Sikadur®-42 (au)

Three Component Epoxy Grout

~24 months from date of manufacture

Store under dry conditions in out of direct sunlight.(minimum 5°C - maximum 35°C)

Approx. 2.0 kg per/lt (2000 kg/1000 lt)

A : B : C= 2 : 1 : 12 by weight

Generally, suitable thickness depends on clearance, distance of flow, ambient and substrate temperatures and pour size.  Range of application typically 10 mm - 60 mm.

7 days full cure @ 23^oC

~ 7.92 litres for 15 kg unit

Mortar and concrete must be older than 28 days (dependent on minimum strength requirements). Verify the substrate strength (concrete, natural stone, etc.). The substrate surface (all types) must be clean, dry and free from contaminants such as dirt, oil, grease, existing surface treatments and coatings, etc. Steel substrates must be de-rusted to a standard equivalent to Sa 2.5. The substrate must be sound and all loose particles must be removed. Substrate must be dry or mat damp and free from any standing water, ice, etc.

Concrete, mortar, stone: Substrates must be sound, dry, clean and free from laitance, ice, standing water, grease, oils, old surface treatments or coatings and all loose or friable particles must be removed to achieve a laitance and contaminant free, open textured surface.

Steel: Must be cleaned and prepared thoroughly to an acceptable quality standard equivalent to SA 2.5 i.e. by blastcleaning and vacuum. Avoid dew point conditions.

Surface and base plate contact area must be clean and sound. For best results, the substrate shall be dry. Remove dust, laitance, oils, grease, curing compounds, impregnations, waxes, foreign particles, coatings, and disintegrated materials by mechanical means, i.e. chip ping with a chisel, blastcleaning, etc. All anchor pockets or sleeves must be free of water. Apply grout immediately to prevent re-oxidizing / rust formation. For optimum results: When grouting areas or equipment that is sensitive to vibration, it is recommended that the contact surfaces are prepared according to the latest edition of the American Petroleum Institute’s Recommended Practice 686 “Machinery Installation and Installation Design” Chapter 7.

Mix components A and B in the component A pail for approx. 30–60 seconds with a Sika mixing spindle attached to a low speed drill (300–450 rpm). Avoid aeration while mixing until the material becomes uniformly blended in colour and viscosity. Place the mixed epoxy into an appropriate mixing vessel. Slowly add the contents of component C (to keep air entrapment at a minimum) dependent on flow requirements (observe the correct mixing ratio) and mix with mixing spindle until uniform and homogeneous (approx. 3 minutes). Mix only that quantity which can be used within its potlife. Never mix Component A and B without adding component C (as the exothermic reaction between A and B alone generates excess heat). Leave  Sikadur®-42 (au) to stand in the normal mixing vessel for 2 – 3 minutes until the majority of entrained air bubbles have dispersed.

Sweep excess grout into appropriate containers for disposal before it has hardened. Dispose of in accordance with applicable local regulations. Uncured material can be removed with Sika Thinner C (NZ). Cured material can only be removed mechanically.