Skip to Content

DIY Spray Bed Liner Jeep Wrangler Interior Tub

In this tutorial, I show you how to apply DIY spray bed liner for Jeep Wrangler interior tub using the U-POL Raptor liner kit.

Additionally, learn many useful tips DIY truck bed liner such as preparation, how to remove rust, and more.
So, let’s dive in with a list of tools and materials I used spray bed liner in my Jeep Wrangler interior.

Tools and Materials

Raptor Tintable Bed Liner Kit w/ Spray Gun (Beige)
Spray Gun (buy if not included w/ kit)
Dewalt Grinder
Grinding Disc
50 grit metal sanding disc
POR15 Kit with Degreaser & Metal Prep
Rotary Sander
Sandpaper
Retractable Air Hose
Air Compressor
Rubber Gloves
Respirator
Painters Tape
Plastic Drop Cloths
Epoxy Putty
Chop Brush

Jeep Wrangler Interior Replacement Bolts & Screws

Bolt Organizer
Anti Seize Lubricant
Bolt Gauge
PB Blaster
Mini Torch
Torx Bit Set
Mini Torch
Socket Set
1/2″ Drive Click Torque Wrench
Rear Door Hardware bolts 1/4″-20 x 3/4″
Rear Seats to Body 3/8″-16×1.25″
Front Seats to Body 7/16-20 x 1.25″ (qty 1)
Front Seats to Body 8mm – 1.25 x 30mm (qty 3)
Spaced 7/16″ – 20 x 1.37 – Seat Belt Bolts
Clutch Floor Assembly Screws
1/4″ washers
3/8″ washers
7/16″ washers

Video Tutorial

There are several things which are difficult to fully explain with words and images, so be sure to check out the video tutorial below!

My 1992 Jeep Wrangler YJ Islander

I purchased a 1992 Jeep Wrangler YJ Islander recently to use as a beach cruiser.

Obviously, we chose this Jeep Wrangler YJ Islander because it fit our lifestyle (beach/island) and had all original factory parts. 

Also, it didn’t have things we didn’t want or need such as a lift kit, massive tires, and extravagant mods.
We like the classic look of this YJ Islander along with the everyday wear that comes with it..

Jeep Wrangler Floor Rust

First, the YJ Islander was in great shape with no rust on the frame.

However, the carpet was nasty and the interior floors had rust along with small holes.
Most of the rust was at the driver and passenger side interior tub caused by 26 years of wet feet.

After many hours of research on protective coatings, I decided to install a DIY spray bed liner in the Jeep Wrangler interior tub.
So, I purchased the Raptor Tintable Spray Bed Liner Kit (Beige) and started preparing the surface.

Prepare Jeep Wrangler Interior for Spray liner

Once summer ended, I parked my Jeep Wrangler YJ Islander in my workshop to prep for the DIY spray bed liner.
Most importantly, I encourage you to pay attention to the preparation stage of this project.

how to spray bed liner in a jeep wrangler interior - parked in workshop

Remove Jeep Wrangler Interior Parts

First, I removed everything inside of the Jeep interior.

This included the carpet, front seats, rear seat, seatbelts, center console, side doors, rear door, and any other hardware I was unable to tape off.

Remove Seats and Seatbelts

To start, I removed the front seats and seatbelts.

I realized very quickly this project was going to take much longer than I anticipated.
Why?
Each bolt took me an average of 10 minutes to remove.
More on rusted bolts in a later section.

Jeep Interior Carpet Removal

Once the seats were removed, I easily removed the carpet.

The carpet was filthy and dry rotted, but it was held in place by adhesive strips and cut to fit the Jeep.
Ultimately, the carpet can be removed with the seats in place just as easily as with the seats removed.

Organize Jeep Interior Bolts & Screws

First, I used a bolt organizer along with sticky notes to keep track of each bolt I successfully or unsuccessfully removed. 

My Jeep contained many different bolt shapes and sizes.
For example, the 4 bolts which secure the front seats to the interior tub are 3 of one type and 1 of another type.

As a quick tip, I used a nut bolt thread gauge to determine bolt sizes.

Only a few bolts in my Jeep were the type/size they were supposed to be according to the official manual. 
As a result, I wasted time and money purchasing incorrect bolts.

So, I highly recommend you spend a few dollars and purchase a bolt gauge to determine the exact size of the removed bolts. 

Bolt gauges help you determine the following bolt most important attributes in order to purchase a suitable replacement:

  1. SAE (US) or Metric
  2. Thread Pitch
  3. Diameter
  4. Length

Furthermore, your local big box stores (HD or Lowes) will likely not have the bolts you need. 
I purchased the bolts I needed from Amazon. 

Also, I purchased Grade 8 bolts as replacement bolts.
For your convenience, I’ve included a list of replacement bolts I purchased along with other useful tools/materials for this section below.

How to Remove Rusted Bolts from Jeep

The bolts used in my Jeep and many older Jeeps (and maybe newer ones as well) are Torx bolts, which are likely rusted and very difficult to remove.

I included 2 quick tips to help remove rusted bolts from a Jeep.
Try these tips before using a breaker bar and violently tugging on the bolts to remove them.

