Ilva TW18 is a clear water-based self-sealer formulated for professional use on timber and engineered wood substrates. It is designed for both light and dark hardwoods, non-resinous softwoods, and fine-line or reconstituted veneers.

TW18 combines the properties of a sealer and topcoat in one product, reducing application time while maintaining excellent clarity, sanding performance, and durability. It delivers a smooth, natural finish with fast drying and low odour, making it suitable for interior furniture, panels, and joinery.

The coating can be used as a single-component (1K) system or as a two-component (2K) system when catalysed with Ilva TXW11 water-based hardener for enhanced chemical and mechanical resistance.

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Application Instructions

Mixing Ratio (2K use):

• By Weight: 100 parts TW18 + 5 parts TXW11 Hardener

• By Volume: 100 parts TW18 + 4.4 parts TXW11

• Pot Life: 2 hours at 20°C

Viscosity (ISO 6 Cup): 94 ± 5 seconds (ready to spray)
Solid Content (mixture): ~22.5%

Thinning:

• If required, thin with up to 5% clean water to adjust flow or viscosity.

• Stir well before and during use to maintain uniform consistency.

Application Methods:

• Suitable for airmix spray, curtain coater, or hand spray application.

• Apply 110–140 g/m² per coat (approx. 4.2–5.4 wet mils).

• Apply 2–3 coats depending on desired film build and finish quality.

Drying & Sanding (at 20°C / 65% RH):

• Dust free: 50 minutes

• Touch dry: 75 minutes

• Hard dry: 5 hours

• Sandable: 3–4 hours

• Recoat time: 2–4 hours between coats

• Maximum time between coats without sanding: 3 hours

• Fully dry: 40 hours at room temperature

• Stackable: 24 hours (with spacers)

Forced Drying (Laminar Flow Cabinet):

• Temperature: 35°C

• Air speed: 1.2 m/s

• Drying time: 120 minutes

• Stackable after 4 hours (with spacers)

Surface Preparation:

• Ensure the substrate is clean, dry, and free of dust, grease, or wax.

• Sand evenly following the grain (P180–P320 grit).

• Moisture content should be 8–14%.

Environmental Conditions:

• Application temperature: 15–30°C

• Relative humidity: 50–70%

• Avoid high humidity or low temperature during drying.

Clean-Up:

• Clean tools and equipment immediately after use with warm water.

• Do not allow material to dry inside spray guns or lines.

Storage Conditions:

• Store indoors between 5°C and 35°C, protected from frost and direct sunlight.

• Always close containers tightly after use.

Note:
For optimal results, confirm suitability and performance with your Superior Timber Coatings technical sales representative before full-scale production.