FEATURES: Surface must be free from dust, oil, grease, and loose particles etc. Moisten the surface before applying ALTO FIX Crack Seal Paste. Fine hair line cracks must be widened up to minimum 1 mm and then to be filled For filling ALTO Fix Crack Seal Paste on the internal surface, existing POP or painter’s putty must be removed till plaster surface is exposed. Then fill ALTO Fix Crack Seal Paste into the crack, when the surface is tacky. Press ALTO Fix Crack Seal Paste firmly into the crack with a spatula or putty knifes & level with the surface. Care must be taken to avoid formation of cavities or bubble during application. Allow it set for 24 hours and then apply another coat of ALTO Fix Crack Seal Paste. Further POP or painter’s putty application can be taken up once it is fully dry. For best results allow ALTO Fix Crack Seal Paste to cure for 7 days.