PB Blaster

First, apply PB Blaster to the perimeter and under the bolt if possible. 
Next, allow it to sit for 24 hours.
Then, try to remove the bolt by slowly turning with a breaker bar.

Apply Heat to the Bolt

If PB Blaster doesn’t work, use a mini torch on the head of the bolt.
Heat the bolt for 45 to 60 seconds.  Then, try to remove it.

Ultimately, there is a 75% chance the bolt will break if the Jeep is 10+ years old.
So, be patient and try your best to remove it the natural way (i.e. without breaking it).

Jeep Wrangler Interior Replacement Bolts & Materials

Bolt Organizer
Bolt Gauge
PB Blaster
Mini Torch
Torx Bit Set
Mini Torch
Socket Set
1/2″ Drive Click Torque Wrench
Rear Door Hardware bolts 1/4″-20 x 3/4″
Rear Seats to Body 3/8″-16×1.25″
Front Seats to Body 7/16-20 x 1.25″ (qty 1)
Front Seats to Body 8mm – 1.25 x 30mm (qty 3)
Spaced 7/16″ – 20 x 1.37 – Seat Belt Bolts
Clutch Floor Assembly Screws
1/4″ washers
3/8″ washers
7/16″ washers

Prepare Jeep Interior Tub for Spray Bed Liner

First, I prepared the interior tub by removing old bondo and paint.

The interior tub must be clean of all loose debris.
Essentially, this allows the Raptor DIY Spray Bed Liner to properly adhere properly.

My Jeep Wrangler YJ Islander had a coat of black paint or something else that was applied very poorly.
Also, bondo was used in various places to patch holes.
The bondo was also applied poorly with many high spots.

I had my work cut out for me in order to get this surface ready for spray on bedliner.

Remove Rust from Jeep Interior Tub

First, I needed to remove the loose and flaking rust for my Jeep.

So, I used my angle grinder with a grinding disc to knock down the high spots. 
I lightly went over the surface in order to not puncture more holes in the interior tub.

Next, I used my 40 grit metal sanding disc to get a smooth surface.

how to spray bed liner in a jeep wrangler interior_sand metal

Keep in mind, perfection is not needed in this step.
Complete rust removal was not necessary as I use a product in a later step to address this issue.

The goal is to simply remove the loose rust and achieve a somewhat smooth surface.

Fill Small Holes in Jeep Wrangler Tub

As I previously mentioned, the driver side and passenger side floor had various small holes I needed to patch.
Each hole was the size of a shirt button or smaller.

Instead of using bondo on these small areas, I used an epoxy filler made by POR15. 
I highly recommend this product because it worked very well.

Sand Smooth Areas and Remove Tacky Strips

Before sanding, I used adhesive remover to remove the tacky strips used to hold the carpet in place.
I sprayed the tacky areas and removed the material with a scotch brite pad or flat head screwdriver.

The original paint was in very good shape in the rear of the Jeep.
So, I used my random orbital sander with 80 grit sandpaper to lightly scuff up these areas and remove embedded dirt.

how to spray bed liner in a jeep wrangler interior_sand smooth areas

 

Degrease and Etch Jeep Interior Tub

Before I applied POR15, I prepared the surface with the included degreaser and metal etch in the POR15 kit.

how to spray bed liner in a jeep wrangler interior_10

First, my son and I rolled the Jeep out of the garage and I sprayed degreaser on the entire interior tub. 
I let this sit for 15 minutes.

In the meantime, my son and I played a friendly game of HORSE. 

We are a competitive family, so there is no such thing as a ‘friendly’ game of anything at my house.
By the way, I lost.

Next, we rinsed the degreaser and allowed the interior surface to dry for a few hours.

how to spray bed liner in a jeep wrangler interior_rinse degreaser

Then, I applied the metal etching with a spray bottle and made sure to coat the exposed metal.

how to spray bed liner in a jeep wrangler interior metal etching

My son and I let this soak for 30 minutes, rinsed with water, and rolled the Jeep back into my workshop.

how to spray bed liner in a jeep wrangler interior_14

 

Jeep Wrangler Interior Rust Prevention

First, I used POR15 on the interior floor with rust and any other areas with minor rust.

Although POR15 is normally used on the undercarriage and frame, it works just as well any place rust exists.

POR15 is a rust-preventive paint designed for application directly on rusted or seasoned metal surfaces. Furthermore, it dries to a very hard, non-porous finish that won’t chip, crack, or peel.

Additionally, it prevents rust from reoccurring by protecting metal from further exposure to moisture.

Apply POR15 to Jeep Interior Tub Rust

First, I applied POR15 to each floor board and to all areas with surface rust with a chip brush.
POR15 is really thin and goes a very long way as I only used 2 small cans.

Furthermore, POR15 dries quickly and it is very hard.
Be sure to wear a respirator and gloves when applying POR15 as it has a very strong smell.

Next, I allowed this to dry overnight and applied a second coat making sure to get all areas I missed the day before.

