Sikadur®-42 MP IN

Epoxy resin

12 months from date of production

Store properly in original unopened, sealed and undamaged packaging, in dry conditions at temperatures between +20°C and +40°C. Protect from direct sunshine.

Part A+B+C mixed : 2.2 ± 0.1 kg/liter (at +30°C)

Curing Temperature +30°C

< 1%

Part A : B : C = 5 : 1 : 30 (by weight)

+20°C min.  / +40°C max.

+5°C min. / +35°C max

Beware of condensation !

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

+5°C min. / +35°C max

The pot life begins when the resin and hardener are mixed. It is shorter at high temperatures and longer at low temperatures. The greater 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 parts A+B and C before mixing them (i.e. only when application temperatures are above +20°C).

~ 2200 kg/m³

Mortar and concrete must be older than 28 days (dependent on minimum strength requirements).Verify the substrate strength (concrete, masonry, natural stone). The substrate surface (all types) must be clean and free from contaminants such as dirt, oil, grease, existing surface treatments and coatings etc. Steel substrates must be de-rusted and cleaned. 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 / bricks

Substrates must be sound, clean and free from laitance, 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 by blast cleaning 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. chipping with a chisel, blast cleaning 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 5.

Pre-batched units
Mix components A and B in the component A pail for approx. 30-60 seconds with a paddle type mixer 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 (approx. 3 min).

Mix only that quantity which can be used within its pot life.

When using multiple units, one after the other. Do not mix the following unit until the previous one has been used in order to avoid a reduction in handling time.

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