• Hello there guest and Welcome to The #1 Classic Mustang forum!
    To gain full access you must Register. Registration is free and it takes only a few moments to complete.
    Already a member? Login here then!

Spray coatings for undercarriage

Horseplay

Horseplay

I Don't Care. Do you?
Donator
What have you guys used to coat the underside of your cars? I am looking at using a spray 2 part bed liner to coat the inner fenders, wheel wells and likely entire underside of mine. Any thoughts or recommendations? Hoping to start on this this weekend.
 
Never used it myself yet, but I've heard a,lot of people like to use lizard skin coating.

From infinity and beyond
 
I used Second Skin Audio's brush on sound and vibration deadener in the fender wells then sprayed the whole bottom side and engine bay with Sem's trim black.
 
We had the entire underside done on the fastback. I can't remember the product the body shop used but it is very durable. Since we drive the car all over, it does a great job protecting the bottom and wheel wells from rock chips as well as acts like a sound deadener. I can chase down the brand if you like. It was not bedliner, but a similar product made for this purpose. At least that is what I was told!
 
I should have mentioned the entire car (in and out) was sprayed in 2K epoxy primer. As hard as that stuff is and its semi rough surface, I presume and hope I don't need to do any scuffing prior to application. Right?

Right now my research has me leaning toward Raptor bed liner. It seems more application correct for exterior use. The interior is all covered in Dynamat Extreme so I do not feel a need for additional sound or thermal insulation. Agree? Disagree?
 
"cmayna" said:
I used Second Skin Audio's brush on sound and vibration deadener in the fender wells then sprayed the whole bottom side and engine bay with Sem's trim black.
Click to expand...
Craig,

You've got a fair amount of drive time on Shag now. Have you looked at how the Second Skin is holding up?
 
"kb3" said:
We had the entire underside done on the fastback. I can't remember the product the body shop used but it is very durable. Since we drive the car all over, it does a great job protecting the bottom and wheel wells from rock chips as well as acts like a sound deadener. I can chase down the brand if you like. It was not bedliner, but a similar product made for this purpose. At least that is what I was told!
Click to expand...
This is exactly why I want to do mine. A long time ago I had a tire kick a rock or something up and give me a nice pimple in the top of a fender. DO NOT want that to happen again with this car.
 
Make sure you coat the underside of the front fenders (above the wheel) really good. I didn't do that and I have tiny rock dents poking up on top of the fenders from the sticky track tires tossing debris around.
 
"msell66" said:
Make sure you coat the underside of the front fenders (above the wheel) really good. I didn't do that and I have tiny rock dents poking up on top of the fenders from the sticky track tires tossing debris around.
Click to expand...
Like I said, been there done that unfortunately. I've even considered putting a strip of Dynamat across almost the length of the underside of the fender top. I know others who have done it. I'd rather not and just put a good coating of something instead. Would look better. Yes, I do peek under the occasional fender. After all, I was the kid in kindergarten who peeked under girls dresses...but that's another story.
 
"Horseplay" said:
"cmayna" said:
I used Second Skin Audio's brush on sound and vibration deadener in the fender wells then sprayed the whole bottom side and engine bay with Sem's trim black.
Click to expand...
Craig,

You've got a fair amount of drive time on Shag now. Have you looked at how the Second Skin is holding up?
Click to expand...

200 miles short of 10K :thum. The Second Skin is holding up beautifully.
 
I used raptor liner on my Volvo build and like the end result. It has a nice texture and is gloss black. The only thing I don't like is it is flammable. I forgot to do some welding and it catches fire at that spot. It did not spread and went out quickly but makes me wonder if it happens during an accident.


Darreld
Sent from my iPhone using Tapatalk
 
"68EFIvert" said:
I used raptor liner on my Volvo build and like the end result. It has a nice texture and is gloss black. The only thing I don't like is it is flammable. I forgot to do some welding and it catches fire at that spot. It did not spread and went out quickly but makes me wonder if it happens during an accident.
Click to expand...
Any product like that will burn to some degree. Obviously welding introduces a heat source it should never see in normal operation.
I found a ton of great review info on Raptor. Very popular with the hot rod crowd. I placed an order for some just a little while ago.
 
Raptor liner sounds familiar. That may be what is on my car. Holds up well as long as you don't get brake fluid on it.
 
"Horseplay" said:
Sven

That was very helpful! What did you use to scuff the primer?
Click to expand...

I like to scuff with a fairly aggressive Scotch Brite pad (like the red). This does a nice job putting tooth to the surface without sanding through like sandpaper easily does. Works great!
 
You must log in or register to reply here.
Back
Top