DPC Injection Cream is designed with controlling rising damp in mind, but walls CAN remain damp after DPC installation. They can also remain damp where contamination by hygroscopic salts has occurred. In such instances, special measures may be needed to provide long term control of dampness in these walls (give one of our dampness-boffins a call for free advice, as ever!) Economy DPC pump / applicator. For use with DPC cream, insecticides and fungicides.