Hot Rods Using Bed Liner on Fenders

I had my Model A altogether last summer and now I have it blown apart for paint. I'd like to hear some opinions on spraying pickup bed liner on the underside of the fenders. My buddy built a 34 Ford Cabriolet about 10 years ago and he told me that he wished he had done it.

Any opinions or experiences?

 

I used the spray can stuff on a ‘59 Chevy PU. Held up fine for the 10/12 years I had it.

 

I brushed on rustoliem bed liner on inside of my 56 F100. A buddy also did it on his 40 Ford. No problems- hopefully it may help a upwards dent from happening

 

My last couple deuces had bed liner sprayed under the fenders and floor. Looked good and has held up well. I used to us 3M Body Shutz but it's currently priced like gold.

 

It works very well , but makes the fenders heavy and your wallet light !!!

 

Prep is everything. Paint a black base coat first so any areas that only get a thin coat still look ok. I have sprayed bed liner a few times and if you dont do a base coat you will end up using a lot more bed liner trying to stop the other color showing through. I have used the raptor air gun kit and the herculiner rattle cans.

 

I've used SEM Chip Guard a couple times. Worked well and isn't heavy like bed liner.
https://semproducts.com/product/chip-guard#product-details

 

I compensated for the extra weight by over boring the Hemi and adding 10:1 CR to handle the extra weight.
I did Rhinoliner on all 4 fenders on the underside, the bottom for the cab, the running boards inside and out and the tranny tunnel cover both sides.

 

Pics of boards

Fenders

Cab

All made from real Rhino. Not the horn, that is just cruel. We had Rhino burgers for a month!

 

Not exactly the application you are interested in, but tangentially related, as I used Rhinolining on my running boards instead of rubber and it has held up real well.

 

I also used the SEM chip guard but only in the center of my fenders, easy on a 27 T. That was in 2012 and 30,000 miles ago and so far no star breaks or other damage.

 

On my '40 pickup, we used Raptor, goes on like paint, looks great. Did the underside of the floor as well.

 

I had Armorthane sprayed on the underside of my fenders when I was building my car. Its been on the road for 27 years and 45000 smiles. There is not one mark from rocks striking the underside, and some of those miles have been on gravel roads.

 

I think the old 0.030 over 401 nailhead can handle extra weight. Thanks for the reply.

 

If you want to see what the Raptor looks like, you are welcome to drive over the hill, and take a look.

 

. . . and when it comes to running boards, it sure looks better than having step plates (usually not located where you can step). And then, there's the guy that puts step plates on top of rubber-covered running boards.

(I feel so much better now!)

 

I prefer WURTH SKS stone guard instead of bed liner underneath.

 

I used rubberized asphalt undercoating, it absorbs the rock impact. I don't know whether the bed liner would do the same, which to me is what you want a coating inside the fenders to do.

 

If only you were there when he was building it to tell him how to do it right.

 

I seen video on how well bedliner protects. They build 2 block walls and coat 1 with bed liner then blast them with dynamite.
1 wall is distroyed and 1 wall is not

 

Realistically, most of the blocks are probably destroyed. The liner just holds the small pieces together, while the unlined wall fell apart. Strong stuff for sure, but being able to hold the wall together enough to remain standing isn't the same as preventing damage.

 

I’d do it if it were my car…

 

Sure, it's rubberized so it will absorb some of the impact. Whether it will absorb enough to keep your fender and paint safe was my point. I know the undercoating I use does. That's what it's intended for.

The one on the concrete block wall not damaging the wall at all seems a bit far-fetched.

 

Had linex put under the fenders on my 34 Ford over ten years ago.... No issues...

 

I finally got around to spraying the bed liner on the fenders. I used the Raptor brand that uses a hardener. Like most things, preparation was the biggest part of the work. It is a lot easier to spray than paint. One more fender and I get to start body work on the 1/4 panels and the cowl. I just hate body work.

 

my 40 pick up has fiberglass rear fenders , used bed liner , just for a little added protection against small stone chipping ... seems to work for me ....

 

Looks great !

 

my friend would cuss you guys out doing this. he has been months taking the bed liner stuff off the model a fenders he bought. i told him to sandblast them but he thought it would easy. haha