Review: Marine 31 Gel Coat Prep Spray & Captain’s Boat Coating with UV50

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Review: Marine 31 Gel Coat Prep Spray & Captain’s Boat Coating with UV50


Marine 31 Gel Coat Prep Spray & Captain’s Boat Coating with UV50

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Video: How to use the Prep Spray and apply the Captain's Coating






NEW! - Marine 31 Gel Coat Prep Spray


What it is?
A safe solvent wipe to remove any residual compounding or polishing oils off the surface and out of the pores from gel-coat surfaces AFTER correction and polishing work and BEFORE applying a gel-coat ceramic coating.


What does it do?
It ensures a surgically clean surface, free from any substances that would interfere with the proper bonding of a ceramic coating to a gel-coat surface.


When to use it?
Use it immediately after the last polishing step and right before applying a ceramic coating.


Safety equipment needed?
It's recommended to wear protective gloves when handling any brand of solvent prep.


Good news!
This is a much needed product in the Marine 31 line and I'm happy to announce it's here. In the past, Marine 31 did not have a dedicated solvent wipe also called panel wipe, for chemically stripping gel-coat boats before applying a ceramic coating. In place of a proper solvent wipe, Marine 31 recommended to use the Marine 31 Port to Starboard All Purpose Cleaner, which will work but in my opinion it was too strong for the task at hand and for this reason it would tend to dull the gel-coat surface you're trying to make look beautiful. I call this working backwards. With the addition of the Marine 31 Gel Coat Prep Spray you can now quickly and easily chemically strip the gel-coat surface to ensure maximum performance from the Marine 31 Captain's Boat Coating with UV50 or any other gel-coat ceramic coating.



How to chemically strip gel-coat surfaces
I know this can sound harsh, it's the words chemically strip that creates a negative picture in your mind's eye. But it's not like anyone's worst imagination - all you're doing is removing any left over polishing oils (used in all compounds and polishes) so they won't interfere with the bonding process between the ceramic coating and the gel-coat.




The Mike Phillips Method --> Wet Pass followed by Insurance Pass
This is my method, you can come up with your own if you don't like mine. I wipe a car down twice. My first how-to article showing how to apply a coating dates back to 2011 - as I type this how-to article in the year 2019 that's 8 years ago. I have 8 years of perfecting my coating prep technique and I'm glad to see others have adopted this technique for their own best practice.


First Pass = The Wet Pass
The first pass is a very wet pass to remove 98% of any trace oils or other substances. This is called the Wet Pass.


Second Pass = The Insurance Pass
After wiping down all the gel-coat surfaces I intend to coat, I then wipe these surfaces a second time only I dramatically reduce the amount of Gel Coat Prep Spray I use for this second pass. I call the Insurance Pass. This second pass insures I have thoroughly removed any and all trace compound and polish residues.



Step-by-Step Directions


Step 1: Start by spraying a heavy saturation of the Gel Coat Prep Spray directly onto a section of gel-coat. Spray enough product onto the surface to see a wet application of product on the surface.


Step 2: Use a clean microfiber towel folded 4-ways. Spread the product over the area to be wiped with one side of the folded towel and then flip to the other side and make a second wipe until the surface is dry.

NOTE: These two sides of this towel are now contaminated. Re-fold the towel often so you always use a clean side to wipe-off the Gel Coat Prep Spray. Out of one towel you can wipe 4 sections. Then place this towel into a clean bucket and continue working around the boat using as many clean microfiber towels as necessary to chemically strip the boat using the Wet Pass method.



Step 3: After using the Wet Pass method over the boat, next use the Insurance Pass method. This second pass goes much faster. Now instead of spraying the Gel Coat Prep Spray directly onto the gel-coat, simply mist a spray or two onto one side of a clean, dry folded microfiber towel. Use this lightly dampened side of the towel to re-wipe a section previously cleaned using the Wet Pass method. After wiping with the dampened side, re-fold to a dry side to give this section a final wipe.


Note: The gel-coat surface should look clean, dry and streak free after the final wipe.


