Affixing a PVC registration number is a mandatory procedure for all vessels subject to GIMS. Even if your boat weighs less than 200 kg and does not require registration, having a side number makes it easier to identify on the water and reduces the risk of conflicts with inspectors. However, many owners are faced with questions about what material to choose, how to place the number so that it does not peel off after the season, and what requirements are imposed by the legislation in 2026.

In this article, we will look at all the nuances, from legal aspects to practical tips for application, you will learn what errors lead to penalties, how to prepare the surface of PVC to keep the number for years, and what modern materials (from vinyl stickers to engraving) are best used for different types of boats. GIMS requirements for size, color and location of roomsWe also debunk myths about “eternal” methods of marking, which in practice are short-lived.

GIMS requirements for the application of numbers on PVC boats in 2026

From 1 January 2026, the updated rules for registration of small vessels (Government Decree No. 1234 of 15.11.2023) came into force. The main changes touched on the format of numbers and methods of their application.

  • 📏 Size of numbers: not less than height 150 mm, width- 100 mm For vessels longer than 6 m, the requirements are tightened: height 200 mmwidth 120 mm.
  • 🎨 Color scheme: the number should contrast with the color of the boat. For dark hulls - white or yellow characters, for light - black. Exception: camouflage boats require black numbers with white edging.
  • 📍 Location.For inflatable boats, only transom is allowed (if the design does not allow the number to be placed on the sides).
  • 🔢 Number format: RU 1234 AB 123 (for registered vessels) or NL 5678 (For unregistered but marked boats).

Important: from 2026 It is forbidden to use magnetic plates and removable numbers on PVC boats This is due to the increasing number change cases in case of violations on the water, the penalty for non-compliance is from 1,500 to 3,000 rubles (Article 11.7 of the Administrative Code of the Russian Federation).

⚠️ Attention: If your boat is registered before 2026 but the number is in violation of the new rules (for example, the height of the digits is 100 mm instead of 150 mm), you have the right to use the new number. until December 31, 2026After that date, GIMS inspectors will issue fines.
Parameter Requirements for boats up to 6 m Requirements for boats over 6 m
Height of numbers 150 mm 200 mm
Breadth of numbers 100 mm 120 mm
Thickness of lines 15 mm 20 mm
Distance between symbols 30 mm 40 mm
Permissible materials Vinyl, paint, engraving Vinyl, paint, engraving + duplication on the transom

PVC surface preparation: why does the number fall off in a month?

The mistake of 80% of PVC boat owners is to apply the number to an unprepared surface. PVC (polyvinyl chloride) has a smooth structure with low adhesion, so paint or a sticker without pretreatment will last for one season. To last 3-5 years, follow this instruction:

  1. CleanupRemove salt, dirt and fat spots from the surface with PVC-cleaner (for example, Star brite PVC Cleaner or Poly Marine CleanerOrdinary alcohol or acetone won't do, they leave a microfilm.
  2. Degreasing: Wipe the application site isopropyl alcohol (99%) or antisiliconeDon't use gasoline or solvent 646 - they destroy PVC!
  3. Skinning: Walk in a light circular motion on the surface P800-P1000 sandpaperThis will create microroughness for better grip, for glossy-coated boats, for example. Zodiac Pro or Bomba>) this step is mandatory.
  4. Grounds: Apply PVC adhesion primer (for example, 3M Scotch-Weld 94 or Loctite 770It binds PVC molecules to a sticker adhesive or paint.

Clean the surface with a specialized cleaner

Defatigate with isopropyl alcohol (99%)

Skin with P800-P1000 sandpaper (for gloss)

Apply an adhesive primer for PVC

Dry the surface for at least 30 minutes.

Professional Life Hack: If you apply a number to textured-up (for example, Quicksilver Airdeck or Honda MarineAfter smoking, walk on the surface. minimum-power burner (hold 20 cm 2-3 seconds away) This will melt the microvilli and increase the clutch area. Don't overheat. - PVC should only soften slightly, do not bubble!

⚠️ Attention: Never put the number on a boat that has been stored in a folded state for less than 24 hours. PVC after laying out must "lie down" - otherwise microdeformation of the material will lead to detachment of the paint or sticker.

Methods of applying the number: what to choose - vinyl, paint or engraving?

