POLYTEX

Description

Elastomeric acrylic waterproofing and protective coating

 

Polytex is a single component, elastomeric, acrylic waterproofing and protective coating. Polytex upon curing forms a tough, flexible and durable coating which is resistant to UV and other weathering agents.

Properties

  • Single component, easy to apply
  • Protects exposed concrete structures against carbonation and ingress of atmospheric gases and salts
  • Excellent UV resistance
  • Elastomeric- high crack bridging capability
  • Excellent adhesion to most of the substrates
  • Good resistance to dilute acids, alcohol, hydrocarbons, chloride and sulphate ions

This TDS is applicable for the United Arab Emirates only. Please contact your local Polybit sales office for the available TDS in your region

Step by Step

Substrate Preparation

Concrete surface:

Clean the surfaces which shall receive the coating of all dust, dirt, moss, oil and grease, loose particles, cement laitance and all other deleterious materials which will affect the adhesion of the coating with the substrate. Cracks and potholes shall be repaired with concrete repair mortar from the Polycrete* range.

Metal surface:

Clean the surface of all rust scales. This can be achieved by wire brushing or grit blasting.

Primer

Polytex shall be diluted with 20% water and applied as primer coat on the concrete surface to seal the pores and stabilize the surface. The primer also functions as an adhesion promoter for the top coats. This primer coat can be applied by a brush, roller or airless spray and allowed to dry completely before the application of acrylic coating.

Mixing

Polytex is single component but stirring of the pail is recommended prior to the application of the coating. This will remove any sediment which may occur during storage. The use of a slow speed drill and suitable paddle should be used in order to avoid the formation of air bubbles.

Application

Polytex can be applied by soft bristled brush, roller or an airless spray. When applying by airless spray then dilute the coating with approximately 5% water to reduce the viscosity of the coating. Apply the first coat of undiluted material at a coverage rate of 1 lt./m²/coat to get a dry film thickness of 0.50 mm. It is important to ensure that each coat has to be cured totally before applying the next coat. The second coat should be applied at right angle to the first at the same coverage rate, to ensure a full unbroken coating to the substrate. For improved strength and flexibility, embed a 65 g/m2 non woven geo-textile membrane whilst the first coat is still wet on all corner joints, fillets and pipe penetration joints. Allow the coating to cure fully for 72 hours to achieve its full properties.

Protection

As a protective coating on concrete/render/plaster surfaces, the coating should be applied @0.75 L/m²/coat for a DFT of 1mm in 2 coats.