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Sika® Hibond
STRUCTURAL BONDING AGENT BETWEEN OLD AND NEW CONCRETE
DESCRIPTION
Epoxy based, two component structural bonding agent. Sika® Hibond compiles with ASTM 881 – 87 Type II Grade 2 Class B and C.
USES
Sika® Hibond may only be used by experienced professionals. Sika® Hibond is a structural bonding agent applied between old and new concrete surfaces during casting of roof slabs, retaining walls, water tanks, columns,extension of balconies, etc
CHARACTERISTICS / ADVANTAGES
Long pot life and open time allows sufficient time for placement of new concrete ▪ ▪ Can be applied on moist surface also Once the two components of the material is mixed the material must be used within approx 4 hours.
PRODUCT INFORMATION
Chemical Base Chemical Base : Epoxy Packaging 600g System Part A: 400g Part B: 200g Colour Part A: White liquid Part B: Blackish brown liquid Shelf Life 12 months from date of production Storage Conditions Store properly in original unopened, sealed and undamaged packaging, in dry conditions at temperatures between +5°C and +40°C. Protect from direct sunshine. Density Mixed Density 1.68 kg/l at 30ºC
TECHNICAL INFORMATION
Compressive Strength > 55 MPa 7 days @ +300 C ASTM C881 Tensile Strength ~18-20 MPa 14 days @ +300 C ISO 527 Shear Strength > 10 MPa 14 days @ +300 C ASTM C882
APPLICATION INFORMATION
Consumption 1pack of 600g covers approximately 12-30 sqft depending on roughness and porosity of substrate (0.200- 0.500 kg/sqm depending on roughness and porosity of substrate) Pot Life (According to FIP 5.1) Temperature Sika® Hibond 300 C 4-5 hours The potlife 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 potlife. To obtain longer workability at high temperatures, the mixed adhesive may be divided into portions. Another method is to chill parts A+B before mixing them (not below +5°C).
SUBSTRATE QUALITY
Mortar and concrete must be older than 28 days (dependent on environment and strength). Verify the substrate strength (concrete, mortar). The substrate surface (concrete, mortar) must be clean and free from frost standing water. Concrete substrate must be sound and all loose particles must be removed.
SUBSTRATE PREPARATION
Concrete, mortar: Substrates must be sound, dry, clean and free from laitance, ice, standing water, grease, oils, old surface treatments or coatings and all loosely adhering particles to achieve a laitance and contaminant free, open textured surface. Cement laitance must be removed and the surface to be treated must be mechanically roughened Steel: Must be cleaned and prepared thoroughly to an acceptable quality i.e. by wire brushing, blast cleaning or vacuum.
MIXING
Part A : Part B = 2 : 1 (by weight) Prebatched Mixing Time Pre-batched units Mix parts A+B together for at least 3 minutes with the provided spatula until the material becomes smooth in consistency and a uniform grey colour. Avoid aeration while mixing. Then, pour the whole mix into a clean container and stir again for approx. 1 more minute at low speed to keep air entrapment at a minimum. Mix only that quantity which can be used within its potlife.
APPLICATION METHOD / TOOLS
Application Conditions / Limitations After mixing, apply directly to the prepared substrate by brush, roller. On damp surfaces, ensure that it is well brushed in. Pour new concrete within 4-5 hours, as long as material is still tacky
FURTHER DOCUMENTS
Value Base All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control.
BASIS OF PRODUCT DATA
All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control.
LOCAL RESTRICTIONS Please note that as a result of specific local regulations the declared data for this product may vary from country to country. Please consult the local Product Data Sheet for the exact product data. ECOLOGY, HEALTH AND SAFETY For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safetyrelated data.
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 itsproducts. 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.
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