< Thread Sealant Paste

Hercules® Pro Dope®

Hercules® Pro Dope® is an oil-based thread sealant with a uniform, smooth consistency that ensures an easy, drip-free application. Use in pipe systems carrying water, natural gas, air, steam, ammonia, brine, diluted acids and alkalis. Both lead-free and non-toxic, Pro Dope is FBC-approved for use with BlazeMaster, Corzan and FlowGuard CPVC piping systems and can also be used with certain PVC piping (confirm compatibility with manufacturer). This pipe joint compound wipes away with ease, and its gray color blends in with metal piping for improved aesthetics. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

Available in 5 variations

Key Features & Benefits

• Smooth and uniform consistency for easy application
• Prevents rust and corrosion
• Use in pipe systems carrying water, natural gas, air, steam, ammonia, brine, diluted acids and alkalis
• FBC-approved for use with BlazeMaster, Corzan and FlowGuard CPVC piping systems
• Can also be used on compatible PVC piping
• Suitable for use in temperatures ranging from 0°F to 350°F
• Withstands air and steam pressure up to 200 PSI and liquid pressure up to 250 PSI
• Will not leak or drip out of the container
• Resists hardening and cracking
• Wipes clean from hands

Specifications

Color:	Gray
Brand:	Hercules
Maximum Application Temperature °F:	122°F
Maximum Application Temperature °C:	50°C
Product Type:	Soft Set
Material Compatibility:	Aluminum
Material Compatibility:	Brass
Material Compatibility:	Copper

Material Compatibility:	CPVC
Material Compatibility:	PVC
Material Compatibility:	Stainless Steel
California VOC Compliant:	Yes

More Specifications

Technical Resources (8)

• Submittal
• Submittal
• SDS

• SDS Spanish
• FAQ
• LEED Green Sheet
• Product Instructions
• UL Greenguard Gold Certification

More Downloads

Available in 5 variations

Frequently Asked Questions

What pipe joint compounds should I use in an approved piping system filled with natural gas?

The following Oatey pipe joint compound products are approved for use in this application: Oatey Great Blue, Hercules Block, Hercules Grrip, Hercules Megaloc, Hercules Pipe Joint Compound, Hercules Pro Dope or Hercules Real-Tuff are all safe for this application. 

What is the curing time for pipe joint compound?

Under normal pressures the pipe joint compounds does not need a curing time. If the pressure in the lines is 125psi or higher, the recommended cure time is 4 hours before initiating pressure. Call Oatey Customer Service when in doubt.

Can pipe joint compound and thread sealant tape be used on the same joint?

Yes. Once the male threads are wrapped properly you can apply a coating of pipe joint compound over the thread sealant tape before assembling the joint. Remember that you only apply pipe joint compound to the male threads.  

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