Sikadur-42 HF Very High Flow Epoxy Resin Grout
Sikadur-42 HF is a pourable, multi-functional, high-density epoxy grout designed for dry, wet, and underwater applications. ProTrade Warehouse offers this cost-effective and high-performance Sika grout at competitive trade prices for experienced professionals.
Uses
Sikadur-42 HF may only be used by experienced professionals. As a grout for manufacturing plants and civil engineering applications:
- Crane rails
- Machine bedding and baseplates
- Holding down bolts
- Stanchions
- Starter bars
- Cavity filling
- Bridge bearings
Sikadur-42 HF is also suitable for underwater work, offering excellent adhesion to various substrates and is highly insoluble in water, making it safe for specialist diver use. It can be used for crack injection (0.5mm to 40mm, non-flowing cracks), pile jacketing with prepacked aggregate, as a bonding bridge for underwater concreting, and as a pipeline jointing material.
Features
- Cost-effective epoxy grout.
- Suitable for dry, wet, underwater, or marine applications.
- Highly insoluble in water and suitable for application by specialist divers.
- Applicable at low temperatures.
- High mechanical strengths.
- High flow characteristics.
- Supplied in factory proportioned units.
- Shrink-free.
- Can be bulked out with aggregate for thicker pour applications.
- Excellent chemical resistance to water, sea water, waste water.
Product Information
Packaging: 18 kg net pre-proportioned kit
Shelf life: 24 months from date of production
Storage conditions: Stored properly in original and unopened, sealed and undamaged packaging, in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight.
Density: 2.0 kg / litre approx.
Viscosity: 2,500 to 3,000 mPa.s approx. (+23°C)
Shore D Hardness: 81 approx. (10 days at +20 °C)
Application Information
Mixing ratio: A : B = 8 : 1 by weight, A : B = 3.6 : 1 by volume
Consumption: 2.0 kg/m² approx. per mm thickness
Yield: 18 kg kit yields approximately 9 litres of grout
Layer thickness: 0.50 mm min. / 40 mm max.
Ambient air temperature: 5 °C min. / 35 °C max.
Pot Life: 50 minutes approx. @ 20 °C for 1.8 kg mix, 35 minutes approx. @ 20 °C for 18 kg mix (Pot life depends on storage temperature before mixing)
Curing time: 24 hours (+20 °C)
Important Considerations
- Do not part mix kits.
- Only mix as many kits as can be applied within the stated pot life.
- Do not dilute the product with solvent.
- Minimum thickness 0.5mm, maximum thickness 40mm.
- Pot life depends on the storage temperature before mixing.
- Minimum age of new concrete, 4 to 6 weeks.
- Sikadur-42 HF will rise in temperature when mixing.
- Refer to the Sikadur 42 Method statement for guidance.
- Do not apply underwater at depths greater than 5m without technical consultation.
Application Instructions
SUBSTRATE QUALITY
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.
SUBSTRATE PREPARATION
Surface and base plate contact area must be clean and sound. For best results, the substrate should 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. Blast cleaning metal base plates to an acceptable quality standard equivalent to SA 2.5 for maximum adhesion. Apply grout immediately to prevent re-oxidizing.
Forming
The consistency of the Sikadur-42 HF epoxy grout system requires the use of permanent or temporary forms to contain the material around base plates, for example. In order to prevent leakage or seepage, all of these formers must be sealed. Apply polyethylene film or wax to all forms to prevent adhesion of the grout. Prepare the formwork to maintain more than 100 mm liquid head to facilitate placement. A grout box equipped with an inclined trough attached to the form will enhance the grout flow and minimize air encapsulation.
MIXING
Prior to mixing the components should be stored at 15-20°C for the previous 24 hours. Mix all of component A (Grey Resin) with all of component B (Hardener) using a slow speed drill (maximum 600 rpm) and windmill stirrer. Mix until a homogeneous and streak-free mixture results. If placing underwater allow to stand for 10-15 minutes after mixing before placing.
APPLICATION METHOD / TOOLS
Mixed Sikadur-42 HF should be poured into the void or formwork from one side to avoid the entrapment of air. Continuous grout flow is essential and there must be sufficient grout available before pouring.
Machine Base Plates & Crane Rails: An adequate head must be maintained to ensure continuous flow. Continue pouring until the grout rises above the level of the plate. At no time during application should the grout head be less than 50 mm above the level of the plate. This, as well as adequate vent holes, is essential to ensure no air is trapped.
Anchor Bolts and Dowels: For bolts placed into preformed holes, fill the hole with Sikadur-42 HF and place into the grout. Higher strengths achieved if placed using a tremmie placing technique rather than free fall through water.
When using Sikadur-42 HF as a bonding bridge the material may be applied by brush or gloved hand. Ensure an even continuous film. Place fresh concrete immediately.
If injecting cracks, pressure equipment may be used (eg. liquid tight bulk sealant gun; hand pumped grease filling equipment and high pressure pumping equipment may also be used).
Large voids may be filled by pre-filling with clean aggregate. Where possible use coarse rounded river gravel not smaller than 8mm and pouring or injecting/ tremmieing Sikadur-42 HF into the void, displacing the water (i.e. preplaced aggregate technique).
CLEANING OF EQUIPMENT
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 Colma Cleaner. Cured material can only be removed mechanically.
Order Sikadur-42 HF Very High Flow Epoxy Grout from ProTrade Warehouse for your demanding grouting applications in dry, wet, or underwater environments. Benefit from our trade prices and fast Australia-wide delivery, with convenient pickup options available.
