Good preparation is essential. Without a flat and dry substrate, the Lavasteen Seamless Floor finish cannot adhere optimally. A good start is crucial for successfully applying a seamless floor.

Check the substrate

Check with a moisture meter whether the substrate is dry enough. Ensure that the substrate is:

• Level and flat
• Free from cracks
• Sufficiently dry (always check)
• Uniformly absorbent

Note: tiled walls absorb unevenly (grout vs. glaze). Therefore, pre-treat them according to the technical guidelines.

Applying primer on floor or wall

For applying the primer, use a pile roller. Then choose the correct method depending on the substrate. This forms the first step in applying a seamless floor.

• Absorbent: dilute the primer 1:3 with water.
• Non-absorbent: use the primer undiluted and apply lightly with a cloth.

Allow the primer to dry for 1 day; ventilation accelerates the process.

Step 1 — Prepared working

• Wear gloves and safety goggles.
• Mask the edges carefully.
• Remove tape immediately after applying Lavasteen Seamless Floor.

Step 2 — Applying Lavasteen Seamless Floor to floor and wall

When applying a seamless floor or wall with Lavasteen Seamless Floor, you work in multiple layers. First you mix the components, then you apply the first and second coat.

Mixing components

• Mix component A thoroughly.
• Then add component B.

Ratio: 650 g A + 65 g B per m² (10:1).

First layer — the base

• Apply thinly with a trowel, playfully or evenly.
• For a sleek effect, repeat the same technique in the second layer.

Alternative: work wet-on-wet:

• Apply the first coat roughly.
• After 45–60 minutes, apply a tight second coat for a lively effect.

Second coat — the finish

• Wait 24 hours between two thin coats.
• Use a trowel and optionally a plant spray for a cloud effect.
• Work with a flexible trowel and maintain the grain thickness.

Tip: mist with water after 30–60 minutes for extra depth.

Sanding (optional)

• Use a sander with extraction.
• In the bathroom: sand briefly for anti-slip.
• In living room or kitchen: sand longer for a smooth result.
• If desired, you can apply multiple PU coats. This creates extra protection and smoothness.

Step 3 — PU topcoat for protection

The PU topcoat finally provides protection against yellowing. The milky white layer dries transparent and matt, ideal as the final step when applying Lavasteen Seamless Floor.

Coverage: 80 g A + 16 g B per m² (ratio 5:1).

Application

• Mix electrically for 2 minutes.
• Apply wet-on-wet with a nylon roller.
• Roll dry afterwards for an even finish.

Note: layers that are too thick remain white.

Second (or third) PU coat

• Wait 3–4 hours between coats (maximum 48 hours).
• Wear hospital shoe covers to keep the floor clean.
• Use a hairnet when applying in kitchen or bathroom.

• Clean stains immediately — so do not let water, coffee or spices soak in.
• Do not cover the floor in the first 7 days after applying PU.
• Curing time: the PU topcoat needs 7 days to fully cure.

Would you like to know more about the correct substrate and build-up for a Lavasteen Seamless Floor or wall? Then read our comprehensive explanation about substrate and build-up.