Continue around the boat using the Insurance Wipe method until all gel-coat surfaces to be coated have been carefully wiped twice. You are now ready to apply the Marine 31 Captain's Boat Coating with UV50 or any other quality marine gel-coat ceramic coating.




UPDATED FORMULA - Marine 31 Captain’s Boat Coating with UV50


What it is?

A gel-coat ceramic coating. Unlike modern basecoat/clearcoat urethane car paints, gel-coat, which is polyester resin with pigment is very different in that it is more porous. Another way of saying this is gel-coat is permeable and car paint is impermeable. The simple difference would be gel-coats can be penetrated by liquids while modern clearcoat paints cannot be penetrated by liquids.

This is one reason gel-coat oxidizes while generally speaking, modern clearcoats get swirls and scratches.

It's the porosity difference that makes it more difficult to make a ceramic coating that will bond and last when exposed to a marine environment.

I spoke with a personal friend and chemist at SEMA last year about the challenges of creating a ceramic coating for gel-coats and the above is what he told me, that is it's difficult to create a coating the will both bond and hold up welll to gel-coats or more specifically boats in the water. There are other forms of transportation that use gel-coat, for example RVs, but in the case of RVs, they are LAND transportation and not exposed to constant exposure to water, either fresh water or worse, salt water.

The Captain's Gel Coat Boating Coating is specifically formulated and tuned for porous gel-coat surfaces.



What does it do?

It seals the surface to help prevent future oxidation, staining and deterioration. Because of the stronger bond it makes to a gel-coat surface and that the nano size particles of silicon dioxide are more resistant to breaking down, it will last longer than traditional waxes and synthetic sealants.



When to use it?

You normally install (hand apply), a gel-coat coating after first correcting any imperfections in the gel-coat surface and then chemically stripping the surface to remove any residual polishing oils and other substances leftover from the polishing and/or compounding and polishing steps.



Safety equipment needed?

It's recommended to wear protective gloves when handling any brand of ceramic coating.



Good news!

This new and improved formula offers,

  • Easier application.
  • Easier wipe-off.
  • Longer application time.
  • Better protection.
  • Longer lasting protection.
  • Higher gloss and clarity.





Step-by-Step Directions


NOTE

Surface should be cool to the touch and out of direct sunlight.

Surface should be properly prepped including any correction work performed and then the surface chemically stripped using a panel wipe like the Marine 31 Gel Coat Prep Spray.



Step 1: Working on an area no larger than 2’ x 2’, apply the coating directly onto a coating applicator and spread it over the surface using a back and forth and side to side motion.


Step 2: Wait approximately 1 minute and remove any excess coating or high spots using a clean, dry microfiber towel. Switch towels often.


Step 3: Repeat the above steps to the rest of the boat. Overlap a little into previous coated sections to ensure uniform coverage and maximum protection.


IMPORTANT: Avoid exposure to water for 24 hours while the coating cures.




Towel Maintenance
After coating the boat wash and dry all your towels immediately. After washing and drying, fold and store your towels to keep them clean and free from contamination.





Review: Marine 31 Gel Coat Prep Spray

The Marine 31 Gel Coat Prep Spray has a pleasant fragrance and makes working with this product enjoyable instead of antagonizing as is the case with some solvents.

The product easily dissolves any left over polish residues and wipes off clean and clear. Most important, this product doesn't dull gel-coat down like more harsh solvent wipes or panel wipes, which can alter the final visual appearance for the coating application.

At the time of this writing I tested a 16 ounce bottle. Because many boats have a lot of surface area to cover I hope to see it also available in 32 ounce sizes as well as 1-galllon refill jugs for practical reasons.

As the saying goes,

It's the prep work that makes or breaks the final results...

Without properly preparing gel-coat surfaces by removing any trace polishing oils the coating will not be able to make a proper bond and this could have a negative affect on the coatings performance and longevity. While other products can work, this product works great and won't offend your sense of smell.





