Incompatible Products

How to Determine Chemical Compatibility:

FBC™ System Compatible Logo

To avoid damage to the pipe and fittings, ancillary construction products coming into direct contact with FlowGuard®, BlazeMaster®, Corzan®, or products made with TempRite® Technology must be chemically compatible. Lubrizol recommends that the compatibility of ancillary products be confirmed with that product’s manufacturer prior to use.

The following products have been found to be incompatible with FlowGuard, BlazeMaster, Corzan, and products made with TempRite Technology. Please note: a product’s absence from this list does not mean that it is compatible. Products in this list are designated with numerals to clarify the reason they are listed as incompatible.  The numerical designations are defined as follows:

Compatibility Designation Description
1 These products were reported to have been used at the site of one or more failed piping systems, and upon further investigation were found to contain the same ingredient(s) which were identified as having caused or contributed to the reported failure.
2 These products have been determined to be incompatible based on laboratory testing conducted by Lubrizol.
3 These products have been determined to be incompatible based on compositional information found in the manufacturer’s labeling or published literature. One or more ingredients reported by the manufacturer is the same as or chemically similar to ingredients identified as having caused or contributed to piping system failure with similar products (the products designated with a 1).
4 These products have recommendations in their manufacturer’s published literature not to use them with CPVC. This may not necessarily reflect their compatibility status. They are nevertheless listed here because, as reported by the manufacturer, they should not be used with CPVC.


Do not use the products below with FlowGuard pipe & fittings, BlazeMaster fire sprinkler systems, Corzan industrial systems, and products made with TempRite Technology. If you have any questions about chemical compatibility, contact the product manufacturer for more information.

Antimicrobial Coatings

Steel Piping with Antimicrobial Coating


Company Product Compatibility Designation
British Gypsum Gyproc Sealant 1
DAP Products, Inc. Alex Plus Acrylic Latex Caulk Plus Silicone 3
DAP Products, Inc. Kwik Seal Tube & Tile Adhesive Caulk 3
DAP Products, Inc. DAP Concrete & Masonry Sealant 3
GP Gypsum, LLC DensDefy™ Liquid Flashing 3
HUBER Engineered Woods ZIP System™ Liquid Flash 3
Intumescent Systems, Ltd. AM Acrylic Acoustic Intumescent Mastic 3
ITW Polymers Sealants Permathane SM7108 Polyurethane Sealant 3
John Wagner Associates Grabber Acoustical Sealant GSCS 1
Knauf Knauf Sealant 3
Master Builders-Admixtures, US, LLC. MaxFlash Flashing Membrane 3
No Nonsense Limited Nemesis Fire Rated Hybrid Sealant 290ML 2
OSI Sealants (Dartworth Company) / (Ohio Sealants) Polyseamseal Tub & Tile Adhesive Caulk 1
OSI Sealants (Dartworth Company) / (Ohio Sealants) Polyseamseal All Purpose Adhesive Caulk 1
OSI Sealants (Dartworth Company) / (Ohio Sealants) Pro Series PC-158 Caulk 1
Pecora AC-20 Acrylic Latex Caulk & Silicone 1
Polyseam Ltd Protecta FR Acrylic Caulk 2
Polyseam Ltd Protecta FR Graphite Caulk 2
Red Devil, Inc. Red Devil 3000 Blacktop & Roof Repair Sealant 3
Sika Corporation Sikaflex® Self-Leveling Sealant 1
Tremco® Dymonic® 100 3
United States Gypsum Sheetrock Brand Acoustical Sealant 3
White Lightning 3006 All Purpose Adhesive Caulk 2

Cleaners, Disinfectants, Mold Inhibitors, Etc.

Company Product Compatibility Designation
Anabec Systems Anabec Advanced Cleaning Solution 1
Anabec Systems Anasphere Plus™ 4
Betco Corporation, Ltd Betco ph7Q Dual 3
Coating Systems Laboratories, Inc. Zoonocide 1
Daycon Products Company, Inc. MDRO/MRSA One Step Disinfectant 3
Daycon Products Company, Inc. Spectra System 4 404 1:28 Neutral Disinfectant 3
Fiberlock Technologies ShockWave 1
Fiberlock Technologies IAQ Advanced Peroxide Cleaner No. 8314 3
Fiberlock Technologies, Inc. Fiberlock IAQ 2000 3
Fire Retardant Coatings of Texas FX Lumberguard 1
Great Lakes Laboratories Clean 'n Etch 3
H. B. Fuller Construction Products Foster First Defense 40-80 Disinfectant 3
Legend Brands ODORx-9-D-9 3
Microban Systems Microban QCG 3
ProRestore Products Mediclean Germicidal Cleaner Concentrate 3
ProRestore Products Dri-Eaz Milgo Plus 3
ProRestore Products Microban Milgo Plus 3
ProRestore Products ProRestore QGC 3
ProRestore Products MediClean QGC 3
Red Devil, Inc. Red Devil Painter's Caulk 3
Serum Products, LLC Serum 1000 1
ServiceMaster Clean Odorgo Smoke Odor Counteractant 1
ServiceMaster Clean Sanimaster 6 1
Waxie Sanitary Supply Waxie HP Disinfectant Cleaner 3
Wepak National Non-Acid Bath Disinfectant 3
X-M Industries Structure-Guard Mold and Mildew Resistant Coating 3

