Bedliner in fenders?

[bowt1ed]

As I'm wrapping up the body work on my TF (finally) I'm looking at applying 2 part bedliner to the underside of my fenders. I used Hippo Liner for the cab bottom and happy how it came out. Anyone used bedliner on theirs, or what has worked well?

Thanks, Jim

[mr48chev]

Never tried it but it might help prevent or lessen those little rock and debris marks that show up on the outsides of the fenders from stuff off the tires hitting on the inside.

[Erics51chevy]

Sounds like a good idea to me!

[_Ogre]

i took many body panels in to get line-x sprayed on the underside: 4 fenders, innerfenders, cab bottom, cab back and bed steps
it appears to be doing what i intended, keep rust out underbody

this pic shows the underside of my spare tire fender



line-x on cab (sort of follows the inner fender line)



this is the back of the cab while building the sub enclosure

[roger55]

Herculiner.

Easy roll-on application. I'd use again in a heartbeat.

[Jemezcrusher]

Friend of mine did his fender wells and running boards. Has held up well. He uses as his every day vehicle and still looks great

[56hotrodred]

I have used rattle can spray on bed liner on my work/bush trucks for years and have loved it because every once in a while it could be touched up easily.

I am thinking of getting bottom of my 56 cab linexed and probably doing fenders myself with something. Lots of good 2 part spray on stuff out there also if a person wants to upgrade from the rattle can route.

In any case great idea to take care of these areas with something.

[roger55]

IMO, a 2-part bedliner is overkill for an underbody. Great for pickup beds because it looks the best. For functionaliy, ease of application and reasonably good looks, the roll-on one part Herculiner product is really tough to beat.

[hogfarm]

I use two part "Raptor" on underside of cab and fenders,works great,helps with the little rock chips

[roger55]

Originally Posted by 56hotrodred

I have used rattle can spray on bed liner on my work/bush trucks for years and have loved it because every once in a while it could be touched up easily.

Which one have you used?
I've tried a few and haven't liked any of them.
The Rustoleum Rubberized ones were worthless and a complete waste of money. The 3M was thin and not very useful either. Seems like I've tried a couple of others but never been impressed with anything.

[56hotrodred]

I have typically used the spray on bed liner from NAPA. Just makes sure to sand surface and that it is dry. I would have to touch up some areas once a year but it seemed to work alright.

[_Ogre]

i tried the spray bomb bedliner, like any spray bomb it is pretty light and scratched of easily with a fingernail

[Foot Stomper]

Any two part Bedliner will perform nicely so long as it's not applied to bare steel. Best practice would be to paint, scuff and apply the Bedliner.
Stay away from aerosol or moisture cure 1K and you'll be fine. They are all essentially the same thing... really just urethane thinned down. Don't fall for Kevlar reinforced or other gimiks... stay away from Hippo liner if exposed to sun as its an epoxy and will fade if in direct sun light.

[Foot Stomper]

Originally Posted by Foot Stomper

stay away from Hippo liner if exposed to sun as its an epoxy and will fade if in direct sun light.

My bad. I should not have referred to Hippo as an epoxy. Dominion Sure Seal makes both Hippo and Gator Guard and it's the Gator Guard that's epoxy. ...it will fade.
Hippo is urethane so is UV stable.

[OrrieG]

I used a rattle can type from the paint store and has held up good. It has some flexibility and healing ability. I put in on the bottom of the cab, up the firewall to the point it turns vertical and inside of the front and back fenders. My truck was originally undercoated, but had one front fender replaced along the way that was not. There was a significant amount of eyebrow and surface rust on the not coated one. If you do the lower firewall make sure you keep the weep holes for the vent area open (look like little flaps with a sheet metal screw at bottom of cab hinge area).

[Jesse Z]

Keep in mind how difficult epoxy-based bedliner will be to work around or remove if you ever have any bodywork to perform.

[vintovka]

Was told some use dry ice to remove bedliner and maybe 2 part epoxy.

[bowt1ed]

Thanks for all the feedback. Yes, I applied the Hippo liner to the underside of cab over epoxy primer, and although haven't had it on the road yet, am happy with results. Based on great feedback here, I believe I will do the same with my fenders. Thanks much!

BTW - got my baby back on the chassis this weekend, after a year of body work. Now the work really begins!

Cheers, Jim