APPLICATION INSTRUCTIONS SUBSTRATE QUALITY CONCRETE

Concrete must be at least 28 days old. Substrates must be sound, clean, dry or matt damp but free of standing water. Substrates must be free of contaminants such as ice, dirt, oil, grease, coatings, laitance, efflorescence, surface treatments and loose friable material. STEEL Surfaces must be sound, clean, dry and free of contaminants such as dirt, oil, grease, coatings and loose friable material. SUBSTRATE PREPARATION IMPORTANT Reduced adhesion due to surface contamination Surface contaminants such as dust and loose material, including the contaminants generated during substrate preparation, can reduce the Product’s performance. Before applying the Product, clean thoroughly all substrate surfaces using vacuum or dust removal equipment. 1.

CONCRETE

Suitable techniques for substrate preparation include the following: ▪ Abrasive blast cleaning ▪ High-pressure water blasting ▪ Needle gunning ▪ Scabbling ▪ Bush hammering ▪ Grinding Prepare the substrate mechanically using a suitable technique. 1. Clean any pockets or holes for structural fixings to remove any debris. 2. The substrate has an open-textured, gripping surface profile. STEEL Suitable techniques for substrate preparation include the following: ▪ Abrasive blast cleaning ▪ High-pressure water-blasting ▪ Grinding Prepare the substrate mechanically using a suitable technique. 1. The substrate has a bright metal finish with a surface profile to satisfy the necessary tensile adhesion strength requirement.

SHUTTER FORMWORK

Preconditions Where formwork is to be used, all formwork must be of adequate strength, treated with release agent and sealed to prevent leakage. Prepare the formwork to maintain a minimum 100 mm grout head to assist with placement. 1. Note: A grout box equipped with an inclined trough attached to the formwork will also improve the grout flow and reduce air voids. MIXING IMPORTANT Poor workability and unfavourable handling time due to wrong mixing When using multiple units during application, do not mix the following unit until the previous unit has been used.

IMPORTANT

Mix full units only. Prior to mixing all parts, mix Part A (resin) briefly using a mixing spindle attached to a slow speed electric mixer (max. 300 rpm). 1. Add Part A to Part B (hardener) and mix Parts A+B continuously for at least 3 minutes until a uniformly coloured smooth consistency mix has been achieved. 2. While mixing Parts A + B, gradually add Part C

4. APPLICATION METHOD / TOOLS IMPORTANT

Damage due to excessive long-term load Sikadur® resins are formulated to have low creep under long-term load. However, due to the creep behaviour of all polymer materials under load, the longterm structural design load must account for creep. Ensure that the long-term structural design load is lower than 1/4 to 1/5 of the short-term failure load. 1. Consult a structural engineer for calculating the admissible load for the specific application.

2. GROUTING

IMPORTANT Maintain a 100 mm grout head to avoid trapping air. Pour the mixed grout into the prepared formwork ensuring continuous grout flow during the complete grouting operation. 1. Where formwork has been used for grouting base plates and machine bases, place sufficient epoxy grout in the formwork to rise slightly above the underside (3 mm) of the grouted base.

2. FLOWABLE REPAIR

Immediately after mixing, pour the mixed material into the formwork or repair area. Ensure a continuous flow. 1.

ADDITIONAL LAYERS Apply additional layers in successive pours once each layer has cooled and hardened sufficiently. 1. Note: The last layer of a multiple pour must be at least 40 mm. CLEANING OF TOOLS Clean all tools and application equipment with Sika® Colma Cleaner immediately after use. Hardened material can only be removed mechanically

. LOCAL RESTRICTIONS

Note that as a result of specific local regulations the declared data and recommended uses for this product may vary from country to country. Consult the local Product Data Sheet for exact product data and uses.

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 the products when properly stored, handled and applied under normal conditions in accordance with Sika’s recommendations. 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 user of the product must test the product’s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request.