Baquacil
Brand · part of Sigura (Solenis)
Baquacil is a chlorine-free pool sanitizing system based on polyhexamethylene biguanide (PHMB), a biguanide originally developed as a surgical disinfectant and adapted for pool use by ICI Americas (later Zeneca) around 1980. The system pairs a sanitizer/algistat with an oxidizer and is sold alongside the chlorine-free spa line BaquaSpa. The brand is now owned by Innovative Water Care within Solenis's Pool Solutions division, reaching Solenis via Sigura after the 2021 merger.
| Website | baquacil.com ↗ |
|---|---|
| Category | Chemical |
| Parent / owner | Sigura (Solenis) |
| Ownership | Subsidiary |
| Country | United States |
| Known for | Chlorine-free biguanide (PHMB) pool sanitizer system, marketed as gentler on skin, hair, and swimsuits than chlorine; sister spa line BaquaSpa applies the same chemistry to hot tubs. |
| Product categories | Chlorine-free sanitizers (PHMB biguanide), Oxidizers, Algaecides, Balancers, BaquaSpa (chlorine-free spa care) |
| Does well | Chlorine-free pool and spa sanitation for swimmers seeking an alternative to chlorine, with a complete biguanide-based system. |
Company Timeline
| Date | Event |
|---|---|
| 1980 | Baquacil PHMB sanitizer registered for swimming-pool use by ICI Americas |
| 2021-12-31 | Reaches Solenis's Pool Solutions division when Sigura merges with Solenis |
Sources
- https://baquacil.com/
- https://www.serviceindustrynews.net/2021/12/31/sigura-water-announces-merger-with-solenis/
Last updated 2026-06-24 · Next review 2026-07-24