Description
Premium Marine-Grade Identification for Professional Compliance & Visibility
Upgrade your vessel’s aesthetic while ensuring full legal compliance with the Hardline Products® Series 350 Registration Kit. Engineered for the harsh marine environment, this solid red lettering kit offers a factory-matched finish that resists fading, fuel, and scratches, ensuring your registration numbers remain sharp and legible season after season.
Whether you are outfitting a high-performance jet ski, a fiberglass bass boat, or a commercial tender, this kit provides a universal, durable solution that meets all US Coast Guard guidelines when installed correctly.
Key Features & Benefits
- US Coast Guard Approved: Meets the federal requirement for 3-inch block-style registration numbers, ensuring you pass safety inspections with ease.
- Marine-Grade Durability: Manufactured with 4-mil thick vinyl and UV-coated to resist fading from sun exposure, saltwater corrosion, and fuel spills.
- Complete Customization Kit: Includes 4 sets of letters A-Z and 4 sets of numbers 0-9 (146 decals total), ensuring you have every character needed for both the Port and Starboard sides of your vessel.
- Superior Adhesion: Features “Super-Stick” adhesive technology that bonds securely to gel-coat, fiberglass, polyethylene, metal, and painted surfaces without peeling.
- Environmentally Safe: Printed with 100% lead-free inks.
- Made in the USA: Designed, engineered, and manufactured in the United States using global and domestic parts.
Product Description
Don’t let peeling stickers or faded numbers ruin the look of your boat. The Hardline Products® Series 350 Kit is the industry standard for DIY boat registration. Unlike cheap paper stickers, our decals are made from high-gloss, pressure-sensitive vinyl designed specifically for outdoor marine use.
The Solid Red (Series 350) colorway provides high contrast on light-colored hulls (white, silver, beige), ensuring maximum visibility for harbor masters and marine patrols. The simple “Peel & Apply” installation process allows anyone to achieve professional-looking results in minutes—no professional installer required.
Versatile Application: This kit is perfect for a wide range of vessels, including:
- Boats (Fiberglass, Aluminum, Wood)
- Personal Watercraft (Sea-Doo, Yamaha WaveRunner, Kawasaki Jet Ski)
- Inflatables & RIBs (Rigid Inflatable Boats)
- Kayaks, Canoes, and Tenders
Technical Specifications
- Series: 350 (Solid Red)
- Font Style: Block Font (Federally Mandated Style)
- Character Height: 3 Inches (7.62 cm)
- Total Decals: 146 Characters (4 x A-Z, 4 x 0-9)
- Material: UV-Coated 4-mil Vinyl
- Adhesive: Super-Stick Pressure Sensitive (Fuel & Scratch Resistant)
- SKU: RED350EC
Installation Tips for a Pro Finish
- Clean Surface: Ensure the application area is free of wax, oil, and salt using a non-residue cleaner or alcohol wipe.
- Align: Use masking tape to create a straight guide line for your numbers.
- Apply: Peel the backing and press the decal firmly onto the hull, smoothing out any air bubbles.
- Set: Allow the adhesive to cure for 24 hours before submerging in water for maximum bond strength.
Secure your vessel’s identity with the durability it deserves. Add the Hardline Products® Series 350 Registration Kit to your cart today.
Frequently Asked Questions
Installation & Compatibility
Q: How many stickers come in your kit? A: 4 sets of A-Z, 0-9 for a total of 144 decals. Enough to do both sides of your vessel.
Q: The state assigned me a registration number with a sequence that has 3 of the same number or letter in it, now I am short one decal can you help? A: Yes! email us your registration number and the part number you purchased and we will send you the extra decals you need.
Q: How do I get my numbers nice and straight? A: Lightly scribe a line with a ruler and pencil to get a guide or use painters tape instead. We also make a product called Sticker-On! that allows you to move your decals around until they are nice and straight and then it dries. Click Here! to Order Sticker-On! While not required, we recommend our Professional Installation Kit that will help with the entire application and removal process. Click Here!
Q: I don’t want to bother with applying the decals what else can you do? A: We can pre-arrange your decals on transfer tape for the easiest installation. Just click on “Custom Build It for Me” on any our decal kits, enter your desired registration number and we will assemble your registration numbers on easy to use transfer tape and ship it out to you.
Q: Does Sticker-On! help my decals stick better? A: No, Sticker-On! does not add to the adhesive quality of decals.
