Sikagard-73, Exterior Concrete Sealing
SIKA
Sika is a global leader in specialty chemicals for the construction and industrial sectors. The company develops and supplies innovative products and systems for bonding, sealing, damping, reinforcing, and protecting structures. With a strong focus on sustainability and performance, Sika serves a wide range of applications including concrete production, waterproofing, roofing, flooring, and structural strengthening.
Read moreHardening agent Sikagard®-73 is a two-component hardener with reduced viscosity based on epoxy emulsion, which, due to its consistency, penetrates very easily and deeply into porous concrete or cement supports. After hardening, it hardens the surface, preventing the formation of dust and the penetration of liquids. | |||||||||||||||
Use
Advantages
packPrepackaged units (A+B) of 4 kg (8.82 lb) and 40 kg (88.2 lb). Color
In the case of epoxy resins, they are generally not permanently stable to UV radiation and the weather. | |||||||||||||||
Typical technical data
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ApplicationMixture ratio component A : component B = 1.14 : 2.86 parts by weight Ambient air temperature +10°C (+50 °F) min. / +30°C (+86 °F) max. The relative humidity of the air < 70% During application and during curing, all climatic conditions must be taken into account! Dew point During application and curing, the substrate temperature must be at least 3°C (37 °F) above the dew point. Avoid condensation! Support temperature +10°C (+50 °F) min. / +30°C (+86 °F) max. Lifetime of the mixture ~ 45 minutes at +20°C (4 kg (8.82 lb)) Attention: The end of life of the mixture is not visible! The applied product is usable after Sikagard®-73 can be overcoated after ~ 20 hours at +20°C (+68 °F). Consumption ~ 0.1 - 0.3 kg/m² per applied layer, depending on the absorbency of the support. shuffle Before combining, mechanically mix component A. After the entire amount of component B has been added to component A, mix further for 2 minutes until a homogeneous mixture is obtained. Prolonged mixing should be avoided to minimize aeration of the mixture. Attention: Mix only the material that can be applied during the working time of the material (lifetime of the mixture)! APPLICATION Before application, check the humidity of the support, u.r. and the dew point. It is applied by pouring the material and leveling it with a stencil roller in two perpendicular directions, in a cross, or by spraying. Remove excess material after approx. 15 minutes. Avoid the formation of puddles! Depending on the absorbency of the substrate, a second layer of Sikagard®-73 can be applied by rolling or spraying. |