Technical Data Sheet (TDS)

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ROXOL MINI CHAPE

Self-levelling compound for heavy duty areas and for normal wear

Uses

ROXOL MINI CHAPE self-levelling compound is suitable for smoothing and levelling of screeds, concrete floors and other hard, rigid bases (ceramic tiling and special plasterboards).

ROXOL MINI CHAPE is suitable for heavy-duty areas in commercial locations and for normal wear. It can be applied in layers between 1-20 mm thickness in one work step.

Can be used on traces of hard, sound and water-tight adhesives (existing acrylic, neoprene and bituminous film).
Suitable under parquet/wood floors, plastic and textile coverings, linoleum and tiling.
Not to be used as a wearing surface.
For interior use only.

Benefits

  • Quick hydraulic setting
  • Self-levelling
  • Pumpable
  • Thick layers and sloping finish possible by adding 0.4-0.9 mm sharp sand (i.e. in collective showers and kitchen)
  • Suitable for underfloor heating
  • Suitable under parquet/wood floors

Properties

Physical:

  • Composition: Synthetic resin modified cement powder, low in chromate
  • Colour: Grey
  • Working temperature : Preferably between +8°C and +25°C. Not below +5°C or above +30°C
  • Mixing ratio: 6 litres of water per 25 kg bag
  • Working time/Flow life: 20 minutes at +20°C
  • Set for walking: after 2-3 hours
  • Dry for floor covering: after approx. 48 hours at 1-10 mm thickness; 14 days at  > 10 mm thickness
  • Resistant to castor wheels: at 3 mm or above
  • Compressive strength: After: 28 days = 24 MPa 
  • Suitable for underfloor heating: Yes

Consumption:

1.5 kg/m² per 1 mm thickness

Safety:

IMPORTANT: before embarking on any work involving ROXOL MINI CHAPE the separate Product Safety Data Sheet must be studied carefully by those carrying out the work. Do not breath dust, PREVENT skin and eye contact with powder and particularly the wet material when mixed. Strong alkali when wet – can cause serious eye damage and may cause an allergic reaction resulting in skin disorders.

Shelf life:

Up to 9 months in dry conditions.

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Application

PREPARATION
Subfloors must be sound, of adequate tensile and compressive strength; free from laitance, cracks and structural defects; clean and free from dust, grease, curing compounds, sealers or any other contaminants that would inhibit proper bond.

Substrate residual moisture content must be less than 3%.
For anhydrite slabs, moisture content should be less than 1% for laying textile coverings and ceramic tiles, 0.5% for laying plastic coverings and parquet floors.

All major holes must be filled with ROXOL RENO QUICK.
New asphalt screeds should be shot-blasted first.

Adhesive residues that are hard, sound and water-tight should be mechanically cut-back to a minimum. Soft and weak adhesive residues and smoothing underlayments should be completely removed.

Underfloor heating
Underfloor heating systems must comply with current building regulations. In all cases drying time must be respected. Turn off the heating 48 hours before starting the work. The heating should be turned up to its operating temperatures gradually, in stages over 48 hours after laying the floor covering. Do not apply when underfloor heating is in operation.
 
The following substrates must be pre-treated with suitable Bostik primers and bonding agents:
 

Substrates
Recommended  Primer
Consumption
Remarks
Absorbent concrete and cement screeds
Unidur 10
1:3 water-diluted
100 g per
sqm/layer
Water based primer
Normally absorbent concrete and cement screeds
Unidur 10
1:3 water-diluted
or Unidur N
1:1 water-diluted
 
100 g per sqm
 
Water based primer
Impervious concrete and cement screeds, tiles, terrazzo and other similar dense surfaces, existing semi-flexible tiles
 
Unidur N (pure)
100 g to 150 g
per sqm
Water based primer
Particle boards, plywood all qualities included waterproof or fireproof, plasterboards, bituminous adhesive residues, magnesite screeds, mastic asphalt screeds
 
Impreglue
 
100 g per sqm
 
Solvent based product - Flammable
Wooden floors, particle boards, plywood all qualities included waterproof or fireproof, plasterboards, adhesive residues ( bituminous, acrylic, alcohol based ), old floor paints, old industrial flooring (epoxy or PU), mastic asphalt screeds, existing semi-flexible tiles.
 
 
Primepox
 
 
100 g to 150 g
per sqm
 
 
Water-based epoxy primer
2 components
Wooden floor, particle boards, plywood with gap filling
Primabois
350 to 600 g
per sqm
Water-based cementitious primer
Metal decking
Eponal 336
200 g to 250 g
per sqm
Epoxy damp proof primer- 2 components
Concrete, cement screeds, old ceramic tiles with humidity above 3% or with negative pressure from the basement
 
Eponal 336
 
400 g to 800 g
per sqm
Epoxy damp proof primer-
2 components

PRECAUTION: Before using primer read the primer data sheet carefully and respect our recommendations for ground preparation.
Before proceeding with the subsequent application of the compound, always allow primers to dry in accordance with the technical information. Always allow at least 24 hours drying time for anhydrite screeds.

MANUAL APPLICATION
Pour approx. 6 litres of clean water (water temperature +8° to +20°C) into a clean mixing bucket. Stir the compound powder into water with an electric drill and mixing paddle (<500 rpm) to obtain a lump-free mixture.
After mixing, a maturing time of at least 1 minute is recommended to optimise flow. Remix for 30 seconds. 
The smoothing and levelling compound must be applied to the substrate within the specified working time and smoothed with a stainless steel float. Spread the compound to zero in order to fill the pores, then smooth and spread in a regular manner to the desired thickness.
For thick layers add into the mixture 5 to 8 kg of 0.4 to 0.9 mm sharp sand.

SLOPING FINISH
Add 8 to 10 kg of 0.4 to 0.9 mm sharp sand into the mixture (25 kg of ROXOL MINI CHAPE+ 6 litres of water) until the required consistency is obtained. Size up the slope level, a piece of wood is to be used as a guide by the applicator.
 
MECHANICAL PREPARATION (PUMPABLE)
ROXOL MINI CHAPE can be mixed using a continuous "mixing-pump". In this case the optimum water content is regulated on the basis of product viscosity. This one must be equal to the viscosity obtained by standard mixing of 1 bag in 6 litres of water. (See the technical guidance / procedure relative to the technical system for preparing interior floors for the application of thin floor coverings).
Once mixed, ROXOL MINI CHAPE is pumped and applied to the desired thickness (20 mm maximum in one single continuous coat).
Hint: For thicker layers, using a spiked roller will help air evacuation and improve surface finish.
For all additional information, please contact our technical department.
Protect from excessively rapid drying, e.g. due to direct sunlight, draught or high room temperature. Conversely,  poor airflow and low temperatures will significantly increase drying times. Do not lay floor coverings until the compound is completely dry.
 
REMARKS
Do not use ROXOL MINI CHAPE:
-  on brittle, soft or permanently humid substrates.
-  on old floor coverings (special cases: consult us).
-  do not add water to the compound after it has started to set.
-  do not use on substrates subject to rising damp.
-  do not apply directly on metal substrates

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Packaging

Presentation Bar code Bostik code
bag - 25 kg 3549211128706 122870

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