Q: I have old decals I want to remove what is the best method? A: Use a hair-dryer or heat gun on low to warm up the decals and peel. We recommend Sticker-OFF! to help remove any adhesive left behind from your old decals. Click Here! for Sticker-OFF!
While not required, we recommend our Professional Installation Kit that will help with the entire application and removal process. Click Here! to Order
Q: Peeling these old decals is difficult, do you have a better solution? A: Yes, use our plastic razor-blades to safely remove old decals. Click Here! to Order
Q: Do your decals meet US Coast Guard guidelines? A: Yes, the USCG provides “Guidelines” for registration numbers and the states follow these guidelines. Our decals meet these guidelines when installed correctly and have been USCG committee reviewed.
Q: What is the biggest point to remember when picking out decals for my vessel? A: Choose a color combination that contrasts with your application area (hull) so your numbers are easily readable.
Q:Will my decals stick to a plastic boat? A: Yes, most injection molded boats have a smooth surface that the decals can adhere to. Sometimes plastic boats still have a left-over coating of “Mold Release” on the boat that can deter decal adhesion.
Q: I am having a hard time getting my decals to stick to my kayak or plastic boat, what do I do? A: Wipe down the application are with denatured alcohol then wash the application area with soapy water with detergent like Dawn or Simple Green. Let the boat sit in the sun a few days after that to “Gas Off” any remaining residues in the plastic.
Q: Can I use these decals on my Inflatable Boat? A: For inflatable boats we recommend using our registration plates with our decals. Click Here! to review plate options.
Q: Can I use these decals on my pontoon boat? A: Yes! Aluminum or fiberglass.
Q: Can I use these decals on my SeaDoo Spark? A: Yes but with some additional preparation. Sea-Doo Sparks have an injection molded hull, many times there is still “Mold Release” still in the material that needs to “Gas Off”. Here’s what to do; Wipe down your application area with denatured alcohol (always test first on small inconspicuous area before doing whole application area). Wash your application area with soapy water with a detergent like Dawn or Simple Green. Remove storage tubs, seat etc. and let your Spark sit out in the sun for a few days to finish “Gassing Off”. You want as much air to flow through as possible. Then apply your decals. We also recommend using this sticker kit for Sea Doo Sparks, Click Here!
Q: What does “Factory Matched” mean on your packaging? A: Because we are a private label manufacturer for many brands of boats and PWC we have access to their color codes. From that inside information we create registration kits that match your vessel but keep you legal with USCG guidelines when installed correctly.
Q: I just need a few black or white decals do you have those? A: Yes, offer single letter and number decals as well sold in packs of 10. Click Here!
Features & Operation
Q: What determines the quality of a decal? A: Decals quality is determined by designed use. We use outdoor calendared vinyl specifically designed for the UV environment and outdoor use. Many people think “Thickness of a Decal” is associated with quality, it is not. It does not matter how thick a decal is if it was not designed for outdoor use it will fail.
Q: Are your decals reflective? A: No we do not do reflective registration decals because this could be a navigational hindrance to other boats at night.
Q: How do you come up with your color combinations? A: We choose color combinations that are going to keep you legal but also work with the colors in your vessel. We work closely with the major manufactures to be inline with the latest colors being use.
Q: How do you make your decals last? A: All our decals are made with UV Solvent based inks and UV Clear Coats and are Lead-Free.
Q: What size are your decals? A: Federal and state guidelines call for a minimum of 3″ on Vessels. Our decals meet this requirement.
Q: How wide are your decals? A: Depending on the font and the specific character 1.25″ or larger. Our sizing was specifically designed to make sure they will fit in the designated area on your vessel or PWC.
Q: Where on the hull do I install my registration decals? A: The USCG and State guideline is “Registration Decals Shall Be Displayed on the Forward Half of the Hull above the Bond Line.” The “Bond Line” statement can be confusing because it is based on old nomenclature in the USCG handbook. For Boats: put the decals below your rub-rail on the forward half of the hull.
For PWC: put the decals above the rub-rail on the forward half of the hull.
For Pontoons: put the decals on the forward half of the ” Fence, Gate, Panel or Railing”.
Q: Is there enough decals in your kit to do Port and Starboard sides of my vessel? A: Yes. Also, note some states like Florida are now only requiring registration numbers for the port side.
Q:What is your customer service number? A: Call us at 1-888-413-8315 7am-5pm EST, M-F. We are based in Stuart Florida and we answer the phone! Or you can email [email protected] and we will respond as soon as possible.
UPC:632194358119
B002RBXHSW





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