Moving coal and other wet materials during the winter can be difficult. Material that has frozen to the side wall of a rail car and will not unload is called carry back. Carry back represents loss in yield, slows unloading times, and can cause uneven weight distribution. MinTech’s ultra-concentrated freeze protection technologies can solve problems associated with freezing and sticking. Application techniques and products are designed to cling to vertical surfaces, providing a more effective freeze barrier to fight carry back formation.