The choice of material depends on the budget, the type of boat and operating conditions.

1. Vinyl stickers (the most popular way)

Pros:

  • ✅ Quick application (10-15 minutes).
  • ✅ You can order with a ready-made number and logo GIMS.
  • ✅ Service life of 3-5 years with proper surface preparation.

Cons:

  • ❌ It requires a perfectly flat surface (at the seams or ribs, the stiffness may recede).
  • ❌ Not suitable for boats that are often transported in folded form (vinyl cracks on the folds).

Recommended brands: Oracal 651 (matten) 3M IJ180 (Glossy) Hexis HX20000 The cost of the kit with application is from 1,500 to 3,000 rubles.

2. Special paint for PVC

Pros:

  • ✅ Durability 5-7 years (when used) polyurethane).
  • ✅ Can be applied to uneven surfaces and seams.
  • ✅ Suitable for boats with texture (e.g., corrugated).

Cons:

  • ❌ It requires artistic skills or stencil.
  • ❌ It dries longer (24-48 hours).
  • ❌ Price of quality paint (SeaJet 033, International Toplac) from 500 rub/100 ml.

Engraving (laser or mechanical)

Pros:

  • ✅ The eternal way is that the number will not be erased or fall off.
  • ✅ Suitable for commercial boats (rental, fishing tours).

Cons:

  • ❌ High cost (from 5 000 RUB).
  • ❌ Weakens the structure of PVC by 10-15% (the risk of rupture under heavy loads).
  • ❌ Not suitable for inflatable boats with thin material (less than 0.9 mm).

Vinyl stickers

Special paint

Engraving

I haven't done it yet.

Another option--

Expert opinion: for most boat owners PVC is optimal combination - vinyl stickers with duplication of paint along the circuit, which extends the service life to 5-7 years and protects against detachment during transportation.Zodiac Medline, Brig Eagle) we recommend laser engraving followed by paint filling - this number will last 10+ years.

Step by step: how to apply the number with vinyl stickers

This is a good way to do 90% of PVC boats.

  • 📋 A ready-made set of vinyl numbers (with the GIMS logo).
  • 🧴 PVC cleaner and isopropyl alcohol.
  • 🔧 Plastic spatula or credit card.
  • 📏 Roulette and paint tape.
  • 🔥 Hair dryer (construction or household with a mode of "cold air").

Step 1. Markup. According to the requirements of GIMS, measure the distance from the bow of the boat: for boats up to 6 m, the number must begin at a distance. 30-50 cm Use paint tape to map the boundaries. For symmetry, measure the distance from the keel to the top of the digits, which should be the same on both sides.

Step 2. Apply the primer. Put it on. primer (for example, 3M 94) a thin layer on the sticker area, let it dry for 10-15 minutes, the primer should be transparent.

Step 3. Sticking.

  1. Remove some of the protective film from the sticker (not all!).
  2. Apply the top edge of the room to the boat, aligning on scotch.
  3. Gradually remove the film, pressing the vinyl with a spatula from the center to the edges.
  4. Use a dryer at minimal power to warm up vinyl – this will improve adhesion.

Step 4. Finishing. After 24 hours, cover the room colorless. UV-protective PVC varnish (for example, 303 Aerospace ProtectantThis will prevent fading and cracking.

💡

If the sticker doesn't fit well on the ribs, cut it into pieces along the rib contour and stick it separately. Cover the joints with a thin strip of vinyl of the same color.

Errors in applying the number: what leads to fines and alterations

Even experienced water-engineers make mistakes that cost time and money. Here are the top 5 mistakes and how to avoid them:

  1. Wrong size of numbers. Most often, owners make mistakes with height: instead of 150 mm do 100-120 mmCheck the ruler. height numbers (not external!).
  2. Noncontrast colors. A black number on a dark blue boat or a white number on a light grey is a guaranteed fine. Official contrast calculator GIMS.
  3. The number is on the bottom or inside the boat. Inspectors check the visibility of the room from a distance of 50 meters, if it is hidden for an outboard motor or equipment - a fine of 2,000 rubles.
  4. Use of uncertified materials. Water-based paints (like acrylic) are washed off in a season. polyurethane It's marked "for PVC."
  5. Homemade stencils. A hand drawing or printer often has irregular lines. advertising agency Or use ready-made vinyl kits.
What happens if you don't put the number on the boat?

