Review: CarPro HydrO2: Touch-less Silica Sealant (Concentrate)
I'm days late with what I promised and sincerely apologize to all. It wasn't for lack of trying! I hope you enjoy the review.
Product Claims:
Introducing the incredibly easy to use, effective, and revolutionary true wipe-less silica sealant! CarPro HydrO2 is formulated with Hydrophilic glass fibers, silicon polymers, and fluoropolymers and can be applied to all vehicle surfaces! Paint, glass, plastic, convertible tops, wheels, calipers, and wheel wells are all easily within reach with HydrO2. HydrO2 was specifically formulated to save time and therefore money for all the Car Pros and enthusiasts alike. This new innovative coat forms an ultra-water-repellent coating and is applied by simply spraying and then rinsing off with only water!
A simple spray and rinse application saves time, and produces a brilliant protected shine that is incredibly easy to maintain. HydrO2 reacts chemically with water contact and transforms from hydrophilic to hydrophobic. The pressure from spraying with water accelerates the bonding of HydrO2 to the surface immediately creating a hydrophobic layer.
HydrO2 is climate and temperature stable, and is an extremely effective long lasting water repellent that is resistant to nearly all acids, alkaline solutions, and solvents while also offering significant UV protection for 1 to 3 months.
Love….. this picture from Sunday morning…. Just a little tease
Introduction:
When I heard HydrO2 was coming I was very excited and immediately had many questions. What’s the durability? What’s the cost per vehicle? What surfaces will it bond to? etc, etc. This review will attempt to answer these and other questions as well, although some will come via updates and further testing.
Product Details:
01.- Packaging: Plastic bottle / Measuring Cap / Cool label
2A.- Directions: Easy as pie (See my how to for various tips for PERFECT application every time)
2B.- Dilution Ratio: Minimum of 75% water / 25% HydrO2
03.- Viscosity: Thin, Slippery (Foams a little when shaken)
04.- Color: Green
05.- Scent: Mild
06.- Current Price: 1.7 oz. (50ml) = $ 9.99
07.- Current Price: 3.38 oz. (100ml) = $ 17.99
08.- Current Price: 16.9 oz. (500ml) = $ 54.99
09.- Current Price: 33.8 oz. (1000ml) = $ 109.99
10 - Current Price: 1.3 Gal. (5000ml) = $489.99
11.-Manufacturer: CarPro
12.-Made in: South Korea
Directions & New Tips:
1.-In shaded location or shop wash your vehicle and remove any dirt from the surfaces. (I prefer IX Snow soap or Reset for use before Hydro2) Surface must be well cleaned from soap residue.
2.- Apply HydrO2 to wet surface only. (If applying to dry surfaces must be spray and wipe on small sections.)
3.-Dilute 1 part HydrO2 to 3 parts water (measure cap supplied 30ml), and shake. We recommend a spray bottle for fast and easy application with minimal use of product.
4.-Spray fine even mist of diluted HydrO2 on one third of vehicle (for instance roof, hood, windshield, and lid).
5.-Immediately rinse well with strong water pressure or using a pressure washer to produce physical shock and create a well formed coat.
6.-Repeat steps 4 & 5 on one side of the vehicle and then repeat 4 & 5 on the final untreated side.
7.-Finish by "flood rinsing" the vehicle without a spray nozzle to push all the water off from top down.
8.-Dry any remaining water by blowing off or with a clean microfiber waffle weave towel.
Environmental Conditions at time of testing:
Temperature: 70F - 75F
Humidity: 32% - 40%
Product: (500ml shown)

Additional tools used in testing application methods:
Spray Bottle
HVLP
First Subject –The Blue Saturn SL 1999 - Testing
The condition of the paint was not good. No polish, clay device, or Iron X has been used in a very long time and it’s probably been months since its last wash. Lsp varies across surfaces and most areas in differing states of decay and affects from various tests. The windshield and drivers side glass however had Flyby30 applied to them approximately 8 weeks ago and are in great shape. (Spoiler: Hydro loves glass ☺)
Preparation:
One of the most important questions surrounding any lsp is, “How do I prepare the surface?” Testing the answer to this was 1/2 of the main focus on my first day of testing. While we all know we would first like to decontaminate and polish a vehicle before adding protection I think many of you also see HydrO2 as a special corner of the detailing market where you would like to simply wash the car and quickly add a layer of protection that outshines and stays cleaner than other products while protcting the finish from the environment.
Typically with a vehicle in this condition we would (at a bare minimum) use Iron x or Polyshave before application but this was/is to be our “worst case” test vehicle where we will attempt to learn first the best method of application, second how much differing soaps used in the wash stage have an affect on the coating, and third if leftover wax affects the coating.
