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🛥️ Shine like you mean it — make every outing a head-turner!
Meguiar's M45 Marine/RV Polish & Gloss Enhancer is a professional-grade 16oz polish designed to deliver a stunning, high-gloss finish on fiberglass and gel coat surfaces of boats and RVs. Its rich polishing oils nourish and protect, while its versatile formula works by hand or machine, especially enhancing depth on dark colors. Celebrating over a century of expertise, this polish ensures your marine or RV surfaces look showroom-ready and grab attention on every adventure.


























| ASIN | B0000AXMDP |
| Best Sellers Rank | #10,911 in Automotive ( See Top 100 in Automotive ) #117 in Cleaners |
| Brand | Meguiar's |
| Brand Name | Meguiar's |
| Customer Reviews | 4.6 out of 5 stars 1,845 Reviews |
| Global Trade Identification Number | 00070382145163 |
| Included Components | MEGUIAR'S |
| Item Form | Gel |
| Item Highlight | Boat & RV Polish Enhances Gloss, Depth & Shine in Fiberglass & Gel Coat Surfaces, Excellent to Maxamize Shine |
| Item Type Name | Marine/RV High Gloss Polish – RV/Marine Polish Restores Brilliant Sheen |
| Item Volume | 473 ml |
| Item Weight | 16 ounces |
| Manufacturer | Meguiar's |
| Material Feature | Contains rich polishing oils that feed and nourish gelcoat and fiberglass surfaces. Restores valuable oils to produce a brilliant, high gloss finish on gelcoat and painted surfaces. Intended as a polishing step between cleaning and waxing/sealing to maximize gloss and longevity. Especially effective on dark colors, where it helps revive depth and wet-look shine. Usable by hand or with a Dual-Action (DA) polisher and safe for high-speed rotary use. Effortless application and wipe-off in full sun — formulated for easy use on-deck. VOC-compliant formulation suitable for marine/RV applications. Material Feature Contains rich polishing oils that feed and nourish gelcoat and fiberglass surfaces. Restores valuable oils to produce a brilliant, high gloss finish on gelcoat and painted surfaces. Intended as a polishing step between cleaning and waxing/sealing to maximize gloss and longevity. Especially effective on dark colors, where it helps revive depth and wet-look shine. Usable by hand or with a Dual-Action (DA) polisher and safe for high-speed rotary use. Effortless application and wipe-off in full sun — formulated for easy use on-deck. VOC-compliant formulation suitable for marine/RV applications. See more |
| Material Features | Contains rich polishing oils that feed and nourish gelcoat and fiberglass surfaces. Restores valuable oils to produce a brilliant, high gloss finish on gelcoat and painted surfaces. Intended as a polishing step between cleaning and waxing/sealing to maximize gloss and longevity. Especially effective on dark colors, where it helps revive depth and wet-look shine. Usable by hand or with a Dual-Actio… |
| Model Number | M4516 |
| Number of Items | 1 |
| Part Number | M4516 |
| Scent | Unscented |
| Size | 16 Fl Oz (Pack of 1) |
| Special Features | Not_Performance_Used |
| Specific Uses For Product | Boat and RV Wash |
| Surface Recommendation | gelcoat, painted, and fiberglass surfaces |
| UPC | 070382145163 |
| Unit Count | 16 Fluid Ounces |
| Warranty Description | LIMITED WARRANTY |
K**G
Works great
Works great
Z**R
Deep shine
Best product for gel coat RVs and boats. Due to a drought, I must wash my RV at an 18-wheeler wash, but after that, I polish and wax the RV with Meguiar products. I repeat this process annually. The RV is six years old, but looks brand new. I highly recommend Meguiar’s products.
L**Y
Works
Good item
K**E
Decent gloss for my old RV
Started using this on my 20-year-old fiberglass RV that I park in the driveway. I do freelance design from home, so that rig sometimes doubles as a quiet spot to sketch or take client calls. This polish gives the chalky panels a deeper color and a nicer gloss. Under afternoon sun it actually looks cared for again, which I appreciate. I spread it by hand with a foam applicator, then wipe off with microfiber. The bottle goes faster than I expected though, especially on a full-size RV. It also doesn’t hide small scratches as much as I hoped, so you still see some spiderwebbing. For keeping oxidation in check between bigger detailing sessions, it works well enough for me.
L**T
Good Item
Easy on, easy off. Very light polish; more like liquid wax so you don’t need to worry about it damaging your coat.
J**S
Easy to apply
31 year old boat looks like nee
A**A
Effective Boat Motor Cleaner for a Fresh Look
I recently tried this boat motor cleaner after neglecting my motors for a couple of years, and I was amazed by the results. Despite being a bit pricey and requiring a generous amount for both my main motor and kicker, the cleaner worked wonders. Unlike other products I've used before, this one successfully removed tough water spots and hard water build-up from the bottom drive unit. Although it required some effort to scrub, the outcome was worth it. I highly recommend this cleaner for anyone struggling with stubborn stains on their boat motors. It's truly a game-changer that outperformed all my previous attempts combined.
C**.
Not as advertised
Very messy to use with orbital buffer. A little disappointed with results. Mcguiars products has never let me down and I have been using them for 40 years. This stuff just isn’t the same quality polish as I expected. Did it work? Kind of. Just not as expected. Would I purchase again? NO!
E**O
Excelente
Extraordinario producto Funciona de 10 Muy recomendable
A**R
Brought the color and gloss back to a dry dull old boat
Actually worked great on an old boat which was losing the gelcoat from decades in the sun. You could for example wipe the blue stripe and have a chalky blue on your hand. Put some life back in. And cleaned up very nice with a Kraftpaket polisher. Highly recommend using a polishing machine and getting quality polishing sponges to save yourself a lot of work. Afterword I put a modern ceramic coat to seal it and protect from further sun damage. Came out far better than expected! The blue stripe looks like new and I got a lot of compliments in the marina. I had some left over so one bottle will easily do a 10 meter sailboat. Great value for the difference it made.
L**E
Bon produit
Produit de bonne qualité, redonne le brillant à ma coque de bateau de 2002, déjà régulièrement entrenu mais devenu terne aux fils des années. Presque un miroir😊
D**N
Perfect On Our RV Azdel Walls
Worked perfectly on our RV Azdel-fibreglass. Nice and shiny again.
N**I
good
good product
Trustpilot
1 week ago
2 weeks ago