Nutech Terraglaze 20L

Nutech Terraglaze is a clear coating designed to enhance and protect porous, unglazed, non-vitrified terracotta roof tiles. It is engineered with advanced UV absorbers and silicone additives to deliver a durable, weather-resistant, high-gloss finish that revitalises the natural beauty of terracotta. Where a terracotta roof has lost its sheen but the tiles are sound, Terraglaze brings back the glaze without changing the tile colour.

Key Features

• Higher resin solids and UV light absorbers than standard roof tile coatings
• Complete water and weatherproofing performance
• Anti-fungal additives resist mould, fungus and lichen growth
• Combines hardness and flexibility, resists cracking, crazing, discolouring and blistering
• Self-cleaning surface that sheds dirt
• Easy application by brush, roller or spray with excellent flow and levelling

Specifications

• Appearance: clear brown viscous liquid
• Total solids content: greater than 40%
• Volatile content: less than 60%
• Specific gravity: 0.87
• Solubility in water: not soluble
• Application temperature: between 10C and 35C
• Dry film thickness: greater than 100 microns
• Recommended coats: two
• Coverage: approximately 5 m2 per litre per coat

Application Guidelines

Make sure the surface is clean, dry and free of lichen, moss, grease, oil and dirt, using high-pressure water cleaning above 2000 psi. Do not use acid or caustic cleaning products. Apply Nutech Hypo cleaner at least 2 hours before pressure washing to kill moss, mould, lichen and fungus, then apply two coats of Terraglaze with a brush, roller or spray, allowing sufficient drying time between coats. Full curing takes 7 days under normal conditions.

Applications

• Restoring the gloss on unglazed terracotta roof tiles
• Protecting porous, non-vitrified terracotta from weather and biological growth
• Roofs where the natural terracotta colour must stay visible
• Heritage and residential terracotta roof maintenance

What You Need To Complete The Job

For a coloured membrane over terracotta use Nutech TileFlex, and for a general acrylic membrane use Nutech NuFlex. Repoint the ridge with trade mortar. Browse the full Paint range for the complete system.

Frequently Asked Questions

What does Terraglaze do?

It is a clear high-gloss coating that protects and revives porous, unglazed terracotta roof tiles. It weatherproofs the tile, resists mould and lichen, and restores the natural sheen without changing the tile colour.

How do I know if my terracotta suits it?

Test the surface with a water droplet. If the water is absorbed, the tile is porous and Terraglaze will work. If the water beads on the surface and is not absorbed, the tile is likely vitrified and Terraglaze is not recommended.

How is it applied?

Clean the roof with high-pressure water above 2000 psi, apply a Nutech Hypo cleaner first to kill biological growth, then apply two coats of Terraglaze by brush, roller or spray. Full curing takes 7 days.

How much does it cover?

Coverage is approximately 5 m2 per litre per coat, so a 20 litre pail covers roughly 100 m2 in a two-coat system, depending on the tile profile and porosity.

Can I order for delivery or pickup?

Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.