Kerakoll Proflow Smooth extended information
Coverage : 1.481 kg/m2 per mm of thickness
Areas of Application
Intended use
Self-smoothing adjustment of irregular and uneven substrates, with rapid setting and drying, compensated shrinkage. Thicknesses from 3 to 12 mm.
Compatible adhesives:
- single and double component organic adhesives
for installing resilient floor coverings Covering materials:
- LVT and design flooring
- vinyl, sheet vinyl and safety flooring
- mosaic tiles
- textiles, rubber, PVC, linoleum, carpet
- raised floors
Substrates:
mineral screeds made with Keracem Eco as binder or pre-mixed product
- cement-based screeds
- calcium sulphate-based screeds
- prefabricated concrete or fresh concrete castings
- ceramic floors
- flooring grade plywood
- flooring grade asphalt/bitumen
- epoxy DPM
Internal floors in domestic, commercial and industrial applications.
Do not use in external applications, or areas that are continually submerged.
Kerakoll Proflow Smooth Instructions for Use:
Preparation of substrates
The substrate must comply with current British standards and industry regulations. In general, substrates must be free of dust, oil and grease, free from any moisture rising, with no loose, flaky or imperfectly anchored parts such as residues of cement, lime, paint coatings and adhesives, which must be completely removed. The substrate must be stable, without cracks and have a functioing DPM within the subfloor. If no DPM is present, a surface epoxy DPM must be applied before installing resilient floor coverings. Kerakoll Proflow Smooth can be used to pre-smooth the floor at 95% RH prior to installing a surface epoxy DPM.
In particular, substrates must be treated with a suitable primer as shown in the table:
Kerakoll Proflow Smooth substrates
Substrate | Primers | Dilution with water |
---|---|---|
Cement-based screeds | Active Prime Fix | Diluted |
Calcium sulphate- based screeds | Active Prime Fix | Neat |
Concretes | Active Prime Fix | Diluted |
Ceramic floors ceramic tiles | Active Prime Fix | Neat |
Flooring grade plywood | Active Prime Fix | Diluted |
Gypsum fibre or fibre-cement panels | Active Prime Fix | Diluted |
Metal substrates | Active Prime Fix | Neat |
Epoxy DPM | Active Prime Fix | Neat |
Flooring grade asphalt/bitumen | Active Prime Fix | Neat |
Preparation:
Pour the pre-measured 5 l bottle of Kerakoll Proflow Smooth liquid into a clean container; then pour in a bag of Kerakoll Proflow Smooth, while shaking. Mix with a mechanical mixer until a smooth, lump- free and smoothing mixture is achieved. Larger quantities of Proflow Smooth may be prepared in suitable mixers. After the first mixing, it is advisable to leave the mixture to rest for approx. 2 minutes and then mix again briefly. Proflow Smooth features a high degree of self-smoothing capacity. Adding extra water does not improve its workability, and may cause shrinkage in the plastic phase of drying and result in less effective final performance with a reduction in surface hardness, surface finish, compressive strength and adhesion to the substrate.
Application
Kerakoll Proflow Smooth is generally applied with a flooring trowel, cam rake or pin level. The use of an aeration tool or spike roller can be used but is not required to further improve the surface finish of Proflow Smooth, but will work to remove entrapped air from the mixture. If an additional application of Proflow Smooth is required once the initial application has been completed, the first installation layer must first be hardened and ready to accept foot traffic and additional application, this is generally after 3.5 hours.
The initial layer of Kerakoll Proflow Smooth must be primed with a neat coat of Kerakoll Active Prime Fix prior to subsequent applications. In the case of low temperatures and high humidity it is advisable to keep the environment ventilated during application and during the hours immediately following application, in order to avoid the formation of condensation on the surface of the smoothing compound during the setting phase.
Cleaning
Residual traces of Kerakoll Proflow Smooth can be removed from tools using water before the product hardens.
NB
Joints: perimeter expansion must be allowed for in the application of self smoothing compounds. Perimeter expansion edging strip must be installed along the whole perimeter of the room, on the walls and on any other vertical elements protruding from the substrate/subfloor. All movement or expansion joints located in the substrate must be honoured.
Kerakoll Proflow Smooth technical data
Appearance | grey pre-mixed |
Apparent volumetric mass | ≈ 1.19 g/dm3 |
Mineralogical nature of inert material | silicate - crystalline carbonate |
Grading | 0-600 μm |
Shelf life | ≈ 12 months from production in the original sealed packaging, protect from humidity |
Mixing water | ≈ 5.0 l bottle / 1 bag 20 kg |
Specific weight of the mixture | ≈ 2.03 g/dm3 |
Self levelling time | ≈ 30 min. |
Temperature range for application | from +5 °C to +30 °C |
Maximum thickness | from 3 to 12 mm |
Foot traffic | ≈ 90 min. |
Waiting time before laying: | |
LVT, vinyl, sheet vinyl, safety flooring and all other resilient floor coverings | ≈ 3.5 hrs |
- resins and paint | ≈ 12 hrs |
Coverage | ≈ 1.481 kg/m2 per mm of thickness |
Kerakoll Proflow Smooth performance – High-Tech
Resistance to: | ||
- compressive after 24 h | ≥ 11 N/mm2 | EN 13892-2 |
- compressive after 7 days | ≥ 15 N/mm2 | EN 13892-2 |
- compressive strength after 28 days | ≥ 16 N/mm2 | EN 13892-2 |
- flexural after 28 days | ≥ 7 N/mm2 | EN 13892-2 |
Classification/conformity | CT–C16–F6 | EN 13813 |
NB2
- Product for professional use
- abide by any British standards and industry regulations
- do not use Proflow Smooth to correct substrate irregularities greater than 12 mm
- do not add other binders, additives or pigments to the mixture
- low temperatures and high relative humidity lengthen drying times and may saturate the environment with negative consequences on the surface consistency of the self-levelling gel
- an excessive quantity of water will reduce product strength and increase the drying time
- before laying hardwood floors, check the residual moisture content is within the accepted parameters given by the flooring manufacturer honour any movement or expansion joints present in the substrate
- if necessary, ask for the safety data sheet
- for unstable wooden types, particular substrates and for any other issues, contact the Kerakoll Worldwide Global Service
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