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Membrane chemicals

Chemicals for RO / NF / UF systems

Products taken from the POLYMER Aqua-Link Product Manual 2025 chapters on RO antiscalants, RO cleaners, RO biocides, reducing agents and UF cleaners. POLYTE® 705 is an RO-pretreatment inline coagulant.

RO / NF antiscalants & dispersants

ModelDescription
TRISPE® 1000High-efficiency antiscalant/dispersant, high hardness/alkalinity/pH feed water, NSF 60
TRISPE® 1200Seawater desalination antiscalant for high-salinity feed
TRISPE® 4000Phosphorus-free, high cycle-of-concentration antiscalant
TRISPE® 4001Phosphorus-free antiscalant (acidic side)
TRISPE® 6000High-sulfate feed water antiscalant
TRISPE® 8000High-iron feed, 8x concentration antiscalant
TRISPE® 801111x concentration high-efficiency antiscalant
TRISPE® 8012MVR evaporator antiscalant
TRISPE® 9000Landfill-leachate membrane-system antiscalant
TRISPE® SI001High-silica feed antiscalant, SiO₂ control

Membrane cleaners

ModelTypeApplicable membrane / application
PT-RO Clean® 111Acidic cleanerAromatic polyamide RO, MF, NF, UF — metal oxides, carbonate scale
PT-RO Clean® 131Alkaline cleanerSulfate scale, organics, biofilm — often paired with 111
PT-RO Clean® 921Acidic cleanerAromatic polyamide and cellulose acetate membranes
PT-RO Clean® 931Alkaline cleanerAromatic polyamide membranes
PT-RO Clean® 933Acidic cleanerLandfill leachate NF / RO
PT-RO Clean® 934Alkaline cleanerLandfill leachate NF / RO
PT-RO Clean® SI001Silica-scale cleanerSilica, metal oxide and carbonate scale
PT-UF Clean® 100UF acidic cleanerFood, pharma UF/MF/NF inorganic scale and metal oxides
PT-UF Clean® 200UF alkaline cleanerOrganics, protein, microbes — paired with 100

Biocides, reducing agents and pretreatment chemicals

ModelTypePrimary use (manual abstract)
PT-BIO® 900BiocideBroad-spectrum non-oxidising biocide for RO, CIP or shock dosing
PT-BIO® 900BBiocideDedicated for pasteurisation systems
PT-BIO® 900CBiocideHigh-concentration broad-spectrum non-oxidising biocide
PT-BIO® 911BiocideBiofouled RO, low-dose fast-kill
POLYTE® 728sReducing agentRemoves residual chlorine and other oxidants, easy-dissolve powder
POLYTE® 705CoagulantRO pretreatment, inline flocculation upstream of multimedia filters

Please respect membrane-manufacturer compatibility and cleaning procedure limits. Dosing rates should be determined with tools such as TRISPE® Analyzer plus on-site water chemistry verification.

Membrane antiscalant & cleaning protocol

Submit feed water analysis, recovery and temperature for a tailored chemical & cleaning sequence

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