REVESTIDAN FINISH

Substrate preparation: Thorough preparation of the substrate is essential for an optimum and durable finish.

• Type of substrate: REVESTIDAN FINISH is recommended for use on mortar and concrete, steel and aluminium, plasticised, sanded and self-protected asphalt sheets (slate finish) and PVC sheets.
  
• Condition of substrate: it must be dry and clean of dust, grease, paint residues, plaster and foreign bodies and any other product that hinders adhesion to the substrate.
• Preparation of the substrate:
  

+ Loose or poorly adhered particles, paints, dirt, grease, oils, mortar or plaster laitance, organic substances and dust shall be removed by brushing or sanding. Subsequently, dust must be carefully removed. + The substrate must not be cleaned with water, unless an adequate drying period can be allowed or is forced.
+ If necessary, the surface must be levelled with mortar.
+ In the case of plasticised asphalt sheets, the polyethylene finishing film shall be removed in the area where it is to be applied. To increase adhesion, the asphalt mastic can be melted and then saturated by sprinkling with silica sand (0.4-0.8 mm).
+ In the case of self-protected asphalt sheets in mineral granules, the surface should be brushed prior to application to remove poorly adhering granules.
+ In the case of metallic surfaces, no pre-treatment is necessary. In case of dirt (dust, grease, etc…) sanding and subsequent cleaning with Methyl Ethyl Ketone (MEK) may be necessary.
+ In case of plastic surfaces (PVC, etc…) it is recommended to pre-clean with Methyl Ethyl Ketone (MEK).

• Substrate humidity: REVESTIDAN FINISH must be applied on dry surfaces, humidity degree < 5%. In the case of concrete, it must be cured for at least 28 days.
  
• Drying time: Depends on ambient temperature, sunshine and relative humidity.
• Minimum recommended waiting time between coats. One coat should be applied when the previous one is dry.
  
• Application tools: Flat brush (40 to 100 mm wide).
• Application temperature: REVESTIDAN FINISH must not be installed when the temperature is lower than + 5 ºC or higher than + 35 ºC.
  
• Substrate temperature: It must be higher than + 5 ºC. Treatment of finishes on bituminous waterproofing: parapets, machinery dwarfs, pipe penetrations, etc.
  
• The substrate is prepared according to the above mentioned instructions.
  
• REVESTIDAN FINISH is stirred well and slowly with a manual stirrer, never with a mechanical mixer.
  
• Apply at least 2 coats according to the following instructions:
  

+ A first coat of the product is applied using a flat brush 40 to 100 mm wide. The thickness of this first coat shall be 0.6-0.8 mm (approximate yield 1.25 kg/m²).

+ Once this first coat is dry, a second coat of the product is applied to a thickness of approximately 0.6-0.8 mm (approx. yield 1.25 kg/m²).

+ It may be necessary to apply a third coat.
Finishes of different waterproofing in complex details, plumbing fittings/zinc work, flashings, edges, drains, etc: Proceed as above.