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Hercules® 1 Qt Roof Flashing Sealant
Features
- Forms durable, flexible, weatherproof coating
- Long lasting sealant
- No separation; no stirring time; no objectionable odor
- Not for use on rubber boot or flashings
- Sticks to any building material survace: concrete, metal, wood, built up masonry
- Can be applied on cold or wet surfaces
Manufacturer Resources
Product Specs
- Volume:
- 0.048
- Department:
- Plumbing
- Product Group:
- Plumbing
- Product Subgroup:
- Sealants & Fluxes
- Product Type:
- Sealant
- Product Finish:
- Black
- Product Weight:
- 2.4
OATEY O25405 – Frequently Asked Questions
1) Can Oatey Hercules roof flashing sealant be used on rubber pipe boots?
No. The Hercules 25405 roof flashing sealant is specifically not for use on rubber boots or rubber flashings. For a cracked rubber boot collar, replace the boot or use a sealant rated for EPDM rather than this product. It is intended for flashing joints on concrete, metal, wood and built up masonry.
2) Can I apply this roof sealant in cold weather or on a wet roof?
Yes, that is one of the reasons crews keep it on the truck. The Hercules roof flashing sealant can be applied to cold or wet surfaces, so an emergency leak repair after rain or in winter does not have to wait for the deck to dry out.
3) Will the Oatey 25405 stick to a metal flashing on a concrete parapet?
It will. The Hercules sealant bonds to essentially any building material surface the trade puts on a roof, including concrete, metal, wood and built up masonry, and it cures to a flexible weatherproof coating that moves with the joint instead of cracking out of it.
4) What part number do I order for the quart size of Hercules roof flashing sealant?
Order Oatey part number 25405, the Hercules 1 quart roof flashing sealant in black. Single manufacturer number, one size on it, so there is no finish or size suffix to specify.
5) Does the Hercules roof flashing sealant need to be stirred before use?
No stirring. It does not separate in the can, so there is no mix or stand time before you brush it out, and it has no objectionable odor, which matters when you are working near rooftop air intakes or occupied space.
6) How much does the 1 quart can of Oatey 25405 cover and what does it weigh?
It is a 1 quart container, listed at 0.048 cubic feet and 2.4 pounds, so it is a single can sized for a vent stack, a flashing seam, or spot repairs rather than a full roof coating job. For a whole field of flashings, plan on multiple cans.
7) What color does Oatey 25405 roof flashing sealant dry?
Black. That blends on asphalt shingle, built up and modified bitumen roofs and on dark metal flashing, but it will show on light colored membrane or painted metal, so keep that in mind on visible facade work.
How fast can I get the OATEY O25405 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 O25405 come with a warranty?
Absolutely. The OATEY O25405 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 O25405?
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 O25405 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.