Applications
The same chemistry behaves differently on glass, painted steel and concrete. These five pages group the range by what is being bonded, not by what is in the drum — and each one names the failure mode that brings the job back.
Windscreen replacement
Bonded glazing is structural. The bead holds the glass in a crash, seals against water at 120 km/h and has to reach drive-away strength before the customer finishes paying. Three things decide whether it does: the adhesive, the bead, and the surface.
KA518 · KA520 · KA530F
Body shop and sheet metal
A seam sealer is judged twice: by the painter, who has to sand and cover it, and by the customer, who finds the crack eighteen months later. Most comebacks are not adhesion failures — they are a sealer that was too hard for a seam that moves.
KA540
Construction joints
Concrete moves. A joint sealed at 20 °C is compressed at 35 °C and pulled open at −10 °C, and the bead has to follow both without losing adhesion at the flanks. Two questions decide the grade: how much movement the joint carries, and whether water is pressing against it.
KA340A · KA340B
Glulam and timber
PUR wood adhesive cures by reacting with moisture in the wood and the air. That makes it strong and solvent-free, and it makes clamp time a function of the timber, not of the clock.
KA505
Not sure which applies? Describe the substrate and the joint movement in an email — we answer with a model, or with the reason none of them fits.