Duct Sealant

Company Product Compatibility Designation
Carlisle HVAC Products CCWI-181 Duct Sealant 3

Dye Penetrants

Company Product Compatibility Designation
Sherwin Sherwin DP-40 3

Fire Stopping Systems

Company Product Compatibility Designation
3M Fire Barrier 2003 Silicone 2
3M Fire Barrier Sealant FD 150+ 3
3M Fire Barrier CP25WB+ 1
3M Fire Barrier Tuck-in Wrap Strips 4
Bostik Limited Bostik Intucrylic Sealant White 3
BritChem Limited FR Intumescent & Acoustic Acrylic Sealant 3
Everbuild Everbuild Fire Mate Sealant C3 1
Firetherm Intumastic HP 3
Fireus Ltd. Safire Intumescent Mastic 3
Fischer Fischer FFB-ES Elastoseal 3
Flame Stop Flame Stop V 1
Hilti CP506 Smoke and Acoustic Sealant 3
Hilti CP606 Flexible Firestop Sealant 3
Hilti CP 672 Speed Spray 3
Hilti CFS-SP WB (DINP) 3
No Nonsense Limited No Nonsense Intumescent Acrylic Sealant 3
Passive Fire Protection Partners 4100NS 3
Promat Grafitex 3
Proset Proseal Plug, Black 1
Proset Proseal Plug, Red 2
Rockwool Rockwool FirePro Acoustic Intumescent Sealant 2
Speedline Speedline Intumescent Fire Protection & Acoustic Sealant 3
USG Firecode® Smoke-Sound Sealant 4

Leak Detector (See also Other Compatibility Concerns)

Company Product Compatibility Designation
Federal Process Co. Gasoila Leak Tech 1
G. F. Thompson Co., Ltd. Masters Leak Detector 1
Radnor Welding Products Radnor® Leak Test Regulator Temperature 1
RectorSeal® RectorSeek™ Low-Temp 1
Unipak A/S Multitec Leak Detecting Spray 3

Pipe Clamp

Company Product Compatibility Designation
Naylon Products Naylon Vinyl-Coated Wire Pipe Hangers 3

Pipe Tape

Company Product Compatibility Designation
Christy's Pipe Wrap Tape 2
Pasco All Weather PVC Pipe Wrap 2
Pro Pak, Inc. Pipe Wrap Tape (black) 3
Wonder No. 413 Pipe Wrap Tape 2

Thread Sealants

Company Product Compatibility Designation
Allied Rubber & Gasket Company (ARGCO) Super Dope 2
Anti-Seize Technology TFE Paste 1
Devcon Super Lock Hi-Strength, Stud Lock Grade 2271 2
Everbuild AC 95 3
Everbuild Fire Sealant 300 3
G.F. Thompson Co., Ltd. Masters™ Pro-Dope™ with Teflon® 1
General Sealant GS-600 2
Hercules Brush-on/Blue Block 2
Hernon Mfg. Inc. Powerseal #932 2
J.C. Whitlam Mfg. Co. Seal Unyte Thread & Gasket Sealer 2
Jet Lube, Inc. Jet Lube V-2 2
Jomar Tighter-than-Tite 2
Loctite Threadlocker242 2
Loctite 577 1
National Starch & Chemical, Permabond Division Permabond LH-050 2
National Starch & Chemical, Permabond Division Permabond LH-054 1
Permabond Engineering Adhesives Ltd Permabond A1044 1
Permatex Company, Inc. Permatex 14H 2
Rule High Performance Teflon Thread Sealaing Compound 2
Saf-T-Lok Chemical Saf-T-Lok TPS Anaerobic Adhesive/Sealant, Industrial Grade TPS 2
SOS Products Teflon Pipe Dope 1
Swagelok Company SWAK 2

Water Additives

Company Product Compatibility Designation
Hazard Control Technologies, Inc. F-500 Multi-Purpose Encapsulator Agent (F-500 Encapsulator Agent, F-500EA, #F-500EA) 3


Company Product Compatibility Designation
PROSOCO, Inc. R-Guard® FastFlash® Roller Grade 3
PROSOCO, Inc. R-Guard® Cat 5® Rain Screen 3
Tremco TREMproof 250GC Single Component Polyurethane 3

Updated: October 26, 2023
Supersedes: May 10, 2023

Legal Disclaimer

The FBC™ System Compatible Program is a resource made available to manufacturers of ancillary products intended to be used with CPVC to help determine whether a product is chemically compatible with Lubrizol Advanced Materials' FlowGuard®, BlazeMaster®, Corzan®, and products made with TempRite Technology. Other manufacturers and/or brands of CPVC piping have not been tested as part of the FBC System Compatible Program. The FBC System Compatible program is, therefore, only applicable to the chemical compatibility of ancillary products with the Lubrizol Advanced Materials brands of FlowGuard, BlazeMaster, Corzan, and products made with TempRite Technology. This distinction is made because every brand of CPVC piping is made with unique compounds, some of which may contain resins with different molecular weights and varying chlorine content. These characteristics directly impact the performance of the resulting product. Similarly, various CPVC products contain different performance additives. This too affects the performance characteristics of the ancillary product. For these reasons, Lubrizol Advanced Materials has no responsibility for any failures occurring as a result of using products in the FBC System Compatible Program with CPVC products other than FlowGuard, BlazeMaster, Corzan, and products made with TempRite Technology.