For pharmaceutical companies, the warehouse is the core storage area for raw pharmaceutical materials and finished medicines. The selection of flooring directly impacts drug storage safety, daily warehouse operation and maintenance, and it is also a key inspection item during GMP audits. Ordinary standard epoxy coatings are prone to wear, dusting and stain retention. Solvent-free color sand systems release odors during application. Water-based epoxy color sand floor coating has become a preferred flooring solution for pharmaceutical warehouse areas in recent years.
Why Water-Based Epoxy Colored Sand Floor Coatings Is Ideal for Pharmaceutical Warehouses
✅ Low VOC & Eco-Friendly, Ideal for Enclosed Warehouses Water acts as the diluent. It has nearly no strong pungent odor and low VOC emissions. During construction inside enclosed warehouse spaces, there is no harsh solvent vapor that may contaminate stored medicines or harm on-site staff. The cured surface is non-toxic and meets environmental material requirements for the pharmaceutical industry.
✅ Seamless Dense Surface to Meet GMP Cleanliness Standards The flooring forms an integrated seamless layer. It does not trap dust or support mold growth. Its compact sealed surface prevents liquid medicines and disinfectants from penetrating into the substrate. The floor can be wiped and high-pressure cleaned regularly with sanitizing agents without trapping dirt, complying with GMP requirements for smooth, easy-to-clean flooring surfaces.
✅ High Wear & Compression Resistance for Forklift Heavy Loads The blended color sand aggregate delivers high hardness and scratch resistance. With frequent forklift transportation, pallet handling and static heavy stacking in warehouses, the surface resists peeling, chalking and substrate exposure over long-term rolling load. It withstands weak acids, alkalis and routine disinfectant cleaners without rapid aging or discoloration. Grey color hides minor scratches well.
✅ Anti-slip Performance Balances Cleanliness & Safety Fine color sand particles create a subtle anti-slip texture. When water or disinfectant residue remains on the floor, it reduces slipping risks for staff and forklifts, solving the hazard of slippery high-gloss plain epoxy floors when wet.
✅ Flexible Installation & Convenient Renovation Water-based formula tolerates higher moisture content in concrete substrates. Renovation of old warehouses does not require lengthy waiting for full concrete drying. Phased construction is available to shorten downtime, perfect for partial refurbishment where the pharmaceutical facility cannot fully stop operations.
System Structure of Water-Based Epoxy Color Sand Flooring
- Water-based epoxy primer: Penetrates and seals the concrete base, strengthens substrate bonding and prevents concrete dusting.
- Water-based epoxy color sand intermediate coat: Mixed quartz sand aggregate for levelling, creates a high-load-bearing layer and repairs pits and cracks.
- Water-based epoxy color sand topcoat: Dense clean top layer, dust-proof and sanitizer-resistant. Matte grey finish avoids glare under warehouse lighting.
Color Recommendation: Medium grey is the top choice for pharmaceutical warehouses. It conceals dirt and makes contaminants easy to spot, which is the most common colour for pharmaceutical storage areas. Optional upgrade: Anti-static water-based color sand flooring is available for warehouses storing raw API and electronic drug packaging.
Key Notes for Construction & Operation
- Substrate requirement: Concrete strength ≥ C20 with sufficient curing. Oil stains, hollow areas and cracks must be repaired in advance to guarantee coating adhesion.
- Construction environment: Suitable temperature range 5–35°C. Curing time needs to be extended under high humidity.
- Curing period: Full curing must be completed before stacking goods to prevent early heavy-load damage.
- Daily maintenance: Clean with neutral detergent. Avoid long-term soaking with strong corrosive solvents. Regularly inspect high-traffic forklift lanes and corners for wear.
Comparison: Water-Based VS Solvent-Free Color Sand Flooring
- Water-based epoxy color sand: Minimal odor, great for enclosed space and old warehouse renovation, better tolerance for substrate moisture, good wear resistance. Best for pharmaceutical warehouses (not high-grade clean production workshops).
- Solvent-free epoxy color sand: Greater film thickness and superior chemical resistance; slight odor during application, mainly used in pharmaceutical clean production workshops.
Summary: Solvent-free color sand flooring is recommended for clean manufacturing workshops. For pharmaceutical storage warehouses, water-based epoxy color sand floor coating balances GMP compliance, environmental performance, cost and construction convenience.
Application Scenarios
Finished drug warehouses, raw material warehouses, packaging material storage, cool storage rooms, warehouse aisles, sample inspection rooms.