Products
Brands
Community
Support
Replacement Parts

Is Ready to Use Thymol compatible with Fountainhead Group sprayers?

Ready to Use Thymol is compatible with Fountainhead Group sprayers that use Buna seals, including 24 models in our lineup. It is not recommended for sprayers with Viton, Viton Extreme, and EPDM seals. Always confirm against the chemical's Safety Data Sheet before use.

Seal-material verdict

FGI sprayers use one of four seal materials. Here is how Ready to Use Thymol rates against each.

  • Buna Compatible
  • Viton Not compatible
  • Viton Extreme Not compatible
  • EPDM Not compatible

24 FGI models have seals rated for Ready to Use Thymol

These models use Buna seals, which are rated compatible with this chemical.

Commercial 1-Gallon Buna seal #190363
Commercial 2-Gallon Buna seal #190364
Commercial 3-Gallon Buna seal #190365
Home & Garden 48 oz. Buna seal #190424
Home & Garden 1-Gallon Buna seal #190502
Home & Garden 2-Gallon Buna seal #190503
Home & Garden 1-Gallon Buna seal #190458
Home & Garden 2-Gallon Buna seal #190254
Home & Garden 1-Gallon Buna seal #190259
Home & Garden 2-Gallon Buna seal #190260
Home & Garden 1-Gallon Buna seal #190315
Home & Garden 1-Gallon Buna seal #190473
Home & Garden 2-Gallon Buna seal #190474
Home & Garden 1-Gallon Buna seal #190486
Home & Garden 2-Gallon Buna seal #190487
Home & Garden 1-Gallon Buna seal #190500
Cart 3-Gallon Buna seal #190620
Cart 3-Gallon Buna seal #190619
Commercial 1-Gallon Buna seal #190498
Commercial 2-Gallon Buna seal #190499
Cart 3-Gallon Buna seal #190618
Cart 3-Gallon Buna seal #190617
Home & Garden Buna seal #190435
Home & Garden 48 oz. Buna seal #190518
Compare FGI sprayers side by side Specs and pricing for the full lineup.

Important Safety Notice

Always read the chemical manufacturer's label, instructions, and Safety Data Sheet (SDS) before use. Use of chemicals not intended for your sprayer may void the product warranty and could result in injury or damage. When in doubt, call us at 1-800-311-9903.

Compatibility ratings are based on seal-material chemical resistance from the Parker O-Ring Handbook (ORD-5700, Section VII), the Chemours Viton Chemical Resistance Guide, and the DuPont Kalrez Selector, reviewed against FGI engineering records. Always verify against the specific chemical's Safety Data Sheet before use.