Tikkurila Temafloor 401 is a two-component solvent-free epoxy varnish and is mostly used as a low viscosity binder in Temafloor 4000 grinding screed. Also the varnish can be used as a binder for Temafloor 4000 ESD trowelling screed.

Can be used as an injection lacquer. The low viscosity of the lacquer is allowed to spray it on concrete to fill cracks.

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• Features & Benefits
• Technical Data
• Surface Preparation
• Recommended Topcoats
• Application Conditions
• Mixing Components
• Application
• VOC
• Health And Safety

Features & Benefits

• A low viscosity varnish used as binder in Temafloor 4000 troweling screed .

Technical Data

Practical coverage depends on the porosity and evenness of the substrate and on the application method.

Surface Preparation

New Concrete

• Remove laitance by power grinding vacuum grit blasting or hydrochloric acid etching.
• Choose the method best suited for the premises.
• After grinding remove dust carefully with a vacuum cleaner.
• Hydrochloric acid etching is carried out with diluted hydrochloric acid (1 part concentrated hydrochloric acid, 4 parts water).
• Rinse with plenty of water.
• Dry the surface.

Old Concrete

• Remove all grease, oil, chemicals and other impurities by Maalipesu detergent.
• Remove old peeling paint layer by grinding.
• Choose the method best suited for the premises.
• Clean out pot-holes removing all loose friable material.
• Open cracks with e.g. an abrasive tool.
• Remove loose material and dust.

If cementitious screed is used, check compatibility with the levelling screed manufacturer.

Application Conditions

• The temperature of the ambient air, surface or coating should not fall below +15ºC during application or drying.
• Relative humidity of air should not exceed 80%.

Note! There is a natural tendency of this coating to chalk, discolor or yellow unevenly. It is recommended to use polyurethane topcoat when there are high aesthetical requirements on colour appearance

Mixing Components

• First stir base and hardener separately.
• Mix the correct proportions of base and hardener thoroughly (approx. 2 minutes to get homogenous mixture) by using a low speed industrial hand drill with a paddle.
• Insufficient mixing or incorrect mixing ratio will result in uneven drying of the surface, weaken the properties of the coating and risk the success of the application.

Application

Priming:

• Prime using about 30% thinned Temafloor 400 epoxy varnish.
• Pour the varnish onto the floor and apply as much as is needed to impregnate the concrete surface.
• If necessary, repeat priming to get a non-porous surface.
• A porous priming coat will result in holes and air bubbles in the finished coating.
• Subsequent treatment can be carried out after 2 hours using "wet-on-wet" technique.

Patching:

• Patch pot-holes and cracks with a mixture of unthinned Temafloor 400 epoxy varnish and dry, clean sand.
• Mixing ratio e.g. 1 part by volume of varnish mixture and 1–2 parts by volume of sand of grain size 0.1–0.6 mm.
• Sand the patched areas before overcoating, if necessary.
• Note! Concrete surface should always be primed before patching.

Screed

• Pour the screed mixture onto the floor.
• If a thin layer is required, apply by an adjustable trowel to the desired screed thickness.
• Thick layers are applied by a screed box or by a straight-edge and suitable laths to gauge the required thickness.
• Trowel the screeded surface by hands or use a suitable lightweight troweling machine.

Topcoating

• Overcoating should be done within 16–24 hrs after priming.
• If the primed surface is not overcoated within 24 hrs, it should be abraded.
• Use unthinned Temafloor 400 varnish for the topcoat.
• Pour the mixture onto the floor and apply it with a trowel and level with a roller.

Thinner/Cleaning

Thinner:

• Do not thin Temafloor 4000 troweling screed.

VOC

• VOC 2004/42/EC (cat A/j) 500 g/l (2010)
• Temafloor 401: max. VOC < 500 g/l

Health And Safety

Reaction to fire: BFL-s1 according to standard EN 13501-1

Containers are provided with safety labels, which should be observed. Further information about hazardous influences and protection are detailed in individual health and safety data sheets.

For industrial and professional use only.

Please contact Rawlins Paints' Technical Support Team on 0113 2455450 (option 2) or send a message to [email protected] for more information.

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