ISOSTIK 4.4 is a modified 4,4-diphenylmethanediisocyanate used in the production of agglomerates. ISOSTIK 4.4 mono-component is an adhesive obtained from isocyanates which react with nebulized water and with the moisture contained in the air. ISOSTIK 4.4 hardens thanks to the humidity contained in the air or by the addition of nebulized water. ISOSTIK 4.4 is