Why must the strip be compressed immediately after laying ?
This kind of adhesion is called pressure adhesion” because in order to obtain the required result there must be perfect contact between the two surfaces to be joined. If the strip is applied to the road surface only, there is no bond and the action of the traffic and the rain will easily dislodge it. It is absolutely imperative that compression occurs immediately after installation, by all available means (feet, hands, vehicles, but above all with the roller). Since the road surface is usually rough, particularly if the weather is not very warm, the strip must be pressed down thoroughly so that it makes good contact with the surface. If this is not done, the strip will only stick to the higher points of the rough surface and the hollow parts will remain empty. In this way rain gets in underneath the strip and the up and down movement of wheels over it causes the whole thing to become detached.