Our company does not use adhesives to attach the mesh to the bead. This connection is made using the so-called ultrasonic weld where the connection is based on the energetic bonding of two PVC elements.
Such form of bonding guarantees first of all a very strong connection of the glass mesh with the PVC profile, resistant to all agents (also thermal and chemical) and, secondly, guarantees the absence of the above mentioned streaks and discolouration.