OATEY 30115 Hercules® 32 oz. B...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$75.71
$25.71

OATEY 30115 Hercules® 32 oz. Boiler Liquid

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Model: 30115
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$75.71
$25.71
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Hercules® 32 oz. Boiler Liquid
  • Features

    • For warranty product details, refer to the Oatey limited Warranty document
    • Will not clog or coat submerged hot water heating coils, controls, vents or valves
    • Will not cause priming or foaming
    • Prevents steam boiler surging
    • Contains no petroleum distillates and is safe to use in boilers and systems with plastic or rubber components
    • Makes a strong, lasting repair on difficult leaks in steam boilers
    • Larger 1 gal size
    • Resists high pressure and is not affected by boiler cleaners


30115 - spec sheet

Manufacturer Resources

Product Specs

Volume:
0.066
Department:
Plumbing
Product Group:
Plumbing Chemicals
Product Subgroup:
Sealants & Fluxes
Product Type:
Flux/Compound
Product Finish:
Purple
Product Material:
Liquid
Product Weight:
2.65

OATEY 30115 – Frequently Asked Questions

1) What does Hercules Boiler Liquid actually do in a steam boiler?
Hercules Boiler Liquid (Oatey 30115) is a liquid boiler treatment that seals difficult leaks in steam boilers and stops steam boiler surging. Oatey describes the repair on hard-to-seal leaks as strong and lasting, and the product resists high pressure and is not affected by boiler cleaners, so a later cleaning cycle won't undo the seal.
2) Will boiler sealer clog my hot water heating coils or gum up the controls?
No. The Hercules 30115 boiler liquid will not clog or coat submerged hot water heating coils, controls, vents or valves, and it will not cause priming or foaming. That is the main reason maintenance crews choose it over heavier stop-leak compounds on systems with tankless coils and float controls.
3) Is this boiler liquid safe in a system with plastic or rubber parts?
Yes. The Hercules boiler liquid contains no petroleum distillates, so it is safe to use in boilers and systems that have plastic or rubber components. Petroleum-based sealers are the ones that attack gaskets and seals.
4) Can I use this on a hot water (hydronic) boiler, or is it steam only?
Both. Oatey states the product makes a strong, lasting repair on difficult leaks in steam boilers and prevents steam boiler surging, and it is also cleared for systems with submerged hot water heating coils, which it will not clog or coat. So it is used on steam and on hot water heating systems alike.
5) Will a boiler cleaner flush out the sealer after I treat the system?
No. Hercules Boiler Liquid is not affected by boiler cleaners, and it also resists high pressure. You can run a cleaner in the system without losing the leak repair.
6) What size container does Oatey 30115 come in?
Model 30115 is the 32 oz (one quart) bottle of Hercules Boiler Liquid, shipping at about 2.65 lb. It is a single-model item, so 30115 is the only part number to quote.
7) What does Hercules Boiler Liquid look like once it's in the system?
It is a purple liquid. The color makes it easy to confirm the dose went into the system when you are charging through a skimmer or wet return tapping.
How fast can I get the OATEY 30115 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the OATEY 30115 come with a warranty?
Absolutely. The OATEY 30115 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the OATEY 30115?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the OATEY 30115 from ZenSupply?
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