral cleaner | Metal scrapers; chipping at it |
| Rangoli powder | Sweep or vacuum dry first; then wipe with a damp cloth and pH-neutral cleaner | Wetting it before sweeping |
| Haldi, kumkum, sindoor on light marble | Wipe at once; for a set stain, a poultice with hydrogen peroxide after a hidden test | Peroxide on dark stones; bleach |
| Cracker soot outdoors | Brush and wash with water and mild cleaner | Acid washes on Kota or sandstone |
| Cracker burn marks | Light marks may clean off; deeper marks need grinding by a stone restorer | Scrubbing with abrasives |
How to make a poultice
- Mix baking soda or multani mitti with water into a paste like thick curd.
- Spread it about half a centimetre thick over the stain and slightly beyond.
- Cover with cling film and tape the edges; poke a few small holes.
- Leave 24 to 48 hours while it dries and draws the stain into the paste.
- Lift with a plastic scraper, rinse with clean water and dry.
- Repeat if the stain has lightened but not gone.
Which stones need the most care?
Light, porous marbles such as Thassos White, Statuario and Botticino Classico show oil and colour most. Dark marbles such as Nero Marquina hide colour but show pale etch marks if acid is used. Granites such as Black Galaxy resist most stains. Outdoor Kota Blue can usually be scrubbed with water and a brush.
When to call a stone restorer
If a stain has not moved after two poultices, if the stone has dull etch marks, or if a burn has marked the surface, a stone restorer can grind, re-polish and reseal the area. Read marble care: stains, sealing and cleaning and, for next year, cleaning marble and granite before Diwali.
