Sopro HE 449 Bonding Emulsion
Sopro HE 449 Bonding Emulsion is a polymer dispersion used as bonding layer for mineral surface fillers and plasters/renders (e. g. Sopro FS 15 plus and Sopro FS 30 maxi floor-levelling compounds). For wet-on-wet application. Also can be used for modification of mortars, screeds and slurries.
Benefits of Sopro HE 449 Bonding Emulsion
• For indoor and outdoor use
• For wet-on-wet application
• Straightforward application
• Serves as bonding layer with good bonding performance
• Coverage: approx. 100-200 g/m² as a bonding layer
Field Of Application for Sopro HE 449 Bonding Emulsion
For application as bonding layer, mix Sopro HE 449 with water in specified proportions and brush generously onto substrate. Subsequent surface filler or mortar coating shall then be applied wet-on-wet. Where a Sopro self-levelling filler is to be subsequently applied, allow a short evaporation time for Sopro HE 449 after brushing on. Do not, however, allow complete evaporation or full drying of priming coat. Apply filler while priming coat is still tacky (check using ‘finger test’). Waiting time may range between 5 and 30 minutes depending on site conditions (temperature, humidity, air movement and substrate suction). As modifier and for preparation of spatterdash, Sopro HE 449 should be added as admixture to mixing water.
Suitable Substrates for Sopro HE 449 Bonding Emulsion
Absorbent mineral substrates: concrete (min. 3 months old), natural and cast stonework, plasterwork/ render and masonry incorporating standardized materials and technically approved products. Smooth and non-absorbent substrates: existing tile and terrazzo coverings, firmly adhering lacquer/varnish coatings etc.
Mix ratio for Sopro HE 449 Bonding Emulsion
As Bonding Layer (water : bonding emulsion)
High-suction – 3 : 1
Absorbent – 2 : 1
Non-absorbent – Undiluted
For Spatterdash (water : bonding emulsion)
10 : 1
As Modifier (water : bonding emulsion)
Medium duty – 3 : 1 – Aggregate size < 4 mm
Heavy duty – 2 : 1 – Aggregate size > 4 mm
Extra-heavy duty – 1 : 1
Available in sizes: Canister: 10 kg & 5 kg. Bottle: 1 kg