Primer, Phreatic Pressure Resistance, and Vapour Barrier in One Coating
Primer WET is a high quality, 100% solids resin, specially designed to be applied on very wet surfaces, even with a moisture content of up to 98%. This adhesion capacity in high humidity conditions eliminates the need to wait for substrates to dry completely, allowing significant time savings in the application of liquid waterproofing systems or floor painting.
The uniqueness of Primer WET does not stop at its ability to adhere to wet surfaces, it is also resistant in the long term to negative water pressure. To better understand the capabilities of Primer WET, we can compare it to commonly used mortars working under back pressure on the market, which typically offer a negative pressure resistance of between 1 and 3 Bar. Primer WET on the other hand, with a consumption of only 0.5 kg/m2 provides a resistance of 10 Bar according to European standards for resistance to indirect water pressure, which makes it a superior option for projects that require high resistance to negative pressure.
In addition, this product also offers CLASS III water vapour impermeability, the highest classification available according to current standards, which means that it is completely impermeable to water vapour. This characteristic is crucial to maintain the integrity of any product that is adhered to the primer (waterproofing membranes, epoxy coatings, polyurethanes, etc.), especially in applications where water vapour from the underside of the substrate can affect the integrity of the system.
In addition to its impressive resistance, Primer WET is versatile in its application on different surfaces as it offers adhesion on porous substrates such as concrete and mortar as well as on vitrified surfaces such as ceramics or gresite where it maintains an adhesion to the substrate of more than 2 MPa. This versatility makes it one of the best performing products on the market.
Primer WET simplifies and accelerates the waterproofing process, providing a robust and reliable solution for projects that require maximum waterproofing and resistance in situations where moisture or water pressure is present. This product offers peace of mind to both professionals in the sector and the customer user, guaranteeing optimal and long-lasting results in a variety of technical applications. In addition, it provides economic efficiency by allowing a faster system to be installed, without delays or setbacks.
A practical case of its application is the waterproofing of a swimming pool shell with a polyurea membrane.
In this scenario, due to the construction of the pool, there may be seepage through the back of the support, the entry of water either in the form of vapour or in the form of liquid water due to negative pressure.
To prevent this water in the form of vapour or liquid from detaching the polyurea from the substrate, it is essential to apply a "barrier" layer, in this case Primer WET fulfils these two functions effectively while also acting as an adhesion or anchoring layer, ensuring long-lasting and safe protection.
