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Home > Spray Guns

Underseal Spray Gun & Probe

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Underseal Spray Gun & Probe

Perfect for spraying RustSeal into the inside of boxed frames, door panels, rocker panels, etc. Perfect for undercoating all of those hard-to-reach areas.

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Part #: 150010
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UnderSeal Spray Gun and Probe Overview

  • Specially designed for rustproofing auto bodies.
  • Works with KBS RustSeal and most types of anti-rust coatings.
  • Complete with adjustable nozzle which can be set depending on viscosity of liquid or coating in use.
  • Used for applying KBS RustSeal to the inside of doors and panels.
  • 1/4 (F) NPT air inlet.

UnderSeal Spray Gun and Probe Contents

  • Underseal Gun
  • 750 ml (26 fl oz) plastic container
  • Flexible extension probe (36")

UnderSeal Spray Gun and Probe Features

  • Working Pressure Range: 87 to 145 PSI
  • Air Flow Consumption: 13.5 SCFM (with standard nozzle)
  • Air Flow Consumption: 6.5 SCFM (with extension probe)

WARNING: This product contains a chemical known to the State of California to cause cancer and/or birth defects or other reproductive harm. www.P65Warnings.ca.gov

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Questions and Answers
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Q: what would you use to clean this gun? is laquer thinner ok?

Asked by:  - 10/11/2013

A: Yes, you can use Lacquer Thinner to clean the gun as well as KBS #1 Thinner. It is important to clean the gun as soon as you have completed spraying.

Was this answer helpful?   10 of 10 Customer(s) found this Answer helpful.

Customer Reviews - Others Say It Best +See All Reviews
review 13 Total Reviews Sorting:
Rating Works Great! Did just what I wanted.
I've been looking for something like this for years to spray the insides of unibody rocker panels. 3M has a system, but I've not tried it because I wanted to spray regular paint and it is set up for proprietary stuff that stays sticky. I didn't want sticky and this let me spray thinned Rustoleum inside rocker panels, fender areas and door cavities I can't reach with a brush. I don't doubt the rust preventative stuff they sell here would be better, but Rustoeum is less expensive and good enough for what I needed. Only down sides are it is a bit of a bother to clean (but not sure how it could be easier when you have that 3 foot probe). Also the probe is made of plastic hose that can be pinched/bent which will sometimes damage it. I found it best to tape a coat hanger to the probe to stiffen it so I could reach in better and not bend it. Replacement probes are available and I ended up needing one. That said, great tool and I did the hidden area of both of my '60s GM cars and will probably help a friend to his. Recommended if you need to do this sort of rust proofing.
  Did you find this helpful?    2 of 2 Found Helpful
Reviewed by:  from Philadelphia, PA. - 10/28/2010
Rating The Perfect Gun
Frame was rusting from the inside out. I figured out how to use the aqua and the blast. Then sprayed rustseal with this gun. I could not be happier. Worked perfectly and now I have stopped the rust on both the inside and outside of my frame.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Columbus, OH. - 8/23/2011
Rating Finer spray than most undercoating guns
Nice size. Taped a 12 gauge wire to the snake so it becomes more manageable.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Philadelphia, PA. - 11/18/2014
Rating Great little gun
Great little gun to say the least. Very good quality, well built. Only thing it needs is a bendable, flexible wand. The one they give I would suggest taping a 12 to 14 gauge wire to get control in tight places. Suprisingly powerful spray pattern. Rustfre makes one but you have to machine it to fit.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Philadelphia, PA. - 12/26/2014
Rating Great product!!!
I used this to spray an anti-corrosion product in my aircraft. The flexible extension hose was absolutely perfect for getting in those tight hard to reach spots. I removed the hose and put on the nozzle to fog the product into the open areas. Perfect!!!
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Georgia. - 6/29/2016
Rating Gun worked great. Fast shipping. Happy.
Short nozzle on gun sprays much too heavy. I used a top loader spray gun for open areas. The flexible nozzle on the gun really helped get everywher.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Kirtland Ohio. - 11/4/2012
Rating pretty good gun
Not so great using gun underneath vehicle. Messy
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Bristol wi. - 11/25/2012
Rating easier than the last spray gun I had
I used the sray gun in tight spot s in and around a Jeep truck frame
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from downers grove Il. - 11/26/2012
Rating This did the job!
I had my car body dipped so I bought this for spraying epoxy primer in all the hidden areas. Have to get paint thinned just right, and mess with air pressure a lot, But it did what I needed it to do.Inside rockers, inside doors and window pillers. You end up with a lot of exess paint, I used air blow gun to push paint to drain holes. Not many options for getting paint into hidden spots and this worked great for the money, easy to clean also.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Seattle. - 10/30/2014
Rating used on Lotus Chassis & Suspension Arms
Sparayed KBS rust seal on the inside of the two box sections of my chassis and the two trailing arm box sections. Not the prettiest of spary jobs but plenty of protection in very difficult long box sections. Need the flexible extension tube to reach all the corners. No other way to do this without the long flexible nozzle. Everything cleaned up well afterwards.
  Did you find this helpful?    1 of 1 Found Helpful
Reviewed by:  from Cincinati, OH. - 6/3/2009
Review Underseal Spray Gun & Probe
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