bedliner on my undercarrage ?

Hey guys I sand blasted my whole car in and out and the bottom its pretty much a shell I was wanting to spray the bottom side with raptor liner and then install all my front end and rear end what do yall think about this?

 

I wouldnt. No way.

Under coating is a mess enough.

Paint for me. If not Rustoleum Pro, then ICQ makes a great 2 part epoxy paint that is guarenteed under wtaer for 20 years.

 

BS, it makes a perfect undercoating. We first epoxy primed then used a two part bed liner under the body of my Son's rpu. It will be there forever and stays clean, etc. No downside whatsoever.

We had to buy a special gun that goes for about $ 100 but I plan on doing my own rpu the same way as well as my other Sons 46 Ford, and any other projects we have in the future.

If you do it use a quality two part as it will dry harder and tougher. It also has the secondary benefit of strengthening the underside, tying everything together so you get no noise or rattles.

Don

 

Don what kind did u use
I was looking at the raptor liner

 

you can buy the gun to spray this at JC Whitney for around 10 bucks, same as an undercoating gun

 

They are called shutz guns.

 

we sprayed my brother in law's jeep tub with raptor. it looks nice and has held up well. it doesn't really offer any sound deadening qualities though, so keep that in mind. pretty easy to apply as well.

 

im doing this also on my 53. was thinking about doing the frame also.

 

Will be doing that to my '53 chevy.

 

Just know that it is heavy. Line X is like 50# for a 6 foot bed. You start doing the whole underside of your car or inside out you can add some real weight. Not a big deal if you are building a cruiser but something to be aware of for what it's worth.

 

The bottom side of my 63 fairlane has the following: Self etching primer applied to bare metal--- epoxy primer applied over self etching primer---, and finally Herculiner applied on top. I applied it with a siphon fed sandblasting gun with the hose run straight into the gallon can. Turned out really nice and acts as a sound/ heat barrier as well.

 

The complete bottom of my Muntz Jet is Rhino-Lined. I did inside of the fenders too, as they are 'glass and I didn't want to see any stars from rocks or gravel. It quieted it down tremendously, and will outlast the entire car! Once and done...
I love it!

 

this might sound stupid, but what would happen if two years down the road i decide to channel my car or truck and have this bedliner applied to the bottom. will this stuff burn, melt or make a mess otherwise when i cut out and reweld the floor?

 

It has to be taken off before welding for sure. It will make quite a mess.

 

We have been using this for years under bodys and inside fenders. Works great and looks good too. It also cleans up easy with water.

I agree with Don on all his points too. Good advice there.

 

I have the fenders of my 36 Nash done on the underside with Herculiner. It does a great job preventing the inside out "star" cracks. 32,000 miles and it looks like new. I hit a deer last summer and caved in one front fender. I was able to pound out and straighten the fender without any of the liner coming loose. I did weld up a crack and that caused some smoke and and a bic lighter sized flame. No biggie otherwise.

 

Cleaned the underside of mine with a wire brush and grinding wheel then used epoxy primer and finally the liner. Turned out great.

 

We used Gator Guard II. I don't know if this article is where my Son heard about it, but Street Rodder did an article on it. Here is what they said as part of that story...........


"Gator Guard II is a two-part epoxy coating that was originally formulated as a truck-bed-liner material, but it also works extremely well as a premium undercoating. It can be brushed, sprayed, or rolled on. Surprisingly, even brushing produces a uniform, textured satin-black finish ."


You figure, bed liner is made to go over painted truck bed surfaces and adhere like glue, and also to take the abuse of cargo being dragged over it, so it would have to be tough enough to work as a really good undercoating. After we etch primed the metal, then epoxy primed it, and finally put the bed liner on, we could see moisture would never have a chance of getting through to the metal underneath.

It is heavy, and kinda makes a mess on surrounding areas when you spray it (the floor around the body was sticky for a while from overspray) but we masked off every inch of the body with blue tape so none got on anything we didn't want it on. Like I mentiioned, I am so impressed I am going to do the undersides of my rpu with it too, and my Son Don is thinking of doing his 46 Ford Tudor with it too.

Don

 

I have had good luck with the SEM bed liner. It comes in black or a tintable version. All the cars we do get it on the interior of the body as well. Sprayed on both sides of the floors and wheel wells does really well as a sound deadner.

 

i have used it as well, for the undersides of glass fenders and as an undercoating. it has always worked out well and holds up. recently i worked on a friends pickup bed and had to remove some rhino liner/linex[?] before welding and was able to get under an edge and pull it up, the paint underneath was almost perfect, so i would blame that on the prep. on your sandblasted surface you won't have a problem.

 

can we figure how much weight we should expect to add to the car spraying it normal coat
maybe weigh a fender before and after

 

Works bitchin on the brats AKA my Lil U-boat commander's 4x4!!

 

I guess weigh the material before u spray it .. its got to get a lil lighter after it drys couse I had a gallon of raptor liner and it couldn't have weighed more than 7pounds

 

works great.....used it on the underside & some of the engine cmpt on my dad's fairlane..... you can color match it to anything....

 

Used Raptor on both of my model A's easy stuff if I can do it!

 

Under the body it's great, but I wouldn't do the frame or areas where the chassis components attach. It will create some fitment issues at frame points where suspension attaches, so steer clear of the mounting points.

 

Yup, done to my 57 as well, and sprayed the inside of the trunk floor too.

 

I used Lizard Skin...sold by summit Racing. I bought their gun and sprayed both the sound deadener and their heat control product. Worked very well. Water cleanup too!

 

A great way to hide the bottom of a floor patch without sanding filler. And lower your center of gravity, apparently.

 

We used raptor on my willys it came with a spray gun plus it was tintable