Sikadur®-42 HE

Anchoring product for reinforcing steel bar according to EN 1504-6, provided with the CE mark.

Epoxy resin

24 months from date of production

Stored properly in original, unopened, sealed and undamaged packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.

Product cured and tested at temperatures indicated.
Test specimen size: 50 mm × 50 mm × 50 mm

Product cured and tested at temperatures indicated.
Test specimen size: 12.7 mm × 12.7 mm × 25.4 mm

API requirements: ≤ 0,5 % with 2,76 N/mm² load

Component A : B : C = 6 : 1 : (28–35) by weight
Solid / liquid = (4–5) : 1 by weight

Minimum grout depth: 10 mm
Maximum grout depth: 50 mm

*no reduction of fillers; apply only with Mixing Ratio A : B : C = 6 : 1 : 35

Sikadur®-42 HE must be applied at temperatures between +5 °C and +30 °C.
Condition the material by storing in this temperature range for 48 hours before use.

+5 °C min. / +30 °C max.

Substrate temperature during application must be at least 3 °C above dew point to avoid condensation.

+5 °C min. / +30 °C max.

≤ 4 % pbw

(200 g, adiabatic testing)

The pot-life begins when the resin and hardener are mixed. It is shorter at high temperatures and longer at low temperatures. The larger the quantity mixed, the shorter the pot-life. To obtain longer workability at high temperatures, the mixed adhesive may be divided into portions. Another method is to chill components A+B and C before mixing them (only when application temperatures are above +20 °C, and do not chill below +5 °C).

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 matt 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 blast-cleaning and vacuuming). Avoid dew point conditions.
Surface and base plate contact areas 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. chipping with a chisel, grinding, blast-cleaning, etc).
All anchor pockets or sleeves must be free of water. Apply grout immediately to prevent re-oxidising / rust formation.
For optimum results:
When grouting areas or equipment that are 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 5.

Pre-batched units
Mix components A and B in the component A pail for approx. 30–60 seconds with a paddle 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 until uniform and homogeneous (approximately 3 minutes).
Mix only that quantity which can be used within its pot-life.

  
Bulk packing (not pre-batched)
First, stir each component thoroughly. Add the components in the correct proportions into a suitable mixing pail. Mix the components. Use an electric, low speed mixer as above for the pre-batched units.
Never mix components A and B without adding component C (as the exothermic reaction between A and B alone generates excessive heat). Leave Sikadur®-42 HE to stand in the mixing vessel 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. Cured material can only be removed mechanically.