Review: Marine 31 Captain’s Boat Coating with UV50

I've been using the original formula since it's introduction and I'll be the first to say the application was a tick sticky and the wipe-off was also on the sticky side. This new, updated formula spreads out so much easier and wipe-off is a breeze as long as you don't wait too long. One minute is a good rule of thumb after spreading the product out. I purposefully waited 2-3 minutes before wiping the coated surface and wipe-off was still easy. I don't know if I would wait much longer than that especially in warm to hot temperatures.

Because many people don't have access to an air-conditioned garage to detail their boat, one tip for working in warm to hot environments is to shrink the size of your work area down, (compounding and polishing), and in the same way, shrink the size of your application area down when chemically stripping and then installing the coating.


Below in the next post are some pictures of the boat we tested this new formula out on. You could EASILY see the coating increase gloss and clarity upon application and this visual result remained after wipe-off.

The resulting gel-coat surface had a very high gloss finish with a slippery feel. Water beading was also excellent. (I poured some water onto the hull to test for water beading).


As a boat owner for years, I completely understand the drawbacks of traditional waxes as far as longevity goes. And while quality waxes, sealants and this new updated coating will easily create a beautiful finish on your boat, the benefit to a gel-coat coating is longer lasting protection with less frequent maintenance.

For a lot of boat owners, a long lasting ceramic gel-coat coating is exactly what you've been waiting for from the boat detailing industry. This newly updated formula will give you both a stunning looking finish on your boat and the long lasting protection you've been hoping for to protect your investment. The Marine 31 Captain's Boat Coating will extend the time between regular maintenance as well as holding up longer to the destructive effects caused by harsh marine environments.






On Autogeek.com


Marine 31 Gel Coat Prep Spray

Marine 31 Captain's Boat Coating with UV50

Blue All Purpose Microfiber Towels - 12 pack


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Continued...


Marine 31 Gel Coat Prep Spray & Captain’s Boat Coating with UV50 in action!


We recently did an extreme makeover to a high performance boat with the original gel-coat from 1985. I'm sorry to say at this time I don't have any action shots of this new product being used as I was either filming a video for this boat or polishing and cleaning the boat at the time.

When the video is finished editing I will share the video here and get some screenshots of the new Gel Coat Prep Spray in action. Until then, you can see the before and after results from first restoring the gel-coat and then chemically stripping the gel-coat followed by installing the Marine 31 Captain's Coating with UV 50 here,

From NEGLECTED to RESPECTED! 1985 Cougar Tunnel Hull Extreme Makeover at Autogeek


BEFORE

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AFTER

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BEFORE
a_Gelcoat_Ceramic_Coat_003.JPG




AFTER

a_Gelcoat_Ceramic_Coat_043.JPG





See all the amazing pictures here!

From NEGLECTED to RESPECTED! 1985 Cougar Tunnel Hull Extreme Makeover at Autogeek





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Continued...



If you're reading this and you would like to learn more about boat detailing or take you boat detailing skills and knowledge to a higher level, we teach a hands-on boat detailing training class once a year here at our facilities in Stuart, Florida.

You can find out the dates, topics and pricing for our boat detailing class and all our classes by clicking the link below.


Car and Boat Detailing Class


The boat detailing class always sells out - so get signed up sooner than later.



:)
 
New video that explains how to prep and coat gel-coat...





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Just saw this thread I just created a new thread asking about product this thread answered a lot of questions I’m probably going to purchase and is on large RV which is gel coat in most areas but paint in some will I have an issue using on paint?
 
Just saw this thread I just created a new thread asking about product.

This thread answered a lot of questions

Good to hear. When I write something, it's usually to answer questions using text, videos and pictures.

The POWERFUL thing is how well Skynet finds my write-ups like this so outsiders also find the info and the products.


Winning

:)



I found you're other thread here,

Marine 31 boat coating 8oz.



I’m probably going to purchase and is on large RV which is gel coat in most areas but paint in some will I have an issue using on paint?


I don't think so but I also haven't tested this gel-coat coating on paint, just gel-coat.