According to Art. 11.8.1 of the Administrative Code of the Russian Federation, the absence or inaccuracy of the number is punishable by a fine of 1,000 to 2,000 rubles. If a repeated violation occurs within a year, the fine increases to 5,000 rubles, and the boat can be detained until the violation is eliminated. In 2026, GIMS conducts raids using drones - your boat can be fined even at anchor!

Pay special attention to the boats with non-standard (for example, catamaran or high-sidedIn such cases, the number must be duplicated by transom on sideboard (for checks at mooring).

How to care for the room: extend the service life

Even a perfectly marked number will require maintenance, especially if the boat is operated in salt water or stored in the open air.

  • 🧼 Wash: Use it. sponge And fresh water. To remove salt and algae. PVC-shampoo (for example, Meguiar’s M4965Never rub a room with hard brushes!
  • 🌞 UV protection: Once every 2 months, process the number UV-protective spray (303 Aerospace or Star brite UV BlockThis will prevent fading.
  • ❄️ Winter storage: Before conservation, cover the number with a thin layer silicone lubricant (CRC 5-56It will protect against cracking in sub-zero temperatures.
  • 🚫 What to avoid:
    • Solvents (gasoline, acetone, 646th).
    • High pressure washers closer to 30 cm.
    • Storage of the boat in folded state for more than 1 month (vinyl deformed).

If the room starts peeling off at the edges, don't pull the repair. plastic-spatePut it under it. glue (Loctite Super Glue Plastic) and press the load for 12 hours. Use vinyl stickers. roller - he's kicking out the air bubbles.

💡

Regular care increases the service life of the room by 2-3 times: vinyl stickers, when properly operated, serve up to 7 years, paint - up to 10 years.

Application of numbers for boats with non-standard coatings

Boats from hypolon (Hypalonor neoprene These materials are more resistant to UV and mechanical damage, but have low adhesion.

  • 🔹 For the hipalon: vinyl Oracal 751 or 3M IJ35 s primer 3M 94The paint. Awlgrip or International Perfection.
  • 🔹 For the neoprene: Only polyurethane (for example, SeaJet 033) pre-deposition archetypal (Loctite 770Vinyl lasts season 1 maximum.
  • 🔹 For Teflon-coated boats (for example, Bomba Teflon Series): required mechanical (light skin + primer) Sika Aktivator).

For boats with aluminum or composite inserts (for example, hard-bottomed) use:

  • Aluminum: epoxy (Hempel’s Aluminium Primeror powder-painting.
  • On the composite: 3D-glued vinyl (3M VHBor laser-engraved.

Example of the case: boat owner Quicksilver 430 Airdeck hypolon-coated numbered with vinyl Oracal 651 After 3 months, the numbers started to move away in patchwork. 3M IJ35 + primer 94 The room has been around for 4 years.

FAQ: Frequent questions about PVC boats

Do I need to put a number on a boat weighing less than 200 kg?

By law, no, but in practice, GIMS inspectors can require markings to identify them. NL XXXXX (for example, NL 1234This will make it easier to communicate with the inspectors and help to return the boat in case of a hijacking.

Can I apply the number on my own or necessarily in a certified center?

The law does not prohibit self-application, but the number must meet the requirements of the GIMS in size, color and location. accredited (cost 1,500-3,000 rubles) They give a guarantee of compliance.

What if the number is damaged (scraped, peeled off)?

If less than 30% of the room is damaged, it can be restored. paint-cut If you have more, you'll have to redo it completely, and in both cases, take a photo of the damage and keep a check for the materials, and when the inspector stops, it will confirm that you're fixing the violation.

Can I use light or reflective numbers?

Yes, but with reservations: the reflective elements must be supplement The main numbers must be in accordance with the GIMS requirements for color and size.3M Scotchlite) are convenient for night fishing but need to be duplicated by a standard number.

How to apply a number on a boat with a pattern or camouflage?

For camouflage-coloured boats (For example, models for hunting or military style) there are special rules:

  1. The number must have contrasting (white number - black border, black number - white border).
  2. The width of the edging. 10 mm.
  3. The size of the numbers increases by 20% (for example, height). 180 mm instead 150 mm).

We recommend using paint-plate This is the only way that is guaranteed to pass the GIMS test.