Description
Flexible waterproofing for multiple demands
It creates a continuous barrier capable of withstanding both positive and negative water pressure, even on surfaces subject to minor movement. Its excellent crack-bridging ability ensures long-lasting protection indoors and outdoors.
Easy, versatile application.
A single-component product that only requires adding water, with an adaptable consistency for application with a trowel or brush. It can be applied over damp surfaces and can be left exposed to the weather without needing additional coverings.
Maximum adhesion and breathability.
It offers very good adhesion to different substrates and allows surfaces to breathe, reducing the risk of carbonation and ensuring stable performance even with sudden temperature changes.
WP91 Ultra Flex is ideal when you need a reliable solution to protect surfaces exposed to moisture, temperature variations, and water pressure.
Its flexibility and crack-bridging ability make it perfect for waterproofing indoor and outdoor areas that need a durable barrier, such as terraces, balconies, bathrooms, pools, water tanks, or walls exposed to moisture under pressure. It’s a versatile alternative for reinforcing structures that may experience minor movement, providing a continuous layer that prevents leaks and extends the service life of the substrates.
Single-component product, just add water.
Allows surfaces to breathe.
Adjustable consistency, can be applied with a brush or trowel.
Helps reduce carbonation.
Excellent crack-bridging ability.
Withstands positive and negative water pressure.
Can be applied over damp surfaces.
Excellent performance, even with sudden temperature changes.
Very good adhesion to different substrates.
Product classified as CMO2P according to UNE-EN 14891.
Technical data
Mixing ratio
Performance
Drying time between coats
Time for qualification
Presentation
Storage
Service life
Preparation of the mixture and application instructions:
First, add 80% of the water, then add the powder while you begin mixing.
It is recommended to do this in a well-ventilated area and to wear a dust mask.
Use a mixer or a low-speed drill, maintaining a ratio of 4 to 4.7 liters of water (22% to 26%) per 18 kg bag of WP91 UltraFlex waterproofing compound.
Mix for 3 to 4 minutes until you get a homogeneous, lump-free mixture.
It is recommended to use 4 liters of water when applying with a trowel, and 4.7 liters when applying with a brush.
It is recommended to apply a minimum thickness of 2 mm at any point, ensuring a minimum consumption of 2.4 kg/m².
Frequently asked questions
Can it be applied over damp surfaces?
Yes, WP91 Ultra Flex can be applied over damp surfaces, as long as the substrate is sound, clean, and free of materials that could affect adhesion.
What types of surfaces is it suitable for?
It is suitable for concrete, plaster, and other stable, structurally sound substrates. Any irregularities must be corrected beforehand with the appropriate mortars.
How many coats, or what thickness do I need to apply?
It is recommended to ensure a minimum thickness of 2 mm at any point, which implies an approximate consumption of 2.4 kg/m².
When can I open the surface for use?
The surface can be opened for use 48 to 72 hours after application, depending on environmental conditions.
