Hondabond High Temperature RTV Liquid Gasket 08718-0004

Hondabond High-Temp RTV Liquid Gasket - Genuine Honda (08718-0004)

Some sealing jobs don't call for a solid gasket, they call for a liquid one, and on a Honda engine this is the tube you want doing that job. Hondabond is Honda's own liquid gasket, the stuff that seals up cam plugs, oil pans, valve covers, and any mating surface that doesn't run a physical gasket. The reason people swear by it is simple: it's formulated so it won't eat your aluminum the way some sealants can, and it holds up to real engine heat without letting go. Whether you're doing a routine valve cover reseal or buttoning up a built motor, this is the one to reach for.

Why Honda Builders Keep A Tube On The Bench

Ask around any Honda garage and Hondabond is the liquid gasket that keeps coming up. It goes on clean, it seals reliably, and it shrugs off the kind of heat and abuse a track day throws at it. It's non-corrosive, so it's safe on the aluminum surfaces all over these engines instead of slowly corroding them over time. You'll see it used across just about every popular chassis, EF, EG, EK, DC2, and everything since, because it just works and it keeps things leak-free when the engine's working hard. It's genuine Honda (part number 08718-0004), so you know it's the real thing and not a guess.

What It's Good For

Hondabond shines anywhere you've got a clean mating surface and no physical gasket. The usual jobs are oil pan sealing, valve cover gaskets, and cam plugs, but it's at home on any gasket-free surface that needs a dependable, heat-resistant seal. If you're sealing metal to metal on a Honda, odds are this belongs there.

How To Use It

It's easy to work with as long as you prep right. The seal is only as good as the surface you put it on, so don't rush the cleaning.

1. Clean both mating surfaces thoroughly, so there's no oil, dirt, or moisture left behind.
2. Brush or spread a thin, even layer of Hondabond across the surface.
3. Wait about a minute, then bring the two surfaces together.
4. Torque your fasteners as needed within a few minutes of joining them.
5. Squeeze the air out of the tube before you cap it, so it doesn't cure inside the container on you.

Dry And Cure Times

Give it time to do its thing before you lean on it. Here's roughly what to expect, though thickness and humidity will shift it a little:

• Surface dry: about 60 minutes
• Rubberized set: 15 to 16 hours
• Full cure: about 3 days

For the best result, get it torqued down early in that window and hold off on heavy use until it's had its overnight set.

Cleaning Off The Old Stuff

When it's time to reseal down the road, old Hondabond comes off with gasket remover, nail polish remover, or solvents like acetone or methylated spirits. Use a plastic scraper or scourer so you lift the residue without scratching up your metal surfaces.

Common Uses

• Oil pan sealing
• Valve cover gaskets
• Cam plug sealing
• Any other non-gasket mating surface

Hondabond FAQ

What is Hondabond?
It's a high-temp, non-corrosive RTV silicone liquid gasket made for Honda, used to seal precision surfaces where a solid gasket isn't used.

Who makes it?
It's a genuine Honda OEM product, sold under Honda's own part numbers.

How long does it take to dry?
The surface sets in about an hour. For best results, give it 15 to 16 hours before heavy use.

How long until it fully cures?
Around 3 days, depending on how thick you laid it and the humidity.

Can I use it on an oil pan?
Yes. Lay a thin, continuous bead on the clean surface before you install the pan.

How do I remove old Hondabond?
Use a solvent like acetone and a non-abrasive scraper to lift it without marring the metal.

Where can I buy it?
Right here. It used to be a dealer-only item, but you can grab it from us without the parts-counter trip.

Routine maintenance or a full build, Hondabond is the liquid gasket Honda owners trust to keep things sealed and leak-free. It's the genuine article, it's easy to work with, and it holds when the engine's under real load.