Hand Sand POR15

Once the POR15 was completely dry, I lightly hand sanded with 80 grit sandpaper to lightly scuff the smooth surface. 
Ultimately, I did this to ensure the DIY spray bed liner would properly adhere to the surface.

Cover and Mask Jeep

First, I used painters tape and plastic tarps to cover the Jeep and surrounding areas. 
This was my first time applying spray bed liner, so I was unsure about the overspray.

As it turned out, the overspray was not bad at all.

Next, I used orange ear plugs and rolled painters tape to cover the bolt and screw holes in the interior of the Jeep.

how to spray bed liner in a jeep wrangler interior_prepare surface for bed liner

 

Raptor Liner for Jeep Wrangler Interior Tub

Finally, it is time to spray bed liner in my Jeep Wrangler interior tub.

The Raptor Spray Bed Liner Kit comes with 2 bottles, 2 hardener cans, 2 bottles of beige tint, and a spray gun.
Ultimately, this kit gives me 2 full coats and I hoped this would be enough for the interior tub of my Jeep Wrangler YJ Islander.

How to Mix & Tint Raptor Bed Liner for Jeep Interior

how to spray bed liner in a jeep wrangler interior_raptor tintable bed liner kit

First, I poured the hardener and the beige tint in the bottle according to the instructions.
I quickly realized there was not enough room to properly mix the material by shaking it.

Raptor Liner’s slogan is “Fill, Shake, Shoot.” 
Well, there wouldn’t be much ‘shaking’ going on in this bottle because there wasn’t enough room.
Obviously, this is an issue raptor liner needs to address.

As a workaround, I poured the material in a mixing container and then poured it back in the bottle over and over until I felt it was mixed.

Later, I found a YouTube video of a person recommending a more viable workaround than mine which you will read in a later step.

How to Spray Bed Liner for Jeep Wrangler Interior Tub

First, I tested the air pressure to get the right consistency.

The amount of air pressure determines the consistency of the material. 
60 psi was my preferred setting.

how to spray bed liner in a jeep wrangler interior_air pressure setting

First, I sprayed the Jeep tailgate.

how to spray bed liner in a jeep wrangler interior_tailgate

Next, I focused on the hard to reach places like behind the gas pedals, around the base of the roll bars, and in the corners.

Also, I installed 2 air vents in my workshop and these did a great job at removing the fumes.
I wanted to make sure to get a thin coat on the entire interior of my Jeep.

When I felt the bottle getting lighter, I sprayed the outside edge of the Jeep.

how to spray bed liner in a jeep wrangler interior_outside edge

I was surprised at how much area I covered with one bottle.
Once the material dried, I could see where I needed to spray more material.

how to spray bed liner in a jeep wrangler interior_after first coat

 

Spray Bed Liner in hard to reach places

I carried a chop brush with me to clean spills and get to hard to reach places. 
The spray gun has an air hole at the top. 
Therefore, material will spill out if it is turned upside down a particular way.

Clean Spray Bed Liner Dispenser

First, I removed the Raptor Liner bottle from the spray gun.
Next, I used acetone to clean the material from all parts of the gun.
Then, I removed the tip of the gun and bottom piece and poured acetone into the gun chamber and to these pieces.
Finally, I wiped each piece with a shop towel.

As a side note, I should have worn gloves when cleaning the gun.
This stuff dries quickly, so I decided to not use gloves and be very careful to not spill any on my hands.

Also, the Raptor Liner instructions did not specifically recommend a product to clean the spray bed liner gun.
If they did recommend a product, I missed it.

 

Second Coat

First, I poured all the material in a mixing container.

Next, I mixed the material with a the handle of a chip brush because I ran out of stir sticks.

how to spray bed liner in a jeep wrangler interior_39

Then, I poured the material back into the bottle.

I focused on the areas I missed and then applied an even coat on the rest of the interior of the Jeep.

Then, I removed the tape and allowed the material to set for 3 days before installing the seats, seat belts, and door hardware.

Install Seats and Interior Hardware in Jeep Interior

Once I had the proper bolts and screws, I installed the seats and interior tub hardware.

My installation went very smooth and I want to share with you 2 important tips. 

Ultimately, the 2 tips below will make your installation go smoothly.  In addition, it will also make removing the seats in the future go much smoother.

Use Proper Torque for Bolts

Before you tighten the bolts, make sure to read the Jeep manual regarding proper torque.
Obviously, you need to purchase a torque wrench

The unit of measure for torque that we all know, the “ft-lb,” “lb-ft,” or “foot-pound” is the amount of turning force applied to move one pound a distance of onefoot around an axis at a radius of one foot.  Additionally, the same concept applies to “inch pounds”.

Anti Seize Lubricant

Use anti seize lubricant on bolts.
Just a little will prevent the bolt from fusing to the Jeep interior tub with rust.

Conclusion

In conclusion, I hope you learned how to spray bed liner for Jeep Wrangler interior tub and it brought you some form of value.

Let me know in the comments if you used spray bed liner on the interior or exterior of your Jeep Wrangler.

Again, I appreciate you more than you know.

M.r.

Thursday 6th of June 2019

Think this could be used on a small boat that has wood as base? Instead of carpet?

Comments are closed.