Sikacrete-213 FMY

Complies to BS 476:Part 21:1987

12 months from date of production

Store in undamaged and unopened, original sealed packaging in cool and dry conditions

~2.0 N/mm²

~0.23 W/m·K at +10 °C

• Minimum 15 mm without reinforcement
• Minimum 25 mm with reinforcement

+5 °C min. / +35 °C max.

+5 °C min. / +35 °C max.

~6 kg/m² for a layer thickness of 10 mm

Pour 10.9 L of potable water into a suitably sized and clean mixing container. Add 1 bag (12 kg) Sikacrete-213 FMY powder slowly while mechanically mixing, using a heavy duty, low speed drill (300–450 rpm) with a mud mixer or other suitable paddle. Mix to a uniform consistency for a minimum of 3 minutes. Mixing can also be done in a mortar mixer setup for a direct feed into wet shotcreting equipment, maintaining the same mixing requirements as when mixing with a drill. Once mixed, if a wetter consistency is required, increase the water content up to a maximum of 13.5 L.

Note: Do not overwater as excessive water will cause severe bleeding, retardation and will reduce the strength and performance of the mortar. Extending (“bulking”) the mortar with additional aggregate or adding any other material into the mix is not permitted as this may impact the fire resistance of the mortar.

At the time of application, the concrete substrate must be SSD (saturated surface dry) with no surface water visible. FRP Composite and steel surfaces should be dry and clean. Resin surfaces must have an acceptable contact surface to which the mortar will adhere. Sikacrete-213 FMY is applied by the wet-spray, dense stream or wet-spray, thin stream method (for vertical/overhead surfaces). Position spray nozzle 18–24 inches (450–600 mm) perpendicular to the surface. This will minimize rebound, create a smoother finished surface and will flatten out when applied at the proper pressure. Allow Sikacrete-213 FMY to set sufficiently before finishing or scraping to the desired lines. When application requires an aesthetic or protective coating, contact Sika’s Technical Services for guidance.

Application equipment should include wet-spray, screw pump systems such as an Aliva® rotor system, Putzmeister®, Bunker® spray concrete system or similar.

To achieve the optimum physical characteristics, the spray nozzle must be handled by a trained and experience operator.

Where a risk of vibration or mechanical damage to the surface exists, the use of light wire mesh reinforcement is recommended in order to prevent any debonding of the mortar layer.

To achieve full potential of any cement based material, curing is essential. This can be carried out with the application of a curing compound such as Antisol®-E or with other curing practices such as covering with polythene sheets or damp hessian for 3 days.

Clean all tools and application equipment with water immediately after use. Hardened or cured material can only be removed mechanically.