Ice Melter Blend with Blue Crystals Professional Grade Works at very low temperatures: melts ice and snow as low as -31°C! Fast acting: highly visible blue crystals show where product has been applied Available in 20kg bag. Related Products Action Melt®Ice Melters. Safe-T-Plus®Ice Melters. Safe-T-Pet™Ice Melters. Professional Grade Safe-T-Plus®Ice Melters.