Superior Adhesion for Challenging Overlap Situations

Why overlap areas need a considered primer

Where two floor sections meet or one coating overlaps another, the surface can change abruptly in porosity, texture and absorbency. A single resin layer may bond well to one side but struggle with the other, leading to lifting or flaking at the seam. A universal water-based two-component epoxy primer such as “Epoxyprimer” is formulated to work across concrete, timber, screeds and ceramic tile substrates, helping to create a consistent bond across those difficult transitions.

Surface preparation that supports long-term adhesion

Primer performance depends on the condition of the underlying floor. Before coating:

• Remove dust, oil, wax and loose or flaking material from the overlap area.
• Lightly sand glossy ceramic tiles or sealed timber so the primer can take hold.
• Allow damp or freshly cleaned surfaces to dry fully before application.
• Check absorbent concrete or screed for crumbly patches and repair these first.

Epoxyprimer is usually applied by roller, brush or spatula and needs a full cure of 24–48 hours before the next coat. On very porous substrates, plan for a higher consumption rate within the 100–300 g/m² range to avoid thin, weak spots.

When this matters most

This type of preparation is particularly useful when extending a resin floor across mixed substrates, joining a new screed to an existing slab, or coating timber thresholds and tiled areas within the same space. For concrete-heavy jobs, a one-component methacrylic sealer such as “Resinstone” can provide deep capillary penetration and fast drying; for timber overlap sections that need reinforcement before coating, “EpoxyWood” is designed to penetrate dry wood and create a firmer base.