Stonhard and PFAS, what the company told Minnesota
Stonhard has filed 10 PFAS disclosures with the Minnesota Pollution Control Agency, covering 9 products and naming 3 distinct compounds across 3 components. Everything below is the company’s own statement to a regulator, not our assessment.
- Disclosures filed
- 10
- Products covered
- 9
- Compounds named
- 3
- Declared uses
- 3
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.
- 150,000 ppm to <300,000 ppm (30%)2 filings
- 10,000 ppm to <150,000 ppm (15%)8 filings
All 10 filings
- Where in the product,
- Flexibility and adhesion
- What it is doing,
- Adhesion/cohesion promoter
- Compound,
- poly(tetrafluoroethylene-co-hexafluoropropylene-co-vinylidene fluoride) (THV (FKM 2)) (CAS 25190-89-0)
- How much the filer reports,
- 150,000 ppm to <300,000 ppm (30%)
HTS 3904691000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Flexibility and adhesion
- What it is doing,
- Adhesion/cohesion promoter
- Compound,
- poly(tetrafluoroethylene-co-hexafluoropropylene-co-vinylidene fluoride) (THV (FKM 2)) (CAS 25190-89-0)
- How much the filer reports,
- 150,000 ppm to <300,000 ppm (30%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Chemical Resistance & Water Repellency
- What it is doing,
- Waterproofing agent
- Compound,
- poly(tetrafluoroethylene) (PTFE) (CAS 9002-84-0)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
- Where in the product,
- Solvent
- What it is doing,
- Solvent
- Compound,
- 1-chloro-4-(trifluoromethyl)benzene (CAS 98-56-6)
- How much the filer reports,
- 10,000 ppm to <150,000 ppm (15%)
HTS 3208900000 · Minnesota disclosure MN-90964Q6 · published 2026-08-07
Other companies that have filed
- Franklin Electric9,127
- Logitech Inc.8,590
- Oriental Motor USA Corp4,047
- Infinite Electronics International, Inc.3,860
- Kaeser Compressors, Inc.3,655
- Global Life Sciences Solutions USA LLC2,694
- Bose Corporation2,017
- Electro-Voice Dynacord LLC1,982
- Vertiv Holdings Co.1,822
- IMI Plc. 1,755
- Amphenol CS1,586
- Hydro-Gear1,511
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.