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OATEY 15808 Hercules® 16 oz. Megaloc® Multi-Purpose Thread Sealant
Model: OAT-15808
Hercules® 16 oz. Megaloc® Multi-Purpose Thread Sealant
Features
Sets soft with no cure time required
In-lid applicator
Wipes clean from hands and tools and washes out of clothes
Not recommended for...
OATEY
$90.00
$40.00
Hercules® 10.1 oz. High Temperature Red Sealant
Features
- Flexible, durable, water-proof seal
- Performs at temperatures ranging from -80 to 600 degrees F
- General purpose, one component 100% RTV acetoxy silicone sealant designed for high temperature applications
- For high temperature applications
Manufacturer Resources
Product Specs
- Volume:
- 0.01
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Sealants & Fluxes
- Product Type:
- Sealant
- Product Finish:
- Red
- Product Weight:
- 0.75
OATEY O25666 – Frequently Asked Questions
1) What temperature range can the Oatey Hercules 25666 red silicone sealant handle?
The Hercules high temperature red sealant performs from -80 to 600 degrees F, which is why it gets used on flue and exhaust connections, oven and boiler gasketing, and other hot-side work where a standard household silicone would break down.
2) Is the Oatey 25666 Hercules sealant a one-part silicone or does it need mixing?
One component. It is a 100% RTV acetoxy silicone that cures on exposure to air straight from the tube, so there is no catalyst or mixing step on the job.
3) How big is the tube of Oatey Hercules high temperature red sealant and will it fit a standard caulk gun?
It is a 10.1 oz cartridge, the standard caulking-gun size, and the net weight is listed at 0.75 lb. Any conventional quarter-barrel caulk gun takes it.
4) Can I use red high temp silicone as a water-tight seal, or is it only for heat?
Both. The Hercules red sealant cures to a flexible, durable, water-proof seal, so it holds up where there is moisture as well as heat. The high temperature rating is what sets it apart from general-purpose silicone, not a limit on wet-area use.
5) Is an acetoxy cure silicone safe to use on every surface?
Acetoxy-cure silicones release acetic acid as they set, so they are intended for general purpose and high temperature sealing rather than contact with sensitive metals or mirror backing. For those surfaces a neutral-cure silicone is the right call instead. On the typical gasket, flue, and metal-to-metal heat joint this product is sold for, the acetoxy cure is standard.
6) What color does the Oatey 25666 sealant cure to, and does that matter for finished work?
It cures red. That is the standard identifier for high temperature silicone, which is useful for an MRO crew that wants the hot-side joints visibly distinguishable, but it means it is a poor choice anywhere the bead will be seen on a finished fixture or wall.
How fast can I get the OATEY O25666 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 O25666 come with a warranty?
Absolutely. The OATEY O25666 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 O25666?
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 O25666 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.