Sikagard®-63

Epoxy resin

12 months from date of production if stored properly in original, unopened and undamaged sealed packaging.

Store in dry conditions at temperatures between +5 °C and +35 °C.

Part A : 1.6 kg/l
Part B : 1.11 kg/l
Mixed resin: ~ 1.5 kg/l
All density values at +27°C.

Substrate:

(failure in concrete)

*No simultaneous chemical and mechanical exposure.

*acc. IS4631-1968
A = resistant, C = not resistant, D = resistant but with discolouration and/or loss of gloss

Part A : Part B = 3: 1 (by weight)

+8°C min. / +35 °C max.

80% r.h. max.

Beware of condensation!

The substrate and uncured coating must be at least 3°C above dew point to reduce the risk of condensation or blooming on the coating surface.

+8°C min. / +35 °C max.

< 4% moisture content.

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

4 kg mass

Note: Times are approximate and will be affected by changing ambient conditions.

Before applying Sikagard®-63 on Sikafloor®-161 HC:

Before applying Sikagard®-63 on Sikagard®-63

Note: Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity.

Notes: For a theoretical dry film thickness of 100 microns (0.1 mm) approx. 0.15 kg/m² must be applied.
These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and wastage etc.

Sikagard®-63 must be thoroughly mixed using a low speed electric stirrer (300 - 400 rpm) or other suitable equipment.

The concrete substrate must be sound and of sufficient compressive strength (minimum 20 N/mm2) with a minimum pull off strength of 1.5 N/mm2.
The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc.

If in doubt apply a test area first.
 

Concrete substrates must be prepared mechanically using abrasive blast cleaning, scarifying or grinding equipment to remove cement laitance and achieve an open textured surface.

Weak concrete must be removed and surface defects such as blowholes and voids must be fully exposed.

Repairs to the substrate, filling of blowholes/voids and surface levelling must be carried out using appropriate products from the Sikafloor®, Sikadur® and Sikagard® range of materials.

The concrete or screed substrate has to be primed or levelled in order to achieve an even surface.

High spots must be removed by e.g. grinding.

All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush and/or vacuum.

Prior to mixing, stir Part A mechanically. When all of Part B has been added to Part A, mix continuously for 2 minutes until a uniform mix has been achieved.

To ensure thorough mixing pour the material into another container and mix again to achieve a consistent mix.

Over mixing must be avoided to minimize air entrapment.

After mixing allow the material to stand for 3 minutes.

Prior to application, confirm substrate moisture content, r.h. and dew point.

If > 4% moisture content, Sikafloor® EpoCem® Mortars or Sikagard®-720 EpoCem should be applied as a Temporary Moisture Barrier (TMB) system.

Coating: Sikagard®-63, can be applied with a stiff brush or a short piled, solvent resistant roller.

Lamination: The fabric should be embedded in the ‘wet’ Sikagard®-63 using a special profiled roller.

Clean all tools and application equipment with Sika® Colma Cleaner or any suitable thinner immediately after use. Hardened and/or cured material can only be removed mechanically.