@lewm,
Completely 'wetting' the record will remove the static charge from the side that is fully 'wetted'. This paper shows that a 20% IPA solution which has a surface tension of about 30 dynes/cm will remove the static charge from Teflon which has a lower critical surface tension (~19 dynes/cm) than PVC (~38 dynes/cm). https://www.semanticscholar.org/paper/Static-charge-removal-with-IPA-solution-Ohmi-Sudoh/be62b540b4a. Once the record surface or any surface for that matter is 'wetted', it becomes 'dissipative' and static charge is dissipated/eliminated. Cleanrooms commonly use DIW-IPA sprays for anti-static/static removal.
A 'conductive' carbon brush depending on how it is used and whether the human is grounded can either do nothing, remove static charge or charge the record.
Why would a record be staticky after initial cleaning could be associated with how it was 1st dried. Plausible theory - Cloths used to dry the first record will be drier than when used for the 2nd record and when 1st used may not remove as much moisture as when used for the 2nd record when the cloth is slightly damp and drying by capillary action may be in-play. The initially drier cloth may actually create static. So the 1st record in its sleeve that may be slightly damp sets ups a high humidity environment in the sleeve perfect for dissipating any residual static.
Completely 'wetting' the record will remove the static charge from the side that is fully 'wetted'. This paper shows that a 20% IPA solution which has a surface tension of about 30 dynes/cm will remove the static charge from Teflon which has a lower critical surface tension (~19 dynes/cm) than PVC (~38 dynes/cm). https://www.semanticscholar.org/paper/Static-charge-removal-with-IPA-solution-Ohmi-Sudoh/be62b540b4a. Once the record surface or any surface for that matter is 'wetted', it becomes 'dissipative' and static charge is dissipated/eliminated. Cleanrooms commonly use DIW-IPA sprays for anti-static/static removal.
A 'conductive' carbon brush depending on how it is used and whether the human is grounded can either do nothing, remove static charge or charge the record.
Why would a record be staticky after initial cleaning could be associated with how it was 1st dried. Plausible theory - Cloths used to dry the first record will be drier than when used for the 2nd record and when 1st used may not remove as much moisture as when used for the 2nd record when the cloth is slightly damp and drying by capillary action may be in-play. The initially drier cloth may actually create static. So the 1st record in its sleeve that may be slightly damp sets ups a high humidity environment in the sleeve perfect for dissipating any residual static.