WHAT IS THE DIFFERENCE OF CRACKFILLERS, HOT OR COLD POUR?

THIS IS AN EXAMPLE OF COLD CRACKFILLER MOST OF COMPANIES USE, IS RUBBERIZED BUT CRACKS AFTER FEW WEEKS AND LEAVES A GRAY COLOR OVERTIME
THIS IS AN EXAMPLE OF COLD CRACKFILLER MOST OF COMPANIES USE, IS RUBBERIZED BUT CRACKS AFTER FEW WEEKS AND LEAVES A GRAY COLOR OVERTIME
THIS IS A HOT RUBBER CRACKFILLER WE USED, IS  MORE DURABLE, DOESN'T CRACK, WE APPLY IT RIGHT ON CRACK, VERY NEAT, MAKING IT   VERY COSMETIC AND DURABLE APPEARANCE.
THIS IS A HOT RUBBER CRACKFILLER WE USED, IS MORE DURABLE, DOESN’T CRACK, WE APPLY IT RIGHT ON CRACK, VERY NEAT, MAKING IT VERY COSMETIC AND DURABLE APPEARANCE.
THEN WE SEALED ALL DRIVEWAY AND HOT RUBBER WITH A NICE COAT OF SEALER FOR A EXTRA PROTECTION ON CRACK AND ASPHALT.
THEN WE SEALED ALL DRIVEWAY AND HOT RUBBER WITH A NICE COAT OF SEALER FOR A EXTRA PROTECTION ON CRACK AND ASPHALT.