Complete guide for homeowners and professionals: from removal to prevention, with Resina Color’s professional anti-mold products. SD Spray, Sanimuf, Sanamur, Sanamur Argento, MuroVivo Free and Anti-Mold Paints.
That dark stain in the corner of the wall
Imagine walking into a room and noticing a dark patch in the corner, near the window or along the skirting board. At first it looks like ordinary dirt. Then the patch grows, spreads, and takes on that unmistakable shape — a black or greenish “stain.” The air starts to smell damp and musty. You have mold in your home.
You are not alone: mold affects millions of homes every year, especially during the cold months. It forms on north-facing walls, in bathrooms, kitchens, and basements — anywhere there is moisture and poor ventilation. And it is not just an aesthetic problem: mold spores (microscopic particles released into the air) can irritate the respiratory tract and worsen allergy symptoms.
The good news? A definitive solution exists. Not simply “covering up the problem” with a coat of white paint, but a complete 3-step system, designed and refined through years of research by Resina Color, an Italian manufacturer of professional-grade paints and resins.
Why “covering” mold is completely pointless
When people spot mold, the instinctive reaction is to grab a sponge, scrub vigorously, and maybe apply a coat of paint. A few weeks later, the mold is back — often worse than before.
Why? Because mold is not just on the surface. Mold is a microscopic fungus that drives its roots (hyphae) deep into the plaster, the concrete, between layers of paint. The spores — think of them as the fungus’s “seeds” — remain alive even after surface cleaning and wait for the right conditions (moisture + warmth) to reproduce.
Eliminating mold permanently requires three distinct actions:
- Remove the visible mold on the surface (dissolve it — do not scrub it)
- Deep-sanitize the live spores still inside the plaster
- Protect with a paint that prevents mold from coming back
The Resina Color Anti-Mold System: 3 Steps, Lasting Results
Resina Color has engineered a product line that covers exactly these three phases, with professional formulations available even for the DIY homeowner. Here is a look at each one.
Step 1 — SD Spray No Mold: Dissolve and remove mold safely
The first mistake almost everyone makes is rubbing mold with a dry cloth or sanding the surface. Doing so releases thousands of spores into the air, which then settle on other walls and spread the problem.
SD Spray No Mold by Resina Color is a broad-spectrum anti-mold cleaner: simply apply it directly to the affected area and let it work. The product literally dissolves the mold, making removal easy and safe — without dispersing spores. It works on both interior and exterior walls, against any type of mold or algae.
Why it works:
- Broad-spectrum action: eliminates all types of mold and algae
- Suitable for interior and exterior walls
- Convenient spray format: no dilution required, ready to use immediately
- Optimally prepares the surface for the next treatment
Step 2 — Sanimuf: Deep-sanitize invisible spores
After removing visible mold with SD Spray, it is time for the most important step: deep sanitization. Spores that have penetrated the plaster are still alive and ready to germinate as soon as conditions allow.
Sanimuf is a high-concentration sanitizing solution — not a paint, but a targeted treatment to be applied with a stiff-bristle brush, working the surface firmly to encourage deep penetration. It must be applied undiluted across all infected areas and the surrounding zones.
After 24–48 hours, the spores will have been neutralized and the wall will be ready to receive the final paint.
Suitable for:
- Raw and painted plaster, exposed concrete, asbestos-cement (eternit)
- Spaces with high moisture levels (basements, bathrooms, north-facing rooms)
- In severe infestations, the treatment can be repeated
Step 3 — Choose the Right Paint for Your Situation
This is where Resina Color offers the most targeted solution: there is no single universal anti-mold paint, because every environment has different needs. Here are the available options:
Sanamur — Washable, hygienizing anti-mold emulsion paint
Picture a paint that not only beautifies the wall but actively protects it against mold and bacteria. That is Sanamur: an emulsion paint with antibacterial and immunizing properties, enriched with safe anti-mold and anti-algae agents.
Its excellent washability makes it ideal for environments where hygiene is paramount: nurseries, clinics, medical rooms, kitchens, and bathrooms. Suitable for both interior and exterior use, on any masonry surface.
