Sikadur®-41+

• Contributes towards satisfying Indoor Environmental Quality (EQ) Credit: Low-Emitting Materials under LEED® v4.

• Contributes towards satisfying Materials and Resources (MR) Credit: Building product disclosure and optimization — Environmental Product Declarations under LEED® v4.

• Contributes towards satisfying Materials and Resources (MR) Credit: Building Product Disclosure and Optimization — Material Ingredients under LEED® v4.

• Environmental Product Declaration (EPD) in accordance with EN 15804. EPD independently verified by Institut für Bauen und Umwelt e.V. (IBU).

• VOC emission classification GEV Emicode EC1^plus.

• CE marking and declaration of performance based on EN 1504-3: Products and systems for the protection and repair of concrete structures — Structural and non-structural repair.

   

Epoxy resin, selected fillers and quartz sand.

24 months from date of production.

The product must be stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Always refer to packaging.

Refer to the current Safety Data Sheet for information on safe handling and storage.

Beware of condensation.

Substrate temperature during application must be at least +3 °C above dew point.

Substrates must be dry or matt damp (no standing water).

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. Alternatively chill components A+B before mixing them (although not below +5 °C).

2.00 kg/m² per mm of thickness.

Note: Consumption data is theoretical and does not allow for any additional material due to surface porosity, surface profile, variations in level, wastage or any other variations. Apply product to a test area to calculate the exact consumption for the specific substrate conditions and proposed application equipment.

CONCRETE, MASONRY, MORTAR AND STONE

Concrete and mortar must be at least 28 days old.

Substrates must be sound, clean, dry or matt damp with no standing water. Substrates must also be free from contamination 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 all contaminants such as dirt, oil, grease, coatings and loose friable material.

WOOD

Surfaces must be sound, clean, dry and free of all contaminants such as dirt, oil, grease, coatings and loose friable material.

Reduced adhesion performance

Surface contamination such as dust and loose material, including that caused during substrate preparation, can reduce the product's performance.

Thoroughly clean all substrate surfaces before application of the product by vacuum or dust removal equipment.

CONCRETE, MASONRY, MORTAR AND STONE

Suitable techniques for substrate preparation include the following:

• Abrasive blast cleaning.

• Needle gunning.

• Light scabbling.

• Bush hammering.

• Grinding.

Prepare the substrate mechanically using a suitable technique.

The substrate has an open textured gripping surface profile.

STEEL

Suitable techniques for substrate preparation include the following:

• Abrasive blast cleaning.

• Rotating wire brush.

• Grinding.

Prepare the substrate mechanically using a suitable technique.

The substrate has a bright metal finish with a surface profile to satisfy the necessary tensile adhesion strength requirement.

WOOD

Prepare the substrate by planing, sanding or using other suitable equipment.

Maintaining workability and handling time.

When using multiple units during application, do not mix the following unit until the previous one has been used.

PRE-BATCHED UNITS

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 (maximum 300 rpm).

• 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.
• While mixing Parts A + B, gradually add Part C (aggregate).
• IMPORTANT: Do not mix excessively. Mix until a uniform consistency is achieved.
• To ensure thorough mixing pour materials into a clean container and mix again for approximately 1 minute.

REPAIR

Preconditions:

Prior to application, confirm dew point conditions before and during application.

• On damp prepared concrete substrates, always work the Product well into the substrate.
• For vertical or overhead applications use Sikadur®-31+ as a primer to improve the bond.
• Place temporary formwork as required.
• Apply mixed material to the prepared surfaces with a spatula, trowel or by gloved hand.

For repairs greater than 60 mm deep, the Product must be applied in layers.

• Scratch the surface of the freshly applied intermediate layer to form a key for the subsequent layer.
• Apply successive layers once the previous layer has hardened.
• If the time between layers is going to be more than 2 days, blind the wet mortar to excess with quartz sand immediately after application.

JOINT FILLING AND CRACK SEALING

• Apply mixed material to the prepared surfaces with a spatula or trowel.

Clean all tools and application equipment with Sika® Thinner C immediately after use. Hardened material can only be removed mechanically.