Waterproofing agent, as a declared use for PFAS

22 companies have told Minnesota that they put PFAS into products to serve this purpose, in 601 filings covering 356 products and 29 distinct compounds. This is the field that makes the set worth reading, because it records PFAS being chosen for a job rather than turning up as a contaminant.

Disclosures
601
Companies
22
Products
356
Compounds used
29

How much is reported

Concentration bands as filed, heaviest declared first, with filings that give no concentration at the bottom. Counts are of filings, since one product can report more than one compound.

  • 90 to 100%80 filings
  • 300,000 to <600,000 ppm (60%)1 filing
  • 10,000 ppm to <150,000 ppm (15%)4 filings
  • 1,000 ppm to <10,000 ppm (1%)12 filings
  • 100 ppm to <1,000 ppm (0.1%)143 filings
  • Practical Detection Limit to <100 ppm249 filings
  • Present but the amount or concentration range is unknown112 filings

60 of 601 filings

Capped at 60 rows so the page stays readable on a phone. The rest are in /api/public/disclosures.

Automation SystemBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 8479899090 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Cell Viability AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027800000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Clinical ChemistryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027894560 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Clinical ChemistryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027809080 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Clinical ChemistryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027804560 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Clinical ChemistryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027894590 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027504015 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027905650 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027894560 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027500020 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027504015 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027894560 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027905650 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Flow CytometryBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027500020 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Hematology AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027504015 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Immunoassay AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027804560 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Immunoassay AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027808000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

MicroBiology AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027804590 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

MicroBiology AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027804590 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Particle Counter AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9031499000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Particle Counter AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9031499000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

RefrigerationBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8417500080 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Sample Preparation SystemBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027504015 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Sample Preparation SystemBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8479899599 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Sample Preparation SystemBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 8479899599 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Sample Preparation SystemBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027504015 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Total Organic Carbon Air Particle Counter AnalyzerBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027102000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Total Organic Carbon Air Particle Counter AnalyzerBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027102000 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Urinalysis AnalyzersBeckman CoulterBeckman Coulter Inc.
Where in the product,
Filter
What it is doing,
Waterproofing agent
Compound,
poly(1,1-difluoroethylene) (PVDF) (CAS 24937-79-9)
How much the filer reports,
90 to 100%

HTS 9027500020 · Minnesota disclosure MN-HYNCO19 · published 2026-09-24

Household Sewing MachineBrotherBrother International Corporation
Where in the product,
Sewing/Knitting Tools (Powered) - Type Of Sewing/Knitting Tool - Sewing Machine
What it is doing,
Waterproofing agent
Compound,
Fluoropolymers
How much the filer reports,
90 to 100%

HTS 8452.10.0090 · Minnesota disclosure MN-XUQOXAK · published 2026-09-29

Inkjet Printer SeriesBrotherBrother International Corporation
Where in the product,
Printers - Type Of Printer - Inkjet
What it is doing,
Waterproofing agent
Compound,
Fluoropolymers
How much the filer reports,
90 to 100%

HTS 8443.32.1040 · Minnesota disclosure MN-XUQOXAK · published 2026-09-29

Labeling Printer SeriesBrotherBrother International Corporation
Where in the product,
Printers - Type Of Printer - Thermal
What it is doing,
Waterproofing agent
Compound,
Fluoropolymers
How much the filer reports,
90 to 100%

HTS 8443.32.1050 · Minnesota disclosure MN-XUQOXAK · published 2026-09-29

80804 - Men's Prudhoe Bay Hooded Action JacDuluth Trading CompanyDuluth Holdings Inc.
Where in the product,
Fabric Finish - DWR Finish
What it is doing,
Waterproofing agent
Compound,
1,1,1,2,2,3,4,5,5,5-decafluoropentane (CAS 138495-42-8)
How much the filer reports,
90 to 100%

Style Number 80804 · Minnesota disclosure MN-YCWIOI6 · published 2026-08-12

Clone Screening SystemsMolecular DevicesMolecular Devices, LLC
Where in the product,
Membrane Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027504060 · Minnesota disclosure MN-SSDWYAS · published 2026-07-31

Clone Screening SystemsMolecular DevicesMolecular Devices, LLC
Where in the product,
Membrane Filter
What it is doing,
Waterproofing agent
Compound,
Ethene, 1,1,2,2-tetrafluoro-, homopolymer (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 9027894560 · Minnesota disclosure MN-SSDWYAS · published 2026-07-31

EF- water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

H-104 water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

H-1200 water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

H-300 water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

H-300-NXT water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

H-54 water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

PBS-400 water filtration system seriesEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

ROM IV 3 STAGE ROEverpurePentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

GRO-350BFreshpointPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

GRO-475BFreshpointPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

GRO-475BPFreshpointPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

GRO-575BFreshpointPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

RO2050 seriesOmnifilterPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

Water filtration housing - seriesOmnifilterPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

Analzyer softener - seriesPentairPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

CleanStartSystem-seriesRainsoftPentair Residential Filtration, LLC
Where in the product,
Teflon tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

RO storage tanks - seriesROmatePentair Residential Filtration, LLC
Where in the product,
Seal
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8479899565 · Minnesota disclosure MN-DTOEFAV · published 2026-09-30

BWS/OPS seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

Coldrink seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

COSTGUARD seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

E-seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

Endurance seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

EZ-RO system seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

FX seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

HF CSR seriesEverpurePentair Filtration Solutions, LLC
Where in the product,
Teflon Tape
What it is doing,
Waterproofing agent
Compound,
poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
How much the filer reports,
90 to 100%

HTS 8421210000 · Minnesota disclosure MN-XTGFKWZ · published 2026-09-30

Other declared uses

Source, manufacturer filings made to the Minnesota Pollution Control Agency under the state’s PFAS in Products law and published through PRISM, run by the Interstate Chemicals Clearinghouse. These are the manufacturers’ own statements, not our grades and not laboratory results. A filing covers the product as sold in Minnesota and says nothing about products or formulations the company did not file. Reporting was still open when this was pulled, so absence from the set is not evidence a product is PFAS-free.