About Sika Quartz-01 IN

Sika Quartz-01 IN is the fine aggregate that does the quiet work inside a resin floor. On its own it is simply graded white quartz sand, cleaned and kiln-dried, screened to a 0.1-0.3 mm band and packed in 30 kg bags. Its purpose only becomes clear once it is stirred into a Sikafloor epoxy: the resin binds the grains, and the grains give the cured floor its body, its hardness and much of its wear life. Without a graded filler like this, a self-smoothing screed would be resin-rich, expensive and prone to shrinkage; with it, the same system lays down thicker, flatter and tougher for a fraction of the material cost.

For a contractor or specifier the appeal is consistency. Because the quartz is washed and oven-dried before bagging, it carries no moisture or fines that could react with or cloud the epoxy, so every batch disperses the same way and the mixed screed flows predictably. It is chemically inert, which means it simply occupies volume and adds strength without interfering with the resin’s cure or its ESD, chemical or hygiene properties. That reliability is why Sika packages it as a dedicated system accessory rather than leaving crews to source loose sand of unknown grading and dryness on site.

The technical insight

A cured resin floor is a composite: the epoxy is the glue and the quartz is the skeleton. Load applied to the surface is carried largely through grain-to-grain contact within the hard mineral matrix, while the thin resin films around each grain transfer stress and hold everything together. Because quartz sits around 7 on the Mohs scale, far harder than the resin alone, packing the system with graded quartz is what gives the finished floor its abrasion resistance and compressive strength. The 0.1-0.3 mm sizing matters just as much as the mineral: grains this fine pack densely yet still let the mix stay fluid enough to self-level, so you get a smooth, closed surface without the pinholing or ridging that coarser sand would leave in a thin topping. Kiln-drying is the other half of the story. Any residual moisture on the aggregate would compete with the amine-cured epoxy chemistry, causing haze, soft spots or blistering, so the washed-and-dried grain is what lets the resin reach full cure and full hardness.

Where it is used

• Filler for self-smoothing Sikafloor epoxy underlayments in factory and warehouse floors
• Bulking aggregate in resin toppings where a thicker, more economical build-up is needed
• Filled screeds in pharmaceutical, food and healthcare suites requiring a hard, hygienic finish
• Resin floors in electronics and ESD-controlled production areas built on Sikafloor ECF/ESD systems
• Abrasion-resistant coloured or clear resin toppings in production and assembly halls
• Levelling underlayments beneath decorative or high-build resin wearing coats
• Commercial and institutional resin floors needing improved surface hardness
• General blending filler across compatible Sikafloor Multidur ES resin build-ups

Key advantages

• Cleaned and kiln-dried, so it disperses cleanly and does not introduce moisture into the epoxy
• Tightly graded at 0.1-0.3 mm for dense packing and smooth, self-levelling flow
• Chemically inert filler that does not disturb resin cure, ESD or chemical-resistance properties
• Raises surface hardness and abrasion resistance of the finished floor
• Economical way to build film thickness and cut resin consumption per square metre
• Factory-consistent grading removes the guesswork of sourcing loose site sand
• Purpose-matched to Sikafloor Multidur ES, ECF and ESD systems for reliable results
• Long 24-month shelf life in sealed bags eases site stocking and planning

Limitations & considerations

• Not a standalone product; it must be blended into a Sikafloor resin and has no use applied on its own
• The white quartz colour is for filling body, not decoration; it does not set the finished floor colour
• Fixed 0.1-0.3 mm grading suits fine self-smoothing screeds, not coarse broadcast or heavy-duty screed build-ups
• Bags must be kept sealed and dry between +5 C and +30 C; damp or contaminated quartz can spoil the epoxy cure
• Dosage is dictated by the specific Sikafloor system data sheet, so coverage cannot be quoted for the filler alone
• Handling fine dry silica requires dust control and appropriate respiratory protection on site

Selection & best practice

Specifications

Industry use cases

How we position Sika Quartz-01 IN

Sika Quartz-01 IN is the fine filler in the Sika flooring family; for the same self-smoothing build-ups you will also draw on the Sikafloor resins it is designed for, such as Sikafloor Multidur ES for the underlayment or topping and the Sikafloor ECF/ESD systems for static-controlled areas, plus a compatible Sikafloor primer for the substrate. Where a decorative broadcast finish is wanted rather than a filled screed, Sika’s coloured quartz and coarser quartz grades are the better fit. Within our wider range, if the job is a dry-shake concrete hardener rather than a resin floor, Fosroc Nitoflor Quartztop is the product to specify; and for cementitious self-levelling underlayments outside the epoxy world, Ultratech and other cement-based levellers we stock are worth comparing.

Related Industrial Flooring products

View all Industrial Flooring products →