Contact adhesive forms an immediate bond when two prepared, adhesive-coated surfaces are pressed together. Coverage, flash-off and pressure are more important than adhesive thickness.
AD215 suits brush-applied laminates, timber, leather, vinyl, rubber, foam and fabric. AeroBond AD40 provides spray application for upholstery, foam and large areas. PA75 is intended for compatible flexible PVC, coated fabrics, rubber and inflatable products.
Surfaces must be clean, dry and free from oil, dust, release agents and weak material. Abrade where required and remove all residue. Test plastics, foams, coated materials and plasticised PVC before production.
Apply a thin, even film to each surface, extending adhesive to every edge. Avoid puddles and heavy ridges. Porous materials may absorb the first application and require a second coat to produce a continuous adhesive film.
Keep the surfaces apart while solvent or water leaves the adhesive. Join only when the film has reached the condition specified in the data sheet. Joining too early traps carrier and weakens the bond; waiting beyond the open time can prevent effective transfer.
Use spacers or alignment guides for large components because repositioning is difficult after contact. Bring the surfaces together progressively to avoid wrinkles and trapped air.
Use a roller or press to apply firm, even pressure across the complete area, working from the centre towards the edges. Pressure creates intimate contact; adding a thicker adhesive layer does not replace it.
Immediate grab provides handling strength but not final heat, water or chemical resistance. Avoid loading or testing the assembly until the stated cure period has passed. Provide ventilation and follow the current data sheet and safety instructions.