Drymix Crepifix 450 — Fine Rendering Mortar for Smooth Finishes

Drymix — Crepifix 450 — Fine Rendering Mortar

Drymix Crepifix 450 is a cement and ultra-fine basalt sand rendering mortar designed for smooth, even finishes on block walls, interior and exterior. Its 0.450 mm maximum aggregate size and synthetic fibre content deliver excellent workability and a regular finish with low cracking risk. Suitable for pump machine or manual application. Compliant with EN 998-1 / EN 1015, ISO 9001:2015 certified.

Applications:
– Smooth finish rendering on block surfaces
– Interior and exterior
– Pump machine or manual application

Physical Data:
– Pack: 25 kg bag
– Water: 5.5–6.0 L per bag
– Consumption: ~1.7 kg/m²/mm
– Open time: 45–50 min
– Min thickness per coat: 3 mm | Max thickness per coat: 10 mm
– Fresh density: 1,900 kg/m³ | Max aggregate size: 0.450 mm
– Application temperature: 5°C to 35°C (ideal 21°C)
– Shelf life: 5–6 months sealed

Technical Performance (EN 998-1 / EN 1015 / ISO 9001:2015):
– Compressive strength: ≥ 15 MPa
– Flexural strength: ≥ 3.0 MPa
– Chloride content: 0.02%
– Capillary absorption: < 0.5 kg/m².√h
– Thermal conductivity: 1.28 W/m.K
– Fire reaction: Class A1

Key Benefits:
– Ultra-fine aggregate (0.450 mm) for smooth regular finish
– Contains synthetic fibres for reduced cracking risk
– Excellent tool glide
– Primary pump application method
– Use Primefix Plus between coats if exceeding 10 mm

Application:
Day before — remove all dust, paint residues, mould and efflorescence by dry brushing or high-pressure jet. Ensure surface is plumb. Fix fibre mesh at junctions.
Mixing and application — mix mechanically by pump with 5.5–6.0 L clean water. Never mix on the floor. Project horizontally from bottom. Dress with smoothing rule. Float with polystyrene hawk then sponge finish. Rinse sponge every 1–1.5 m². Cure daily for 3 days.

Precautions:
– Do not apply below 5°C or above 35°C
– Avoid rain or dripping surfaces
– Protect from wind and direct sunlight
– Wear gloves and goggles during handling

Available at QBM Hardware, 59 Royal Road, Phoenix, Mauritius. Tel: +230 5255 1799