Our Process

Restoring the SHINE of your boat
Step 1: Initial Wash
A decontamination wash is essential to start correcting the gelcoat by scrubbing/washing the boat to remove old waxes and dirt to prepare the surface for restoration.
Step 2: Oxidation Removal
If the boat has heavy oxidation, it will be wet sanded as needed, particularly if it leaves a chalky residue at first touch. This will be followed by compounding to reveal the glossy gelcoat underneath.
Step 3: Polishing
Polishing will eliminate any scratches or swirls left from compounding and provide a protective layer.
Step 4: Protection
Once compounded and polished, GTHN will apply a coat of wax, polymer sealant or ceramic coating to protect the finish.
Step 5: Maintenance
Routine maintenance is essential for preserving the gelcoat. Regularly washing the boat and reapplying protective sealants will help keep it looking its best.
Guelph Name Registration Number Removal Install
Removing and installing your boat's registration numbers is a task that many Guelph boat owners face when refreshing their vessel's appearance, updating registration, or preparing for professional detailing work. Whether you're doing this as part of a full restoration or simply need to swap out worn lettering, understanding the right technique protects your boat's gelcoat and ensures a clean finish. GTHN Boat Polishing specializes in helping boat owners across Guelph and the Greater Toronto Area maintain their vessels in top condition, and we're here to walk you through this process step by step.
By the end of this guide, you'll know how to safely remove registration numbers without damaging your boat's surface, prepare the area for new installation, and apply new numbers securely. This work is straightforward when you follow the right approach, and it's something most boat owners can accomplish with basic tools and patience.
Gather Your Tools and Materials
Before you begin, make sure you have everything you need on hand. You'll want a heat gun or hair dryer, a plastic scraper or old credit card, rubbing alcohol or acetone, lint-free cloths, and masking tape. A heat gun works faster and more effectively than a hair dryer, but a hair dryer is safer if you're new to this and concerned about damaging gelcoat. The plastic scraper is crucial because metal tools can scratch or gouge your boat's surface, and you want to avoid that at all costs.
If you're installing new numbers, grab the adhesive-backed vinyl decals you've chosen, a squeegee or soft plastic tool, and some soapy water in a spray bottle. Having everything ready before you start means you won't be hunting for supplies mid-project, which is when mistakes happen. It's also smart to wear gloves to keep your hands clean and protect yourself from adhesive residue.
Heat and Carefully Peel Away Old Registration Numbers
Start by warming the existing registration numbers with your heat gun, holding it a few inches away from the surface and moving it slowly across the lettering. You're not trying to scorch anything-just soften the adhesive underneath. After 30 to 60 seconds of gentle heat, the numbers should feel warm to the touch and slightly flexible. This is when the adhesive loses its grip and the numbers become much easier to remove.
Once the numbers are warm, use your plastic scraper to gently lift a corner of the lettering. Work slowly and steadily, reheating as needed if the numbers start to stick again. The key is patience-rushing this step is how boats end up with gouged gelcoat. If a number is being stubborn, apply more heat rather than more force. Once you've lifted all the old numbers, you'll likely have some adhesive residue left behind. Don't worry; that's normal and your next step handles it.
Remove Adhesive Residue and Clean the Surface
After the old numbers are off, you'll see a sticky residue on your boat's hull. Use rubbing alcohol or acetone on a lint-free cloth to gently rub away this residue. Work in circular motions and don't be aggressive-you're cleaning, not scrubbing hard enough to damage the gelcoat finish. The residue usually comes off fairly quickly once it's been softened by the solvent.
Once the adhesive is gone, wash the entire area with mild soap and water to remove any remaining solvent or debris. Dry it completely with a clean cloth. This clean, dry surface is essential for your new numbers to stick properly and stay in place. If you're planning to have professional boat detailing done-like a full hull restoration or ceramic boat coating application-this is an ideal time to schedule that work, since the area will already be prepped and ready.
Position and Apply New Registration Numbers
Before you peel the backing off your new numbers, position them on your boat's hull using the old registration location as a guide, or follow your local regulations for placement. Use masking tape to hold them in place and step back to check alignment. Registration numbers need to be straight and level, so take a moment to get this right. Once you're satisfied with the position, you're ready to apply them permanently.
Peel back the adhesive backing slowly while pressing the numbers onto the hull. Use your squeegee or soft plastic tool to smooth out air bubbles as you go, working from the center outward. Work methodically through each letter, applying steady pressure to ensure good contact with the gelcoat. Take your time here-rushing creates bubbles and wrinkles that weaken the adhesive bond and make your numbers look unprofessional. After application, avoid touching or washing the area for at least 24 hours to allow the adhesive to set fully.
Inspect Your Work and Maintain the Finish
Once your new registration numbers are in place and the adhesive has cured, take a step back and examine them in natural light. They should sit flat against the hull with no visible bubbles or lifted edges. If you notice any imperfections, you caught them early enough to make adjustments. Your work is now complete, and your boat looks fresh and properly registered.
To keep this area looking great long-term, incorporate it into your regular boat maintenance routine. When you're washing your hull, be gentle around the numbers and avoid high-pressure sprayers that might lift the edges. If you're thinking about professional detailing work-whether that's gelcoat restoration, ceramic boat coating application, or a full hull and deck decontamination wash-the professionals at GTHN Boat Polishing can handle all of that for you and ensure your registration numbers and the surrounding finish stay in pristine condition.
If you're in Guelph or anywhere across the Greater Toronto Area and you'd like expert help with boat detailing, restoration, or any of our marine services, we'd be happy to help. Reach out to GTHN Boat Polishing to learn more about what we can do for your vessel.
Frequently Asked Questions
How long does it take to remove and install boat registration numbers?
Most boat owners can complete removal and installation in 45 minutes to an hour, depending on how stubborn the old adhesive is. Taking your time and avoiding damage to the gelcoat is more important than speed, so don't rush the process.
Can I remove registration numbers without damaging my boat's gelcoat?
Yes. Use a heat gun to soften the adhesive, then gently peel with a plastic scraper rather than a metal tool. The key is applying heat gradually and using patience-never try to force numbers off when they're still cool and stuck tight.
What's the best adhesive for new boat registration numbers in Guelph?
Marine-grade adhesive-backed vinyl decals designed for boats are your safest choice. They're formulated to withstand saltwater, UV exposure, and weather conditions typical to Ontario waterways. Quality vinyl numbers last several years when properly applied.
Should I remove registration numbers before professional boat detailing?
You can, but it's not necessary. GTHN Boat Polishing and other professional detailers can work around numbers or remove and reinstall them as part of the service. Discuss this when you schedule your appointment so the team knows what you're expecting.
Where do registration numbers need to be placed on boats in Guelph?
Transport Canada regulations require registration numbers to be displayed on the hull in characters at least 3 inches tall, positioned where they're clearly visible. Numbers must be in contrasting color to the hull. Check your boat's documentation or with local marine authorities for exact placement rules for your vessel type.

