Super washable interior paint with
Silver ions for antibacterial effect!
Permanent ANTIBACTERIAL effect

Zertificat Plus Super washable paint - Technical Data Sheet


"ZERTIFICAT" V8140, professional product is paint with silver ions in acryl-styrene emulsion

Main characteristics: coating class 1, according to European Standard 13300 (very good covering capacity); super washable product, excellent whiteness; yellowing resistance; excellent adhesion to absorbent and non-absorbent substrates, optimal applicability, allows walls to breath because the film is permeable for water vapors, short drying time, can be tinted with tinting products KOBER brand, the product is non-pollutant good leveling, very good resistance to ageing, ecologic product.


It can be applied on interior, on all types of masonry, plaster, concrete, gas-formed concrete, rigid building boards, plaster boards, renders, asbestos cement or other building materials. This product has the capacity to purify the air from rooms and to eliminate in a short time pollutant substances and micro-organisms from the places where is applied. Because of its antibacterial properties it is highly recommended for child rooms, bedroom, hotel rooms, hospitals, medical office, kitchens, schools and smoker places. This product is according to EN13300 European standard.


Product characteristics:

Aspect suspensie vascoasa, tixotropa visual
Color white visual
Non-volatile content, 0.5g/50cm2, 125oC, 25 minutes 67 ± 1% SRENISO 3251: 2003
Stormer Viscosity
115 -130 UK According to intern norm
pH 8,0 - 8,5 According to intern norm
Density, 23°C 1,65 ± 0,05 g/ml SR EN ISO 2811-1:2002
Covering power 1 - 2 coats Practical determination
Package availability 12 months from the production date, with the observance of the storage and packing provisions. Depending on the storage conditions, it is recommended to stir the product before use.

Film properties:

Aspect matt visual
Minimum whiteness 90- 92% Data Color Equipment
Drying time at 23 ± 2°C, 50 ± 5% relative humidity, time for deep/handle dry (D type) 60 minutes ASTMD 1640:2003

Application details:

Application method rolling, brushing
air-spraying 3,0 bars air pressure, nozzle: 1,5 mm
air-less spraying 150-250, pulverize angle: 40°, nozzle: 0.013-0.026mm
Thinner used/dilution
clean, cold water (15-25°C)
rolling, brushing - The first coat is applied diluted with approx. 10% water
- Second coat (if necessary) is applied without dilution or 10% dilution
air-spraying 1- 2 coats with approx. 40% diluted product
air-less spraying 1- 2 coats without dilution
Re-covering period minimum 60 minutes
Specific consumption is dependent of surface porosity and preparation Up to 16.0m2/ L/ coat. Practical spreading rate depends on the application conditions (surface geometry, application method, environmental conditions, type and surface preparation). Practical determination


It is not recommended to mix V8140 paint with other products, without those recommended by the producer for tinting.

Surface preparing

The product must be applied on the surface only after it was properly cleaned because this step is important for its durability and quality.

a) New surfaces

  • The surfaces are even with pumice stone, freestone, well burned brick, through circular moves and maintaining permanent contact with plaster surface. For big surfaces it is recommended to use electric polishing equipment;
  • It is recommended to open the cracks with a knife and filled with cement binder, plaster or other filling material. For cracks smaller than 2mm use "Stuc C 4000". For higher cracks thick, it is recommended successively application of more coats with stuc, with intermediary polishing and dust;
  • The plaster which, through knocking, show cracks or some other irregularities are totally removed, until the masonry. If the surface is small it can be repaired with concrete pasta with fast drying; on big surfaces use cement binder of the same type with the plaster;
  • The finishing pasta is made of plaster pasta or "Stuc" C 4000, the last one being very white, with fast drying and very good polishing capacity after complete drying;
  • The dust from polishing is removed with brush, broom or with compressed air;
  • Sand with big granulation is removed because, with time, it will fall down together with the plaster, on touch;
  • All the period for repairing and plastering the recommended temperature is at least 5°C;
  • The plaster need at least 24 hours for complete dry before applying the last finishing coat.

Observation: for best results on surfaces previously primed with APLAFILL or CT127, it is recommended first to apply a coat of "KOBER Putzgrund Weiss" G8105. If the surfaces are well prepared is necessary only one coat of V8140 paint.

b) Surfaces that already had been painted

  • The plaster condition is checked through knocking; if there are surfaces or borders that will fall they need to be repaired with new plaster;
  • Old, un-adherent paint are totally removed through erasing with steel spatula or burning with gas lamp;
  • Paints based on glue are totally removed;
  • Surfaces affected by fungus or mold need to be cleaned and well impregnate dwith anti-mold solution AS8000, and after that the anti-mold primer, G8107, is applied and needs total dry.
  • If the surface need to be repaired it is recommended to use cement pasta, plaster cement or others materials adequate for consolidation; the dust, from polishing after repairing, is removed.

c) Priming the surfaces before applying the product

  • The purpose of the step is to impregnate the support and to fix the coat that already exists on the wall, in case that this previous coat is resistant and does not need to be removed;
  • Through priming the surface is uniformed so the last coat will be perfect, without spots;
  • Furthermore, the primer raises the adherence between the surface and the product we want to apply;
  • Priming is mandatory and requires at least one primer G8101 coat, diluted 1:5 with cold, clean water (15-20°C); for best result it is recommended applying one coat of white primer "Putzgrund Weiss" G8105, diluted maximum 10% with clean water(15-20°C); if it is necessary (the surface was affected by fungus or mold) instead of G8101 primer, you need to apply 1-2 coats of anti-mold primer, G8107, after previously cleaning the surface with anti-mold solution, AS8000;
  • The primer is applied only after complete dryin;
  • The surfaces have new plaster or repairing require additional priming because of the high absorption grade;
  • After complete drying the product may be applied.


Note: if these conditions are not respected it can lead to defects or compromise the entire protection.


The product should be conditioned at 10-30°C, well homogenize and applied on the surface, previously prepared: the product is applied through rolling, brushing, air-spraying or air-less spraying:

Re-covering period between coats: minimum 60 minutes.

The used instruments are washed with water, immediately after application.

Observation: do not work below 5°C


Plastic case with net capacity 2.5L, 8.5L, 15L.


Because this product is diluted with water, it does not require special work conditions. It is recommended to avoid skin, eyes and mucous membrane. In case of skin contact, wash with warm water and soap. In case of eyes contact, wash with water very good and go see a doctor.


All these data have a general character regarding the performance and use of the product; therefore we recommend the testing of the product under conditions specific to the application technology of the beneficiary.

Please contact the producer for further information.