The term PU sealant is understood to mean a permanently elastic sealant based on polyurethane. This PU sealant convinces not only by its high durability, but also by its consistent flexibility, which is particularly beneficial in metal and vehicle repair area. However, the polyurethane adhesive can also be used in interior and exterior construction and offers here, due to its great flexibility, a stable but flexible connection.
If you want to use the PU sealant, you should first be aware that this PU sealant cures only by the humidity. This means that you do not need any further means to cure the polyurethane adhesive, but the polyurethane adhesive independently and within a short time gains in strength. However, this permanently elastic sealant does not cure fully, but retains in its basic features their formability and flexibility. Accordingly, such PU adhesives are always used where mechanical stress would not allow the use of solid adhesives or would break the splices.
Thanks to the simple processing, the PU sealant or the polyurethane adhesive can be used not only by professionals, but also by do-it-yourselfers without problems. However, you should pay attention to the fact that this permanently elastic sealant can discolour yellowish when exposed to sunlight, so that the use in the range of strong UV exposure is not necessarily advisable. The PU sealant can be easily applied and ensures a stable connection between different materials. Accordingly, the PU adhesives can be used safely both for the construction sector, as well as for vehicle construction. High-quality polyurethane adhesive always ensures a secure and lasting connection.