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 Acid Wash

Acid wash for boats is a specialized decontamination process that removes oxidation, mineral deposits, and embedded grime from gelcoat surfaces, restoring clarity and shine to your hull and deck. If you own a boat moored or stored in Guelph or anywhere across the Golden Horseshoe, you know how quickly lake water, weather, and storage accumulate stubborn stains that regular washing cannot touch. GTHN Boat Polishing brings this professional restoration directly to your location, but the best results come when you prepare properly beforehand.

This guide walks you through exactly what to do before GTHN Boat Polishing arrives to perform this service on your vessel. Taking these steps ensures faster turnaround, better outcomes, and maximum protection for your investment.

Step 1: Clear the Boat of Personal Items and Loose Gear

Remove all cushions, canvas covers, fishing rods, safety equipment, and personal belongings from the deck, cabin, and storage areas. Anything loose or valuable should come off the boat entirely. This includes fenders, lines coiled on deck, or decorative items. GTHN Boat Polishing works around fixed installations, but anything portable creates obstacles and distracts from the work at hand.

If your boat is berthed in Guelph at a marina, coordinate with the dockmaster about timing so the crew has clear access to all sides of your hull and deck. Check whether your slip restrictions allow a service provider onsite, and let GTHN know about any height limitations or tight access points when you book.

Step 2: Give the Boat a Fresh Water Rinse

Before GTHN Boat Polishing arrives, hose down the entire boat with fresh water to remove loose salt, sand, bird droppings, pollen, and surface debris. Use moderate pressure-do not blast the boat as if you are cleaning a driveway. Pay special attention to the waterline, where salt and mineral buildup accumulates fastest, and to any textured surfaces where grime hides in crevices.

A preliminary rinse accelerates the professional restoration process because GTHN's technicians can focus on actual acid wash application and correction rather than spending time on basic surface prep. If your boat has been sitting idle, even a light rinse makes a measurable difference in how quickly the crew gets to work.

Step 3: Protect Non-Gelcoat Surfaces and Hardware

Acid wash is formulated for gelcoat, but GTHN Boat Polishing will mask off stainless steel fittings, windows, teak trim, vinyl seats, and any non-gelcoat materials before beginning work. However, you can speed this up by clearly pointing out any special finishes or sensitive areas when the team arrives. If your boat has custom paint, wood accents, or rare hardware, mention it during your initial conversation so GTHN can plan extra protection.

Check that all cabin windows and hatches are either locked shut or clearly labeled so no liquid accidentally enters living spaces. If you have canvas or fabric covers partially installed, secure or remove them entirely. This transparency prevents surprises and keeps the job on schedule.

Step 4: Ensure Safe Access and Electrical Setup

Make sure the boat is stable and secure at the dock or in storage. GTHN Boat Polishing technicians need safe footing and stable platforms to work effectively, especially when reaching high sections of the cabin or working along the waterline. If your boat is hauled out, confirm that blocks are tight and nothing will shift during the hours of service.

Confirm that a 110-volt electrical outlet is accessible within a reasonable distance from your boat, or ask whether GTHN brings portable power. Most marinas in the Guelph area and surrounding regions have power pedestals at slips, but storage yards and private docks may not. A quick call to GTHN before the appointment prevents any delays once they arrive on-site.

Step 5: Plan Your Schedule and Ask About Post-Service Care

Acid wash restoration typically takes several hours depending on boat size and oxidation severity. Do not plan to use the boat the same day; allow time for the surface to cure fully after the process is complete. GTHN Boat Polishing will advise you on aftercare-usually avoiding fresh water spray, extended sun exposure, or heavy use for 24 to 48 hours after service concludes.

Ask whether GTHN recommends a ceramic coating application after acid wash to lock in results and extend protection between detailings. Many boat owners in Guelph and across Hamilton, Burlington, Niagara, and the Greater Toronto Area add this step to maximize the shine and durability of their hull and deck investment. This conversation happens best before work begins, so you understand the full scope and timeline.

When you are ready to restore your boat's shine and remove years of oxidation and staining, GTHN Boat Polishing is ready to come to you. Reach out to discuss your boat's condition, your location, and how this service fits your schedule. The team listens carefully to what you need and explains exactly what to expect-no surprises, no hidden steps, just professional restoration that protects what matters to you.