High-Performance Cleaning for Solution-Dyed Nylon (SDN)
Solution-dyed nylon is the workhorse of the commercial world, offering incredible stain resistance and colour fastness.
Technical guide to maintaining the appearance and longevity of SDN flooring.
Unlike traditional carpets where the dye is applied to the surface, Solution-Dyed Nylon (SDN) has the pigment added during the liquid stage of fibre production. This means the colour is 'locked in' through the entire fibre, making it exceptionally resistant to fading from sunlight and bleaching from harsh cleaners.
SDN is the preferred choice for environments where spills are frequent, such as healthcare or hospitality. However, its very resilience means it can hide a massive amount of dry soil, which acts like sandpaper on the fibres if not removed regularly.
Nylon itself is also one of the most resilient fibres available for contract flooring, with a natural memory that allows it to recover from crushing far better than polypropylene. Combined with solution dyeing, this gives facilities managers a carpet that can be cleaned aggressively over many years without the colour loss or matting that would affect softer or surface-dyed alternatives.
- Extreme colour fastness allows for more aggressive stain removal.
- Highly resistant to bleach-based cleaners in clinical settings.
- Durable fibres withstand intensive agitation and extraction.
- Static-resistant properties are maintained through proper cleaning.
- Excellent recovery from pile crush in high-traffic zones.
Cleaning for hygiene and clinical standards
In healthcare settings, SDN's ability to withstand disinfecting cleaners is vital. Our cleaning process doesn't just remove visible dirt; it targets the microscopic bio-burden, using hot water extraction to sanitise the floor without compromising the fibre's integrity.
Because the dye is part of the fibre, we can use specific heavy-duty treatments on stubborn stains that would ruin other carpet types.
Managing the soil load in 'invisible' dirt
SDN's structure is so good at hiding soil that a carpet can look clean while holding pounds of grit. We use industrial-grade pile lifters and high-filtration vacuums before the wet clean to ensure this abrasive material is removed.
Matching cleaning method to traffic pattern
Not every area of an SDN installation soils at the same rate. Entrance zones and corridors accumulate grit and moisture far faster than open-plan seating areas, so a blanket approach to cleaning frequency often wastes budget in low-traffic zones while under-servicing the areas doing the real work.
We map traffic patterns before agreeing a maintenance schedule, applying interim low-moisture cleaning to heavy-use lanes between full hot water extraction visits. This keeps the whole floor looking consistent rather than showing a patchwork of clean and worn sections.
Because SDN tolerates more frequent cleaning without fibre damage, this tiered approach is genuinely practical rather than theoretical — the fibre itself allows for it.
- Entrance and corridor zones typically need more frequent attention.
- Interim low-moisture cleaning extends the interval between full extractions.
- Traffic mapping avoids over-servicing low-use areas.
- SDN's durability supports a more intensive cleaning schedule where needed.
Why businesses ask us for this
- • SDN offers superior stain and fade resistance.
- • Regular grit removal is essential to prevent mechanical fibre wear.
- • Professional extraction restores the vibrant 'locked-in' colour.
- • Traffic mapping ensures cleaning budget is spent where it matters most.
- • Nylon's natural fibre memory supports a more frequent cleaning schedule.
Deciding between the two
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