Two men with tattoos working on a red car during a detailing workshop, with a banner in the background that says 'Detail Excel'.

Advanced Wet Sanding & Paint Correction Course

LEVEL: INTERMEDIATE-ADVANCED

This advanced class is geared towards detail technicians looking to advance their current skill set and build confidence in sanding and advanced paint correction. This in-depth hands-on class focuses on paint theory alongside the history of common and uncommon paint systems that have been widely used around the globe for many decades.

Gloss University’s team of experts will break down how to properly and safely sand and polish custom paint, aftermarket paint, and modern OEM paint. Our team will discuss how to choose the appropriate sandpaper for leveling paint defects, plus removing and leveling paint texture. This course also covers how to safely and effectively use a rotary polisher and also covers many advanced machine techniques for Long Thow DA Polishers. Additionally you will learn about different buffing pads best used for paint correction and some of the best lighting that you will need to spot and identify paint defects on your process to a show car paint finish.

Perfect For

The professional detailer who want to focus specifically on paint correction to build their skillsets and confidence in sanding and advanced paint correction.

What’s Included

  • Gloss University swag and product giveaways

  • Product kit for students ($149 retail price)

  • Discount codes for future product purchases and training

  • 12-months access to Gloss University Alumni group

  • Coffee, pastries and lunch provided both days

Sign Up Now

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Limited Space Available

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Sign Up Now --- Limited Space Available ---

In-Person Training Course - 2026 Enrollment Open

Class Details

Friday, May 22nd, Saturday, May 23rd & Sunday, May 24th, 2026
Summer Advanced Wet Sanding Training

Topics Covered

History of Different Paint Systems from Around the World

Paint Theory and Techniques

Proper Sanding and Polishing

Custom Paint, Aftermarket Paint, and modern OEM paint

How to Safely and Effectively use a Rotary Polisher

Leveling Paint Effects and Textures

Buffing Pads and Lighting

Advanced Machine Techniques for Long Throw DA Polishers

I’m Ready to Get to the Next Level!

Sign Up
A person polishing an orange car with a rotary buffer in a garage or workshop.
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Practice on Real World Vehicles

Get your hands on luxury cars or hot rods to get an in-depth education on the actual vehicles you dream of detailing.

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Award-Winning Instructors

You will be learning from the best of the industry who are just as passionate as you and are ready to share their trade secrets.

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You Choose - Group Training or 1:1 Options

Weather you learn better with others or prefer to customize your training, we have a different training programs for what you need.

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Payment Plans Avaialable

Don’t let investment be the reason you miss out on this class training. Choose a payment option that works within your budget.

Meet your Instructors

  • Portrait of a man with glasses and a beard, wearing a black baseball cap and black polo shirt, against a wooden background.

    Matthew Arendt

    Director Of Training

    Matthew’s career in automotive started as a porter working for a local new car dealership in the late 90’s. The dealership is where Matthew learned how to prep new and used cars for sale, this was where he first learned how to wet sand OEM paint and operate a rotary polisher.

    Seven years later, Matthew left the car dealership and began selling professional detailing supplies and equipment in Chicagoland. Matthew’s time spent as a sales professional has allowed for deeper understanding of the car wash and detailing industry. After his long career in sales, Matthew decided to leave the corporate world and chase his passion for quality and excellence.

  • A smiling man with glasses and a shaved head wearing a black 'GLOSS UNIVERSITY' t-shirt, standing in front of shelves with automotive or cleaning supplies.

    David Patterson

    Technical Director

    David Patterson, is an auto enthusiast who transformed his love for cars into a thriving career. Since 2003, David has been immersed in the world of collision repair and automotive refinishing, gaining experience in body shops and dealership detailing.

    Inspired by his passion, he founded Perfect Shine Detailing, where he honed his skills on custom-built; rare; and vintage vehicles. David's expertise extends beyond hands-on work as he contributed to the development of products and secured multiple patents. With a focus on achieving impeccable finishes for high-level show cars, his dedication has led to achievements including detailing for events like Barret Jackson and Gooding & Company Auction.

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Group of people gathered inside a garage or workshop around a black car, with some listening to an individual demonstrating or explaining something. Workshop has various tools, equipment, and signage on the walls.
Two men with glasses and beards sitting at a yellow table, looking at a phone. The man on the left is wearing a yellow t-shirt with a graphic and a black cap with a red logo, and a name tag that says 'Luke.' The man on the right is wearing a gray cap
A group of people gathered around a car, with one person in the center inspecting the vehicle while another person holds a scanner above him. All individuals are wearing masks.
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Take a Sneak Peak

  • "I could not have found a better training to attend and the instructors were absolutely amazing."

    This was an overall mind-blowing and gratifying experience. I feel fortunate to have been able to spend time and space with others that have the same interests as I do, as well as with the dedicated instructors who helped everyone along the way. From the moment I walked into the RingBrothers shop, I knew the training was going to be exactly what I wanted and more. The instructors gave me the confidence to perform techniques that seemed dangerous to me, however after seeing it and performing the process of high spot removal followed by wet sanding, I knew it was safe and effective. I could not have found a better training to attend and the instructors were absolutely amazing. Gloss University's team of instructors made the training fun and exciting because they eagerly taught the class how to perform proper paint correction techniques that instantly boosted my overall confidence. I highly recommend attending Gloss University to enhance your detailing skills. This two day class far exceeded my expectations

    Michael Vichich
    Owner/Operator
    Grease Police

  • "What I loved most about Gloss U was the emphasis on the technician’s skillset, rather than the products you are using. "

    Easily one of the best training experiences you”ll get as a detailer. Whether you are a professional or an enthusiast, there’s tons of valuable techniques, concepts and principles you’re going to learn from this 2 day class. The instructors all bring something unique to the table in their teaching styles, which contributes to a diverse learning experience for the students. They truly invest their time and attention into teaching and connecting with the class. What I loved most about Gloss U was the emphasis on the technician’s skillset, rather than the products you are using. This class gets you to push your own limits, to struggle and see what you are actually made of. You'll leave this class surprised at “the technician you walk in as” and “the one you are after you return home”.

    Beau Mulher
    B Detailed Auto Detailing

FAQ

  • Gloss University will provide all the necessary tools for training, however if you have a specific polisher that you would like you use in the class, we encourage you to bring it along.

  • If you have no experience sanding paint, that is perfectly fine. Our team of experts are there to help you safely practice sanding at a pace that is comfortable for you.

  • If you have never used a polisher before, we recommend Detail 360 Training before attending Gloss University's Advanced Wet Sanding & Paint Correction Class.

  • Gloss University provides a “Certificate Of Completion” at the end of day two.

  • Depending on the size of the class, Gloss University has a minimum of 2 instructors for group classes that float between students during hands-on training segments. For larger classes there are 3 to 4 instructors.

  • Gloss University provides Coffee and pastries in the morning both days along with lunch.

    If you have any food allergies or specific requests please notify Gloss University at the time of sign up.