Key strengths:
- Fungicidal, bactericidal, anti-algae
- Excellent washability: withstands frequent cleaning
- Pleasant fragrance: leaves a fresh scent in treated rooms
- Interior and exterior use
Sanamur Argento — Silver ion technology for 10 years of protection
Sanamur Argento takes anti-mold protection to a higher level, thanks to the addition of silver ions to its formulation. Silver ions — a technology used in hospital environments — deliver a natural, continuous antibacterial action: they inhibit the growth of bacteria and mold on the wall surface over time.
This product has successfully passed Thor laboratory tests according to ISO 22196:2007, the international standard for measuring antibacterial activity. In plain terms: its effectiveness is proven and certified.
Key strengths:
- Silver ions: hospital-grade antibacterial technology, now for your home
- Long-lasting protection for up to 10 years
- Super-washable: ideal for high-traffic areas or frequent sanitization
- Tested and certified: ISO 22196:2007 method
- Recommended for nurseries, clinics, operating theatres, and residential spaces with severe mold problems
MuroVivo Free — Thermal-insulating, anti-condensation paint, formaldehyde-free
Mold often originates from an invisible enemy: condensation. When warm, humid air meets a cold wall, moisture settles on the surface like dew. That damp environment is exactly what mold thrives on.
MuroVivo Free tackles the problem at its root: it is a paint based on modified vinyl-versatate resin with microscopic hollow glass spheres. These spheres — imagine millions of tiny “thermal cushions” within the paint layer — create an insulating barrier that reduces heat exchange between the wall and the room, eliminating condensation.
The Free formula means completely free of formaldehyde (a potentially irritating chemical substance), making it safe for the whole family, children included.
Key strengths:
- Hollow glass spheres: natural thermal insulation that eliminates condensation and thermal bridges
- FREE formula: zero formaldehyde, safe for children and sensitive individuals
- Triple action: anti-mold + anti-algae + anti-condensation
- Applicable on old and new plaster, concrete, plasterboard, and well-adhered existing paint
- Ideal for: bathrooms, kitchens, basements, laundry rooms, north-facing walls
Resina Color Anti-Mold Paints — The complete range for every need
Beyond the products already described, Resina Color offers an entire line of anti-mold paints formulated to address every type of situation: from simple prevention in healthy environments to intensive protection in particularly challenging spaces. These paints combine breathability (allowing the wall to “breathe” by releasing vapour without accumulating moisture) with next-generation anti-mold and antibacterial agents.
They are suitable both for homeowners tackling the job themselves and for professionals seeking a reliable product with consistent performance on large surfaces.
Quick Reference Guide: Which Product Should You Choose?
Use the table below to quickly identify the most appropriate product for your situation:
Complete Cycles: The All-in-One Solution
To simplify the choice further, Resina Color offers ready-made complete anti-mold cycles, with the three products for the three phases already paired together:
- Cycle with Sanamur Argento: SD Spray + Sanimuf + Sanamur Argento — for those who want maximum certified protection lasting up to 10 years.
- Cycle with MuroVivo Free: SD Spray + Sanimuf + MuroVivo Free — for those who want to solve the condensation problem and live in a formaldehyde-free, mold-free environment.
Practical Application Tips
Whether you are a first-time DIYer or an experienced decorator, these precautions make the difference between a mediocre result and a professional one:
- Do not dry-sand mold: you risk inhaling spores. Always use SD Spray first to dissolve it.
- Respect the waiting times: after Sanimuf, wait at least 24 hours before painting. The spores need time to be neutralized.
- Always apply two coats: the first coat penetrates, the second creates the protective shield.
- Treat the surrounding areas too: mold spreads invisibly. Always treat a wider area than the visibly affected zone.
- For MuroVivo Free: dilute with 20% water for the first coat and 10–15% for the second, to achieve the optimal thickness of 250–300 microns (the right thickness is what guarantees insulating performance).
Mold is not inevitable. Choose the right system.
Let’s go back to that dark corner we mentioned at the beginning. Now you know it is not a problem without a solution, and you know exactly what to do: three steps, three products, results that last over time.
With Resina Color you have access to a complete line, formulated and manufactured in Italy, tested both on professional job sites and in private homes. Each product is designed to integrate with the others, creating a synergistic system where every phase enhances the effectiveness of the next.
Have questions about which product is right for you? Visit resinacolor.com or contact the technical team directly: you will find professionals ready to guide you to the right choice for your environment.



