How To Apply Boeshield T-9 Internal Bicycle Frame Rust Inhibitor and Protectant

If you have a steel bicycle frame, you need to maintain and protect the inside of the tubing just as well as the outside. This applies to vintage, as well as brand new steel frames. Rust from the inside will eventually destroy a steel frame. We've used both Frame Saver and Boeshield T-9 over the last ten plus years, but have exclusively used Boeshield T-9 for the last three years. There are three reasons why we switched:
1 - Boeshield T-9 has a very low odor and easier cleanup.
2 - Boeshiled T-9 dries more quickly. It typically dries within 3 days depending on temperature.
3 - Boeshield T-9 tends go further and treats more frames (per equivalent can). More uses too.
Product Links*
Boeshield T-9 Aerosol Spray: amzn.to/471kPl8
Extra Long Spray Straws for Bike Fames: amzn.to/3FL9pWs
JB Weld Plastic Epoxy: amzn.to/47gDZmt
FAQ:
Q: Can I use Boeshield T-9 as a frame rust inhibitor on my bike without taking it apart?
A: Yes. Forward to 4:07 in the video. It is much easier to apply a rust inhibitor to a frame that has the bottom bracket and headset removed. But it is possible to get an effective internal coating using exposed vent holes and other openings. If you can remove the wheels and seat post, you can access most of the frame.
Q: How often should Boeshield T-9 be reapplied?
A: It depends on use. In our shop, we recommend that most recreational riders reapply every 3-5 years. This should be good for normal condensation cycles and occasional use in adverse weather and mud. For all season commuters and riders doing touring or bikepacking, we recommend treating your frame once a year. Same goes for anyone who rides near salt water or in winter slush. More often is better than less often in any case.
More questions? Please let us know in the comments. If you would like to see more videos like this, check out more: ‪@ReferenceBicycle‬
Note: PMS Products Inc. (Boeshield T-9) supplied us with free product to use in this video. But as mentioned above, we've been using Boeshield T-9 for many years prior to this arrangement. It's a fantastic, multipurpose product. Visit www.boeshield.com or the ‪@boeshieldt9403‬ TH-cam channel to learn more.
*Please note that we do receive a small commission on products bought through our affiliate links. Using these links gets you the best price possible on these great products, and also helps to support our channel. Thank you!

[@aroundoz]

I had no idea those extension straws even existed. Thanks for the video.

[@ReferenceBicycle]

You bet! Thanks for watching!

[@EriebyCycle]

Yo! That super spray tube is a great idea!

[@ReferenceBicycle]

That’s the key. Otherwise it’s “spray and pray”. Thanks!

[@GringineerCycles]

T9 is the best!

[@ReferenceBicycle]

I like using it a lot. Thanks so much for checking it out!

[@pictor69]

Very helpful video thank you.

[@ReferenceBicycle]

Glad it was helpful! Thanks for watching!

[@ziyanide]

Would it make sense to apply rust converter sprays first or not necessary? Thinking about doint this to my Karakoram. Thanks for the video!

[@ReferenceBicycle]

It’s not necessary. You could either use Boeshield or FrameSaver on its own without a rust converter first.
If you do use a rust converter, you would still need to add a coating over it to keep it from rusting again. Also, you want to avoid getting rust converter on paint or powder coating.
My opinion is to just use a frame preservative spray alone and not add an extra step. Thanks so much for watching. I’m glad it was helpful.