Roff New Construction Adhesive (NCA) – T01

Roff New Construction Adhesive (NCA) – T01 is a high-quality, grey cement-based, polymer-modified thin-set tile adhesive designed by Pidilite Industries. Specially formulated for brand-new tiling projects, it offers an engineered, reliable replacement for traditional sand-cement mortar.

Roff NCA is designed to securely fix high-porosity tiles—such as ceramic, clay, terracotta, and regular-sized quarry tiles—on internal floors and walls. It complies strictly with IS 15477:2019 Type 1 'T' standards for interior thin-bed tile applications.

Key Features & Benefits

• No Hollow Sounds & Crack-Free Tiles: Traditional cement mixes often shrink, leading to hollow pockets and tile cracks. Roff NCA ensures total surface coverage, preventing tiles from debonding or cracking.
• Excellent Sag Resistance (Type 1 'T'): The 'T' designation stands for slip resistance, making it highly efficient for top-down, non-slip vertical wall applications.
• Self-Curing Properties: Unlike raw cement mortar, this adhesive does not require intensive, messy water curing post-installation, reducing labor costs and timeline strain.
• Water Resistant: Ideal for internal dry areas as well as internal wet zones like residential bathrooms, kitchens, and utilities.
• Low VOC Content: Eco-friendly and safe for indoor air quality, contributing to a healthy living environment.

Primary Applications

• Materials to Fix: All types of high-porosity ceramic tiles, regular-sized terracotta, clay tiles, and brick masonry. It is also highly recommended for standard vitrified floor installations.
• Suitable Substrates: Can be applied seamlessly over cement-based screeds, sand-cement plasters, and smooth concrete surfaces.
• Areas of Use: Residential flats, commercial shops, internal corridors, indoor dry areas, and household wet zones.

Technical Specifications

Understanding the Roff Tile & Stone Adhesive Range (Variants)

While Roff NCA (T01) is the flagship budget-friendly solution for new, standard indoor construction, the Roff tile adhesive ecosystem features distinct variants tailored to handle specialized weights, materials, and substrates:

1. Roff New Construction Adhesive (NCA) - T01 (Grey): The base standard. Perfect for standard ceramic floor/wall tiling and basic vitrified floor tiling on new indoor surfaces.
2. Roff Non-Skid Adhesive (NSA) - T02 (Grey): Highly polymer-modified with increased grab. Best for challenging internal wet zones (bathrooms/kitchens) and standard semi-vitrified "tile-on-tile" applications.
3. Roff Non-Skid Adhesive (NSA) - T09 (White): A specialized white-cement version of the T02 adhesive, ideal for glass mosaics, premium glazed tiles, or translucent wall stones where a grey backing would cast a shadow.
4. Roff Vitrofix Adhesive - T03 (Grey): Formulated specifically to handle the dense, zero-porosity nature of all sizes of internal vitrified tiles, porcelain, and heavy natural stones (marble, granite) on floors and walls.
5. Roff Vitrofix Adhesive - T04 (White): The premium white variant of the T03 adhesive line. It provides a clean base for light-colored marbles, designer glass backsplashes, and translucent stones.
6. Roff Extrofix Adhesive - T07: A high-performance adhesive engineered to sustain external thermal shocks, rain, and environmental stress. Used for external tile applications and semi-commercial layouts.
7. Roff Extrofix Ultra Adhesive - T20: The ultimate high-performance premium adhesive system. Engineered specifically for heavy exterior wall claddings, large-format slabs ($600\text{mm}\times600\text{mm}$ and above), and areas prone to continuous structural vibrations (like lift lobbies or heavy foot traffic zones).
8. Roff Master Fix Adhesive - T29: A multi-surface, highly flexible specialty adhesive used when tiles or engineered stones need to be fixed onto drywalls, plywood, metal sheets, gypsum boards, or cement boards.

Application Instructions for Roff NCA (T01)

1. Preparation: Ensure the base substrate is fully cured, clean, structural sound, and free of dirt, oil, or laitance. Dampen the dry or dusty surface slightly before beginning.
2. Mixing: Slow-mix the powder into clean water (approx. 5–6 liters of water for a 20/30 kg bag ratio) until a uniform, lump-free paste is generated. Allow the paste to rest for 2-3 minutes.
3. Spreading: Apply the adhesive to the substrate using a notched trowel at an even thickness of 3–6 mm. Do not spread more than what can be tiled within 15–20 minutes.
4. Fixing: Press the tile firmly into the ribbed adhesive bed with a slight twisting motion. Tap gently using a rubber mallet to ensure 100% bed coverage and correct leveling.