Atriafloor Filler

What it is

Which of these do I actually need? This family is the invisible half of every ATRIA system: the primer that makes the finish stick, and the sealer that makes it last. The rule is simple — Primerquarz for walls, Atriafloor Primer BC for floors, whether that is bare concrete and screed or existing tile, wood, and glass — and every floor or wet-area job ends with Atriapol on top, because microcement is never waterproof from a single can: it is the sealed assembly, base coat plus Atriapol, that handles water.

Atriafloor Filler: Not a primer — a transparent pore sealer applied after the decorative resin and before Atriapol. One coat only, interior only; it closes capillary voids without altering vapour permeability. Also usable as an optional topcoat over interior METALLICUM, per ATRIA guidance of 2026-08-06 — over fully cured, clean, dry metal, sample-tested first, and never over Wild Rust, which has its own Protettivo.

Why choose it

• Two primers cover every substrate — quartz-grip acrylic for walls, and an anchoring two-component epoxy that bonds to concrete, screed, tile, wood, and glass — so renovation rarely means demolition.
• Both Atriapol topcoats carry ISO 22196:2011 antibacterial certification (tested against E. coli and S. aureus) and are UV-resistant and non-yellowing.
• The topcoat spec is measured, not promised: over 10,000 wet-abrasion cycles (DIN 53778) and adhesion above 3.6 MPa (EN 1542) — measured on the topcoat that finishes the waterproof-by-assembly system.

How it’s applied

1. 01Match the primer to the surface: Primerquarz on walls, Atriafloor Primer BC on floors — bare concrete, screed, tile, ceramic, wood, MDF, or glass.
2. 02Prepare the substrate first: it must be solid, dry and clean. Completely remove dust, residues, and loose or flaking parts by vacuuming, brushing, or sanding — Primer BC must not go onto a dusty or unstable surface. It anchors to a sound substrate; it does not consolidate a weak or friable one, so a chalky slab needs making good before you prime.
3. 03Roll or brush on one coat and let it set — Primerquarz recoats in 4–6 hours; the epoxy Primer BC waits overnight, 8–12 hours minimum.
4. 04Apply your decorative coat — Titanium, SuperTitanium, or Resina One — over the primed surface. On floors, the Atriafloor One Rasante base coat goes between primer and resin.
5. 05On floors, spread one thin coat of Filler to close the pores of the fresh resin (one coat only, interior only).
6. 06Finish with 2–3 coats of Atriapol, matte or gloss — this sealed assembly, not any single product, is what makes bathrooms and showers work.
7. 07Floors take foot traffic after about 12–14 hours; deep dry follows at 18–24 hours.

Where it works