Customer Testimonials

Kevin D, Caledon
I couldn’t be happier with how the ceramic coating turned out on my boat! I was blown away and the boat looks awesome! The shine is incredible and I know it will last. GTHN did an amazing job! Highly recommended!

Jan P, Hamilton
I had GTHN polish my boat. He did a fantastic job! Upfront and honest, and worked very hard. I highly recommend them!

Chris B, Hamilton
It’s hard to find reliable people in this industry, but Neil was one of them. Price was fair, work was awesome, communication throughout was above and beyond. I will use GTHN again and would highly recommend if you found them, you do the same.

Phong T, Kitchener
This was the first time I worked with Neil and the experience was great. He came out to do a couple of test spots before we settled into a quote and the rest of the scheduling was just as easy. The end result was fantastic.
Definitely recommended!!! 🙂

Diego M, Toronto
I’m amazed with the work that was done. I highly recommend it 100%
Fast and best ever results. Thanks Neil for your time and effort.

Steve B, Hamilton
We are beyond happy with the work done on polishing the hull of our boat. Not only is the work amazing, but Neil went out of his way to get our boat ready on time for launching. Small touches like putting painters tape on the line separating the gel coat and bottom paint are appreciated. As is the extra time spent on trouble spots. Highly recommend GTHN Boat Polishing!
We Will Come To You!
Feel free to contact us with any questions regarding your boat! We would love to help!
GTHN Boat Polishing
info@gthnboatpolishing.ca – 289-698-5909
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