Each of our crackle pastes uses a unique recipe in order to best recreate specific aspects of our natural environments. Use on your miniature base or terrain feature directly from the container. For best results, apply in an even 1-3mm layer using a small palette knife and allow to air dry. Crackle will begin forming in up to 12 hours. Allow up to 3 days for full crackle depth to form. Keep the lid sealed tight when not in use.