C.L. Industries Acti-Plex® ACTIPLEX25DS 25 lb Pool Plaster Additive - Acti-Plex® improves pumpability of plaster materials, facilitating smoother application processes. It has enhanced vertical setting properties, ensuring consistent and reliable pool plaster installation. Pool professionals and contractors can expect Acti-Plex® to optimize their plastering procedures, without altering mixing, water, and placement requirements.