Polyurethane resin for the terrace

What is polyurethane resin?

Polyurethane resin is a synthetic polymer characterized by high flexibility and abrasion resistance. It is used as a protective coating on various surfaces, including on terraces, where it ensures durability and aesthetic finish.

Features and properties of polyurethane resin

• UV resistance : polyurethane coating is resistant to chalk, thanks to which there is no white coating when using outside. In addition, aliphatic polyurethane does not turn yellow under the influence of solar radiation, which ensures a long -lasting aesthetic effect.
• Flexibility : adapts to natural substrate movements, minimizing the risk of cracks.
• Chemical resistance : has high resistance to chemicals, which is important when exposed to various substances, even those contained in acid rain or floating exhaust.

Polyurethane resin and other types of coatings

Compared to epoxy resins , polyurethane resins offer better flexibility and resistance to UV radiation, which makes them more suitable for external applications, such as terraces.

Advantages of using polyurethane resin to the terrace

• Durability : high resistance to abrasion and mechanical damage.
• Aesthetics : the ability to get various types of finishes, from matte to high gloss, depending on your preferences. Selected types of polyurethane resins can be colored, which allows the implementation of unique and aesthetic projects in line with the client's vision.
• Ease of maintenance : a smooth surface without connections makes cleaning and maintenance easier.

How to prepare a terrace for the polyurethane resin application?

1

​All poorly adjacent fragments should be removed to increase the adhesion and durability of the entire applied floor system.

2

​It is worth using special skimming agents such as Sulfanol A or Emulsol . However, it should be remembered that after applying any cleaning or degreasing agents, it is necessary to wash them thoroughly. Unrelated residues will affect the adhesion of the later terrace system.

3. Repair of damage

in the case of cavities and cracks it is necessary to supplement them. For this purpose, ready -made repair masses , which are based on epoxy products, such as EPOXOL® Putty or EPOXOL® Liquid . You can also make a repair mass yourself or use epoxy screed using EPOPXOL® PRIMER SF-P . In the case of large cavities, it is worth reprofilated the substrate using PCC masses such as Trken CBL , Traken FCM1 and Trken FCM2 . Finally, the surface should be maximally smooth and uniform before the application of resin systems .

4. Grinding

is always recommended to grind the ground to increase the resin adhesion to the ground. Depending on the type of system applied, other types of grinding are recommended. Under thin -layer systems applied with a roller, the substrate is ground gently to open the pores and increase the grip. On a CSP scale it is 2 or 3. If, however, thick -leaf or self -leveling systems are applied, the thickness of which will exceed 1 millimeter, then shot or milling is recommended. On the CSP scale it will be 4 and 5. Such preparation of the substrate should ensure adequate adhesion and thus the system's durability for years.

5. Priming

during the application of polyurethane resin systems on the terrace, a proper primer is necessary to ensure better resin adhesion to the ground. Neopox® Primer WS are often used to protect the floor against spilling and the appearance of bubbles, and an increase in adhesion.

How to apply polyurethane resin to the terrace? Step by step

1

​In some cases, polyurethane resin for the terrace such as Neodur® Special or Neodur® Special Mat , it is necessary to use the system thinner Neotex® PU 0413 . It affects not only the product's spreading, but also the final aesthetic effect.

2. The application of the first layer

after preparing the mixture, the polyurethane resin is spread evenly on the terrace, applying the first layer. This is done depending on the product, using a roller, brush or welt , if the manufacturer allows this type of application, while taking care of the even covering of the entire surface.

3

​After this time, it is possible to apply subsequent layers of the system. It is worth remembering that the minimum drying time is always given in the technical card of the product used and applies to specific weather conditions. If the humidity is high and the temperature drops, the times given in the card will probably extend. In turn, low humidity and high temperature shorten this time. Therefore, it is necessary to observe weather conditions during the polyurethane resin application on the terrace to properly position the resin system.

4. Application of subsequent layers

after pre -hardening the floor is applied to the second layer of resin to get the desired thickness and finish. If more layers are needed, they are performed according to the described scheme.

5. Final hardening

The final stage is to leave the polyurethane resin floor on the terrace to fully harden, before its full use. At this time, although the surface is hardened on top, the chemical networking process is still underway inside. It is not recommended during this process of setting furniture on the terrace or using it in footwear. Usually, this stage lasts up to 7 days from the moment the last layer is applied.