Moisture barrier underlayment for resin based flooring system KERACRETE MB100
1. Requirements:
1.1. Requirements for labor protection work
– During application, workers must wear full labor protection (hat, clothes, shoes, glasses, mask, and gloves).
1.2. Requirement for moisture
– Substrate moisture content < 6%. – Maximum relative air humidity 85%. – Min. substrate temperature 13ºC. – Max. substrate temperature 39ºC. – Construction areas require good ventilation.
2. Mixing:
2.1. Mixing KERASEAL PS60
– Using specialized mixer, approx. 600 rpm with a suitable mixing paddle. – Add the composition B to the composition A and mix a further 3 minutes until homogenous (may take a longer depending on weather conditions and equipment).
2.2. Note during application
– Material after mixing is homogeneous, no clot and deposit.
3. Application steps
3.1. Surface preparation
– Surface is clean without impurities. – Remove weak adhesion on the surface. – Surface is grinded by specialized machine with suitable sharpening blade or Short Blasting. – The cracks and pitting positions are handled with specialized sealant.
3.2. Applying KERACRETE MB100
– Before applying the primer, construction area surface must be carefully moistened. Avoid stagnate water and create puddles on the surface. – Spread KERACRETE MB100 on the area to be applied with a specialized brush, finish the surface with serrated brush. – Apply by spiked roller several times on the surface while the topcoat still wet to remove foam. – Finishing mortar layer must ensure coverage, uniformity of the surface. Notes: In order to ensure the advantage of product, waterproofing coating after construction need a protect layer to avoid UV and external forces on the coating surface.