The Atlas Two Part White Pool Putty (also known as 530318 and ATM-60-5081) Repairs most pool cracks using a white hardening putty. This comes with two parts you would need to 1-to-1 mix and apply by hand. It works in underwater and out-of-the-water repairs.

Features:

• Formulated for concrete or Gunite pool repairs
• No need to drain pools
• Can harden underwater and out-of-water
• It eliminates leaks and cracks