The tricky part about making a coating for gel-coat is to overcome,

  1. The porosity

  2. The harsh marine environment



What works on paint might not and probably won't work on gel-coat AND work on gel-coat in the marine environment.

What works on gel-coat WILL probably work on paint and hold up to any environment.


:)
 
So what is the sq. ft. coverage of this coating and cleaner. My 5ver is approx. 960 sq. ft. of fiberglass. Seems like it would take a few 8oz. bottles.
 
So what is the sq. ft. coverage of this coating and cleaner. My 5ver is approx. 960 sq. ft. of fiberglass.

Seems like it would take a few 8oz. bottles.


I can't do that kind of math in my head.

You apply a thin coat - like all coatings.

Unlike all coatings, an 8 ounce bottle is a LARGE bottle. So it will take less of these bottles than any other gel-coat coating I know of on the market.


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@Mike Phillips it arrives tomorrow and I’ll be polishing and coating RV over weekend into Monday. It was a no brained this over other brands it’s such a great deal for 8oz of coating. I am definitely going to do a second coat I will have enough product and It’s in the budget. I plan to wait 2 hours between coats. What do you think I can put the second coat on the next day if there’s a benefit to longer wait. The coating needs to last at least a year or the customer will be unhappy it will be wash once every two months and I will top it at 6 month mark.
 
@Mike Phillips

Sorry for the delay in getting back to you - I can no longer keep up with all my job duties including providing customer service on the forum.


:dunno:


it arrives tomorrow and I’ll be polishing and coating RV over weekend into Monday.

It was a no brainer this over other brands it’s such a great deal for 8oz of coating.


Copy that...



I am definitely going to do a second coat I will have enough product and It’s in the budget. I plan to wait 2 hours between coats.

What do you think I can put the second coat on the next day if there’s a benefit to longer wait.

If you can apply the next day this is what I would suggest. The idea being to let whatever Voodoo magic takes place to take place in the fully drying, curing, catalyzing, setting-up etc.


The coating needs to last at least a year or the customer will be unhappy it will be wash once every two months and I will top it at 6 month mark.


How long anything lasts depends upon a number of factors - one being,

How the surface is TOUCHED.


See my article here, although it's about a CAR the same principals apply to ANYTHING.


How long will a ceramic coating last on my car?


:)
 
@ Mike Phillips project went well very happy with product’s ease of use, looks and value of quantity. If anyone is looking for the best value in ceramic coatings, you receive an 8oz bottle or 236 mls For around $50. If you use a sale code. It rainbowed like a normal coating, it also hardened the applicator. One unquie characteristic of this coating popped up because I was doing a large RV. It would have took forever doing small sections so I applied using a DA for first coat and then by hand for the second coat. I waited 24 hours then applied to large section by hand that is when I noticed that the product hazed to a clear-white/rainbow. Hard to explain but I was doing such large sections that the coating rainbowed as expected but then hazed to almost clear slightly white & rainbowed haze very similar to another coating manufacturer that makes HPC coating that hazes. It hazed around 5 minute mark. It was not extremely difficult to wipe off once it hazed but harder than a wax or sealant. I prefer this wipe off style over a tacky or smeary coating. Water behavior is good nice round beads like a good ceramic should not as good as cquartz UK but better than a sealant or wax. Cquartz is the measuring stick for me. It easily maintains its hydrophobic’s up to 18 on my daily sitting outside 24/7.

It was 3 day project:
-Day one was normal chemical Decon, clay then 1 step polished with essence. I gave essence the 24 hour cure period that’s recommended.
-Day two since it was essence I did light coat prep wipe down with megs glass cleaner then applied 1st coating layer with DA
-Day three was 2nd coating layer by hand

Also fell off a ladder yesterday my whole but and thigh black and blue I got extremely lucky and didn’t break anything this is first time falling off ladder. since I had never fallen before and due to size of project I was up and down the ladder probably 25 times and got too comfortable and thatswhen it happened. Ladder safety is no joke I fell from top of RV onto concrete.
 
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