What is the NRC value of CP 606? What thickness of sealant is required to achieve NRC value of 0.8

To achieve some acoustic parameters, an NRC value of 0.8 is required in a sealant, in this case, can we use CP 060? what will be the NRC value and how much thickness is required to achieve an NRC value of 0.8. Provide any document other than the attachment.