Product Data Sheet
Edition 7, 2004
Sika® -2
Extra Quick Setting Waterproofing
Compound
Product A ready to use waterproofing liquid. When mixed with cement, sets in 15-20
seconds to seal severe water infiltrations.
Description
Sika® -2 is used to seal severe waterproofing infiltrations in concrete, rock and
Construction
Uses
masonry, thus allowing a Sika® -1 render to be subsequently applied.
Sika® -2 is part of a range of internationally, used normal and quick setting
waterproofing admixtures.
Technical Data
Form Viscous Alkaline liquid
Colour Red
Density 1.27 Kg/l
PH Value 12
Packaging 20Kg pails
Storage Unaffected by frost down to -10 °C
Shelf Life 12 months from date of production if stored properly in original unopened packing.
` 1) Concrete: roughened and cleaned.
Rock: cleaned, loose parts removed.
2) Infiltration concentrated at a few points.
3) Preliminary waterproofing with Sika® -4a cement paste.
®
4) Plastic tube set in Sika -4a cement paste.
5) Water discharging through plastic tube.
6) Two coat Sika® -1 rendering on roughened surface of preliminary waterproof coat
(or 1-2 Gunite layers).
7) After removal of plastic tube, plugging of discharge holes with Sika® -2 or
Sika® -4a cement paste.
8) Final Sika-1 coat and surface finish (or finish Gunite layer).
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Application
Dosage One part Sika® -2 is mixed by volume with two parts of Portland cement, (approx.
40% by weight). Dilution is not recommended.
Surface Preparation Remove all loosely adhering particles. Use Sika® -4a to seal off extensive areas
whilst still allowing the water to infiltrate.
Mixing Mix and use immediately
Place Sika® -2 into a rubber bowl and then add the fresh cement.
Stir briefly for a few seconds. From the paste by hand into a tapered plug and place
it immediately into the hole pressing firmly for 15 seconds until hard.
Important Use only fresh Portland cement.
Safety Instructions
Ecology Do not dispose of into soil or water but according to local regulations.
Transport Corrosive 8/46 c).
Safety precautions Wear rubber gloves and goggles at all times.
Apply barrier cream to arms. If splashing into eyes occurs, rinse immediately and
thoroughly with clean water or boric acid solution.
Store in well labelled containers.
Toxicity Class 3, under relevant health and safety codes.
Legal notes The information and in particular the recommendations relating to the application and end-use of Sika
products, are given in good faith based on Sika’s current knowledge and experience of products when
properly stored, handled and applied under normal conditions. In practice, the differences in materials,
substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for
a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either
from this information, or from any written recommendations, or from any other advice offered. The
proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of
sale and delivery. Users should always refer to the most recent issue of the technical data sheet for the
product concerned, copies of which will be supplied on request.
For further technical information, please consult our technical service department.
Sika Egypt for Construction Chemicals
El Abour City Tel :+202- 6100714/15/16/17/18
1st industrial zone (A) Fax :+202- 6100759
Section # 10 Block 13035, Mob :+2012- 3908822/55
Egypt www.sika.com.eg
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