dpc cream - can I inject one wall at a time?

[moley]

i am about to inject dpc cream in the mortor i have three walls to do can i do one wall at a time .and when i do the second wall will the dpc cream join together or will there be a slight gap were the the first injection has dryed because the cream is so dear thankyou

[welsh brickie]

its best to do it all at once, but it should be ok