With Soudal 28A polystyrene adhesive, you can securely install ceiling tiles, decorative mouldings, covings, and foam insulation boards on interior walls and ceilings. Supplied in a 5 kg tub, this ready-to-use paste applies directly with a notched trowel or in dabs without any pre-mixing. Its solvent-free, water-based formula prevents damage to delicate eps and xps foams while eliminating harsh chemical odours indoors. Thanks to its strong initial grab, lightweight decorative elements and panels stay firmly in place on porous substrates like concrete, plaster, stone, and wood without slipping.