Surface preparation for Terrastone
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      Terrastone as a Worktop in Kitchens and Offices

      Production and installation of worktops made of Terrastone Floor Rustique on wood-based or plastic-coated substrates, including surface preparation, system build-up, sealing, and important usage notes.

      Suitable Substrates

      Suitable base materials include:

      • Wood-based panels such as MDF

      • Plastic-coated panels (e.g. kitchen worktop panels)

      Important substrate notes

      • Raw wood-based panels must be sealed to prevent wood extractives from bleeding through.
        Without proper sealing, discoloration of the Terrastone surface may occur later.

      • Solvent-based primers are recommended for sealing raw wood substrates.

      • Plastic-coated panels also require a bonding primer; in this case, water-based primers like can be used.

      • Joints in wood-based panels cannot be reinforced.
        All joints must be structurally bonded (load-bearing). Simple gluing is not sufficient.

      Terrastone System Build-Up

      1. Priming

      • Material: Terra Base 4

      • Consumption: approx. 0.25 kg/m²

      • Coverage: 2.5 kg for approx. 6–16 m² (depending on absorbency)

      2. Mixing Terrastone Rustique Floor

      • Materials:

        • Terrastone Rustique Floor (15 kg)

        • Liquid Rustique Floor (5 litres per 15 kg)

      • Up to 15% additional liquid may be added if a thinner consistency is required.

      • Tip: When working alone, mix only about one third of a bucket at a time.

      Optional (first layer only):

      • Terra Base 12 Fiberglass

      • Dosage: 1 sachet (250 g) per 15 kg bucket
        → Increases resistance to micro-cracks

      3. Application – First Layer

      • Apply with a Venetian trowel

      • Roughly smooth

      • Layer thickness: 1–2 mm

      • Drying time: approx. 5–6 hours at 20 °C

      4. Intermediate Primer

      • Material: Terra Skin 16

      • Dilution: 1:2 with water

      • Application: 1 coat

      • Consumption: approx. 0.12 l/m²

      • Coverage: 1 litre for approx. 15 m²

      5. Application – Second Layer

      • Apply with a Venetian trowel

      • Roughly smooth

      • Layer thickness: 1–2 mm

      Smoothing technique (recommended):

      • Allow material to slightly set

      • Place smooth Styrodur boards on the surface

      • Once the material no longer sticks, smooth with the trowel

      • Move boards as needed

      Total consumption (2 layers): approx. 5–6 kg/m²

      Sealing / Care System

      1. Initial impregnation

        • Terra Skin 16, diluted 1:2 with water

        • Remove excess after 5 minutes

        • Coverage: approx. 20–22 m² per litre

        • Drying time: approx. 2 hours

      2. alternative oil treatment

        • Terra Skin 3N Natural Oil

        • For white Terrastone: Terra Skin 3NB

        • Remove excess after 20–30 minutes

        • Drying time: approx. 24 hours

      3. Wax finish

        • Terra Skin 10 Classic Wax

        • Apply with a plastic trowel and polish thoroughly

      Important Final Notes ⚠️

      • Not suitable for sinks: standing water may cause long-term damage.

      • Not cut-resistant: durability is comparable to an oiled wooden worktop.

      • Always use cutting boards and protective pads.