Capatect CarbonSpachtel X-TRA 900

Suitable Substrates

Brickwork and concrete with or without render, or substrates as specified in the ETICS approvals / type approvals (Bauartengenehmigungen).

Substrate Preparation

Mask window sills and add-on parts. Carefully cover glass, ceramics, clinker, natural stone, painted, glazed and anodised surfaces as well as surfaces to be protected.

The substrate must be frost-free, solid, dry, free of grease and dust and, in dowelled systems, have sufficient load-bearing capacity for the use of anchors. Contamination and substances with a separating effect (e.g. formwork oil) as well as protruding mortar ridges must be removed. Damaged, flaking paintwork and decorative render must be removed as far as possible. Hollow areas of rendering must be knocked off and rendered flush with the surface. Highly absorbent, sanding or flouring surfaces must be thoroughly cleaned down to the solid substance and primed.
The compatibility of any existing coatings with the material must be expertly checked.

Preparation of Material

The material is ready to use. Stir up shortly before application. In warm weather, it is possible to adjust the consistency by adding a little water.

Consumption

Adhesive
approx. 3.0 kg/m²

Base coat
EPS insulation: approx. 2.0 - 5.0 kg/m²
mineral wool insulation boards: approx. 4-5 kg/m²
(approx. 1.0 kg per mm of layer thickness)

These consumption figures are intended as a guide only; object-dependent or processing-related deviations must be taken into account.

Thickness of base coat
EPS insulation: 2 - 5 mm
mineral wool insulation boards: 4-5 mm

Application Conditions

During the application and in the drying phase, the ambient and substrate temperatures must not be below +5 °C and above +30 °C. Do not apply in direct sunlight, strong wind, fog or high humidity. Please refer to the leaflet "Verputzen, Wärmedämmen, Spachteln, Beschichten bei hohen und tiefen Temperaturen" (Rendering, Thermal Insulation, Filling, Coating at High and Low Temperatures) from the Bundesverband Ausbau und Fassade (Federal Association for Finishing and Façades).
In unfavourable weather conditions, take suitable measures to protect the facade surfaces being treated.

Drying/Drying Time

The waiting time for recoating depends, among other things, on the weather conditions and the layer thickness. The specifications refer to ambient temperatures of 20 °C and 65 % relative humidity and serve as a guide.
The drying and hardening of the material takes place through chemical and physical processes and the release of the contained water, i.e. its evaporation. Cool and humid environments delay these processes.
Any necessary dowelling or base coat should only be applied after the adhesive bed has sufficiently solidified. Dark colours of the finishing render may require special measures.
Primer and intermediate coats must be dry before further application.

Waiting time after bonding

• Depending on the weather, after approx. 2-3 days at the earliest, insert wall plugs or apply the next coat.

• Surface dry after approx. 24 h
• Reworking after complete drying, at the earliest after 2-3 days

The organic render must not be reworked with mineral renders.

Tool Cleaning

Rinse with water immediately after use in accordance with legal regulations.

Example for Machine Equipment

Key data
(++ highly suitable + suitable - partially suitable -- not suitable)

• Flow mixer: --
• Flow mixer + feed pump: --
• Feed pump: ++ (e.g. m-tec P 25 V, Inotec InoBeam F30)
• Mixing pump: +
• Dry mortar feeder: --
• Hose diameter, internal, start / finish: 35 mm / 25 mm
• Max. conveying distance (depending on machine): 50 mm
• Max. conveying height (depending on machine): 25 m
• Sprayer nozzle diameter (depending on grain size): 8-10 mm

Pre-flush delivery hoses with lime slurry or paste before regular operation.

If work is interrupted, do not leave the delivery hose in direct sunlight, cover the material container with foil, for example, and keep the gun and nozzle under water. Stand for max. 30 min. until further processing, otherwise the material in the hose may harden.
Before a work break, the material container in the feed pump of the ‘open system’ (continuous mixer + feed pump) must be emptied as far as possible to prevent material tunnelling when restarting. If this is not observed, the material may have to be made ‘passable’ before the machine is started up (with the machine switched off). Further information on this can be found in the Caparol "Handbuch der Spritztechnologie" (Spray Technology Manual).

Follow the machine manufacturer's instructions.
It is recommended to seek advice on the use of silo and machine technology.

Bonding of Insulation Boards

• Manual or mechanical application possible
• Lay insulation boards at least 10 cm staggered in a bond and join tightly
• Butt and bed joints must remain free of adhesive
• Fill joints ≤ 5 mm with suitable flame-retardant joint foam
• Close joints and gaps > 5 mm with equivalent insulation strips
• Interlock insulation materials at the corners of the building
• Ensure that the application is flush and plumb
• Pre-fill uncoated mineral wool insulation boards in the bonding area (press-filling)
• Damaged insulation boards must not be installed

Bead-dot method
Apply a circumferential bead to the edge of the board and adhesive dots in the centre.

• Render systems - adhesive contact area ≥ 40 %

Full-surface bonding
On even substrates, the adhesive can be applied over the entire surface using a notched trowel/notched trowel. The insulation boards must be pressed, floated and pressed onto the substrate immediately, after 10 minutes at the latest, with the side to which the adhesive was applied.
Mineral wool lamella insulation boards must always be bonded over the entire surface.

Machine bonding (partial surface method)
Apply the material to the substrate by machine in the form of vertical beads. The adhesive beads must be approx. 5 cm wide and at least 10 mm thick in the centre of the bead. The centre-to-centre distance must not exceed 10 cm. The insulation boards must be pressed, floated and pressed into the fresh adhesive bed immediately. To avoid skin formation, only as much adhesive surface may be applied as can be laid directly with insulation boards.

• EPS boards - adhesive contact area ≥ 60 %
• Mineral wool insulation boards - adhesive contact area ≥ 50 %

Reinforcement Layer

To ensure an even and level surface and to stabilise the surface of the mineral wool insulation boards, it is recommended to apply a levelling coat before applying the base coat. To do this, apply a first layer of the reinforcing mortar in a layer thickness of approx. 2 mm and allow to dry thoroughly.

• In the corner areas of building openings, additionally embed Capatect Diagonalarmierung 650/00 (diagonal mesh), Capatect Sturzeckwinkel 651/20 (corner angle mesh) or fabric strips (approx. 25 x 25 cm) diagonally into the base coat.
• Insert the plaster skirting boards, Gewebeeckschutz 656 (mesh corner protection) and profiles into the base coat over the full surface and align them. When using the mesh corner protection, simply run the mesh panels up to the edge.
• Apply the base coat with a stainless steel trowel or mechanically. Check the layer thickness with a notched trowel. The layer thickness of the base coat must be even.
• Embed the mesh (Capatect Gewebe 650) over the entire surface so that it is centred for base coat thicknesses up to 4 mm, and above 4 mm in the upper third.
• The mesh joints should overlap by approx. 10 cm.
• Then apply the base coat wet-on-wet to ensure full coverage of the mesh.

Special Risks (Hazard Note) / Safety Advice (Status as at Date of Publication)

Approval

Customer Service Centre

Technical information

• Technical Information No.

Sustainability data sheet

• Sustainability Fact Sheet Capatect CarbonSpachtel X-TRA 900

Material safety data sheet

• System instructions Capatect CarbonSpachtel X-TRA 900

Technical information

• Technical Information No.

Sustainability data sheet

• Sustainability Fact Sheet Capatect CarbonSpachtel X-TRA 900

Material safety data sheet

• System instructions Capatect CarbonSpachtel X-TRA 900