CONCRETE REPAIR_MULTI SELF-LEVELLING GP_Self-Levelling General Purpose Screed - MCCSA
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MULTI SELFLEVELLING GP 

SELF-LEVELLING GENERAL PURPOSE SCREED 
 

DESCRIPTION

MULTI SELFLEVELLING GP is designed specifically for underlay and smooth flooring applications where a smooth, hard surface is required in preparation for installation of carpets, vinyl, linoleum and other similar floor overlays. 

 

TYPICAL APPLICATIONS

MULTI SELFLEVELLING GP provides a hard-wearing non-dusting floor surface for the locations and facilities where a smooth, hard finish for soft flooring is required. Includes hospitals, schools, homes, offices etc.  

 

ADVANTAGES

  • Hard surface 
  • Improved impact resistance 
  • Self-levelling 
  • Reduced shrinkage 
  • Reduced pin-holing 
  • Ease of application 
  • Excellent coverage 
  • Economical  

 

TYPICAL PROPERTIES

Yield: 14L

Appearance: Light beige finish

Coverage: 4.6m2@ 3mm

Working Time: 10min – 12min

Initial Set Time: 20 min 

Walk-on Time: 5 hours 

Time to sanding: 8 hours 

Application Temperature: 15°C to 25 °C 

Application Thickness: 0.5mm – 10mm 

Flexural Strength: 4 MPa (28 Days) 

Compressive Strength: 25 MPa (28 days) 

Water / 20kg Bag: 5L 

 

WATCH POINTS

  • Do not re-constitute the mix after initial setting has occurred.  
  • Do not apply over floors recently heated via underfloor heating. Allow floors to cool before application.  
  • Apply minimum 10mm nominal screed thickness over underfloor heating elements.  
  • Colour of the screed surface on setting may not be uniform in appearance. 

DIRECTIONS FOR USE

 

SURFACE PREPARATION

Surfaces are to be clean, sound and free of deleterious substances. Remove all laitance, oil, grease, mould oil or curing compound from concrete surfaces using wire brush, bush hammer, scabbler or other plant as appropriate. When repairing damaged concrete, ensure that all loose concrete has removed down to a firm base. Note construction joints that need to be carried through the floor to surface. 

 

PRIMING

Prime floors with MULTI SCREED PRIMER. Allow for penetration into the substrate and remove any excess pooling of primer. MULTI SELFLEVELLING GP can then be applied over the tacky primer but no later than 2 hours after drying of the primer. Do not apply over wet pooled primer as this will create runs in the screed and surface discolouration. 

 

APPLICATION

Mix 5L clean water with 20kg of MULTI SELF-LEVELLING GP well in a bucket using a mechanical mixer. Ensure all lumps have been broken up. Pour over the primed areas and pin rake to the required thickness. Spike roll stubborn rake lines to promote a smooth, level finish. Allow 12-18 hours to set hard. Sand with 100-120 grit sandpaper to remove high points and polish to a hard, dust free surface. 

 

EQUIPMENT CARE

All tools should be cleaned with water immediately after use. If delayed, equipment will need mechanical action to clean or be discarded. 

 

PACKAGING

Supplied in 20kg bags.

 

QUALITY ASSURANCE

Multi Construction Chemicals South Africa (PTY) Ltd production and testing programs comply with all local and international testing standards. 

 

REVISION: 3.1 

The information supplied is believed to be reliable. As we do not have any control over the processing or application of the product we cannot guarantee the results to be obtained.

Users assume all risks and liability resulting from the use of this product and must confirm suitability thereof by conducting their own tests.

No guarantee is expressed or implied. Liability to the replacement of faulty material.

FOR PROFESSIONAL USE ONLY.