What do we need?

Many times in cement casting purposes applicable to terraces, after hardening , created hairline cracks (<1mm). Sometimes there are cracks in the masonry of the contact points. Even may have increased porosity due to poor construction of the mixture. In all these cases there is water leakage from the surface to the plate and to the inner surfaces resulting in the formation of moisture and mold walls and destruction of color. Even can occur much more severe problems such as corrosion of the reinforcement plate which is dangerous for the statics of the construction.

How do we do it?

Because cracks on balconies and terraces and much more connections between surfaces show contraction for the insulation used bitumen emulsion of an ingredient BORNIT®-Fundamentdicht 1K, which will be the interim waterproofing between slab and  cement mortar.

Products used

WRM 518

WRM 525

FUNDAMENTGRUND

FUNDAMENTDICHT 1K

Step by step

• The substrate must be clean, solid , stable and free from grease , oil and loose particles . The existence minimum humidity is not a problem but wherever drops of water and standing water should be removed.
• Large cracks (> 5 mm) and gaps close with fiber reinforced repairing mortar WRM 525.
• At the corners of the barriers to the plate, creating with WRM 518 appropriate curve so as not to gather the water to this point.
• Prime with asphalt primer BORNIT®- FUNDAMENTGRUND all surfaces on which to apply the materials.
• The brushable coating « BORNIT® – 1K Fundamentdicht » is ready to use and do not require stirring. Spread with spatula ” comb ” or trowel finish. To achieve uniform thickness of the seal layer should be applied in 2 layers.
• The application of the second layer is made after the complete drying of the first .
• Protect the fresh coating from rain and intense sunlight. The material is not allowed after application to remain unsecured as destroyed by UV radiation.
• Do not use the product when it is raining or when rain is expected and when the outdoor temperature and the substrate temperature is lower than + 5 ° C.
• Finally , after drying the material following the application of the cement .

Product Categories : Waterproofing Repairing mortars