TECHNONICOL WATERPROOFING MASTIC №21
TECHNONICOL №21 is a liquid rubber, ready to use material suitable for repair works or for waterproofing of entire roofs and details. Material consists of oil bitumen modified by artificial polymers, mineral fillers and organic solvent. After drying, material forms highly strong and elastic covering, highly resistant to temperature changes, considerably increasing the service life of the protected surfaces.
TECHNONICOL №21 application areas:
Method of application:
TECHNONICOL №21 mastic should be applied to prepared surface clear of any debris and surplus materials, mastic can be applied by using stiff paint brush, filling knife or by pouring and leveling. Single layer thickness should not exceed 1.5 mm, each subsequent layer must be applied after previous layer is completely dry. It is highly recommended to apply minimum of 2 layers, to achieve durable waterproofing.
With concrete - 0,6 МPа
With metal - 0,9 МPа
For roof waterproofing 3,8-5,7 kg/m²
Before applying waterproofing is necessary to prepare the surface, apply primer and wait for it to dry.
Between the layers of the waterproofing is necessary to make fiberglass reinforcement, with glass, fiberglass or geotextile.
The final waterproofing must be protected against UV with help of protective compound TECHNONICOL №57