Sikafloor® P 1240/50

12 months from production date

The packaging must be stored properly in original, unopened and undamaged sealed packaging, in dry conditions at temperatures between +5 °C and +30 °C.
Store under cover, out of direct sunlight and protect from temperature extremes.
In tropical climates the product must be stored in an air-conditioned environment.

~1.09 kg/l (25 °C)

Part A : Part B = 70 : 30, by weight

+10 °C min. / +40 °C max.

Max. 80 %

Beware of condensation!
The substrate and uncured floor must be at least 3°C above dew point to reduce the risk of condensation or blooming on the floor finish.
Note: Low temperatures and high humidity conditions increase the probability of blooming.

+10 °C min. / +40 °C max.

< 5 % pbw moisture content.
Test method: Sika®-Tramex meter, CM-measurement or Oven-dry-method.
No rising moisture according to ASTM (Polyethylene-sheet).

~40 minutes at 25 °C

~20 minutes at 25 °C

Min. 0.15 kg/m²
(Depending on concrete substrate surface porosity)
Calculated usage assumes constant application thickness on a regular substrate. This figure is theoretical and do not include for any additional material required due to surface porosity, surface profile, variations in level and wastage etc.

• Vacuum recovery shot blasting machine
• Scabbler
• Industrial vacuum
• Masking tape/polythene sheets
• Goggles
• Lighting
• Slow speed drill with suitable paddle
• Industrial gloves

In new construction, concrete to receive high performance epoxy screeds should be designed, mixed and placed in accordance with internationally accepted good practice. The concrete should be at least 28 old unless water reducing admixtures have been used. Sufficient compressive and tensile strength to withstand dynamic loading is required. Laitance or concrete contaminated with oils, greases etc. should be completely removed by captive blasting or mechanical means such as scabbing. Finally ensure the surface is dust free, using an industrial vacuum.

Mixing should be carried out using a slow speed drill, with a suitable paddle, making sure to reach the bottom and sides of the mixing vessel. Mix for at least 1- 2 minutes until uniform consistency is achieved. The components are pre-weighed and should not be split or divided.

Sikafloor® P 1240/50 should be worked well into the substrate by brush or roller. Apply according to stated coverage. If the surface becomes matt, showing absorption, reprime the surface. The chosen epoxy screed should be installed whilst the primed surface is still tacky, within open time (refer to above).
If the primer hardens re-prime within 24 hours.

Remove Sikafloor® P 1240/50 from tools and equipment using a suitable thinner (Xylene / MEK / Acetone) immediately after application. Once hardened, the material can only be removed mechanically.