NOVA Tuff Base
Gypsum Undercoat Plaster for Low to Moderate Suction Substrates
NOVA Tuff Base
Gypsum Undercoat Plaster for Low to Moderate Suction Substrates
NOVA Tuff Base is a high-quality gypsum undercoat plaster specially formulated for smooth, dense, or low- to medium-suction backgrounds where standard undercoat plasters may not adhere adequately. It is designed to provide excellent workability, easy spreading, and smooth finishing before applying a 2 mm skim coat of finishing plaster.
Features & Uses
Features:
- Ideal for dense, low- to medium-suction backgrounds
- Excellent workability with a fine, smooth trowelled finish
- Quick setting for faster project completion
- Strong, reliable adhesion to bricks, blocks, concrete/RCC, and cement surfaces, enhanced with a bonding agent where required
- Suitable for patching, chasing, deep fills, repairs, and multi-coat builds
- Consistent drying and setting with minimal cracking or shrinkage
- Reliable, professional performance for new construction and refurbishment
Uses:
- Smooth or low- to medium-suction substrates
- Concrete, including precast, cast in-situ, and normal ballast concrete
- Plasterboard
- Dense aggregate blocks
- Engineering bricks
For more information, refer to the TDS.
Technical Data
- Off-white, free flowing powder
- Wall application thickness: 11 mm
- Ceiling application thickness: 8 mm
- Working time: Max. 80 minutes
- Set time: Min. 120 minutes
- Water required: 13.0 to 14.0 litres per 25 kg
- Coverage:
- 2.75 to 3.0 m² / 25 kg at 11 mm thickness
- 3.8 to 4.1 m² / 25 kg at 8 mm thickness
- Reaction to Fire: A1
- Bond strength: ≥ 0.3 MPa
- Packaging: 25 kg Bag
Note: Temperature, humidity, and site conditions may affect product performance. For technical details, refer to the TDS.
Compliance & Quality
- CE marked
- Conforms to EN 13279-1: 2008, Type B4/20/2 and C3/20
- AVCP System 4
- Manufactured under an ISO 9001:2015 certified quality management system
For details, refer to the UK DoP. Where applicable, an EU DoP is available on request.
Health, Safety & Handling
- Follow safe manual handling practices in accordance with HSE guidance and the Manual Handling Operations Regulations 1992 (MHOR)
- Employers and operatives should work together to minimise handling risks and maintain a safe working environment
- Do not apply to frozen surfaces. Protect freshly applied plaster from rapid drying and avoid exposing set plaster to temperatures above 49°C
- Keep out of reach of children
- Segregate plaster from non-gypsum waste for recycling where possible, and dispose of responsibly in accordance with local authority requirements
For health, safety, and handling guidance, refer to the UK SDS. Where applicable, an EU SDS is available on request.
Shelf Life & Storage
- Shelf life: 12 months when stored correctly
- Store in a cool, dry, well-ventilated place away from moisture, heat, or direct sunlight
- Keep bags on dry, stable platforms and away from damp areas
- Reseal opened bags tightly to help prevent moisture ingress
For more information, refer to the TDS.