I began by washing different sections with 3 different soaps including Ultima Paint Guard Wash (Driver rear), CarPro Iron X Snow Soap (Passenger Rear), and Dawn (Front end). All surfaces were rinsed very well. On the dawn sections the mitt was used during the rinse cycles as well to remove any remaining soap residue. This is to see long term what affect anything in the soaps have on bonding. As you may have noticed CarPro recommends not using gloss enhancing shampoos to clean the vehicle before application of Hydro. This is a standard request when dealing with silica products as the oils and fillers in traditional products can lower the durability of a silica sealant.
On to the part I had been anticipating! I had 4 choices but narrowed them down to HVLP and Sky Line chemical resistant spray bottle. First up was…
HVLP Application:
I decided to test the amount needed via HVLP for my first go with HydrO2 so I selected my smallest gun (1.0 needle) and poured 1 oz. (30ml) HydrO2 into the canister followed by 3 oz. of distilled water. I was able to apply to the full vehicle in less than 2 minutes of application time with a light mist. I did however find applying to the entire vehicle in one shot rather than 2 to 4 offers the possibility of streaks. Splitting it up (as I’ll show on the Mustang later) mitigates the streaking threat. Next I sprayed the surface hard with the hose as directed and was done a few minutes later and ready to dry the vehicle. (Video link further down)
I'm days late with what I promised and sincerely apologize to all. It wasn't for lack of trying! I hope you enjoy the review.
Product Claims:
Introducing the incredibly easy to use, effective, and revolutionary true wipe-less silica sealant! CarPro HydrO2 is formulated with Hydrophilic glass fibers, silicon polymers, and fluoropolymers and can be applied to all vehicle surfaces! Paint, glass, plastic, convertible tops, wheels, calipers, and wheel wells are all easily within reach with HydrO2. HydrO2 was specifically formulated to save time and therefore money for all the Car Pros and enthusiasts alike. This new innovative coat forms an ultra-water-repellent coating and is applied by simply spraying and then rinsing off with only water!
A simple spray and rinse application saves time, and produces a brilliant protected shine that is incredibly easy to maintain. HydrO2 reacts chemically with water contact and transforms from hydrophilic to hydrophobic. The pressure from spraying with water accelerates the bonding of HydrO2 to the surface immediately creating a hydrophobic layer.
HydrO2 is climate and temperature stable, and is an extremely effective long lasting water repellent that is resistant to nearly all acids, alkaline solutions, and solvents while also offering significant UV protection for 1 to 3 months.
Love….. this picture from Sunday morning…. Just a little tease

Introduction:
When I heard HydrO2 was coming I was very excited and immediately had many questions. What’s the durability? What’s the cost per vehicle? What surfaces will it bond to? etc, etc. This review will attempt to answer these and other questions as well, although some will come via updates and further testing.
Product Details:
01.- Packaging: Plastic bottle / Measuring Cap / Cool label
2A.- Directions: Easy as pie (See my how to for various tips for PERFECT application every time)
2B.- Dilution Ratio: Minimum of 75% water / 25% HydrO2
03.- Viscosity: Thin, Slippery (Foams a little when shaken)
04.- Color: Green
05.- Scent: Mild
06.- Current Price: 1.7 oz. (50ml) = $ 9.99
07.- Current Price: 3.38 oz. (100ml) = $ 17.99
08.- Current Price: 16.9 oz. (500ml) = $ 54.99
09.- Current Price: 33.8 oz. (1000ml) = $ 109.99
10 - Current Price: 1.3 Gal. (5000ml) = $489.99
11.-Manufacturer: CarPro
12.-Made in: South Korea
Directions & New Tips:
1.-In shaded location or shop wash your vehicle and remove any dirt from the surfaces. (I prefer IX Snow soap or Reset for use before Hydro2) Surface must be well cleaned from soap residue.
2.- Apply HydrO2 to wet surface only. (If applying to dry surfaces must be spray and wipe on small sections.)
3.-Dilute 1 part HydrO2 to 3 parts water (measure cap supplied 30ml), and shake. We recommend a spray bottle for fast and easy application with minimal use of product.
4.-Spray fine even mist of diluted HydrO2 on one third of vehicle (for instance roof, hood, windshield, and lid).
5.-Immediately rinse well with strong water pressure or using a pressure washer to produce physical shock and create a well formed coat.
6.-Repeat steps 4 & 5 on one side of the vehicle and then repeat 4 & 5 on the final untreated side.
7.-Finish by "flood rinsing" the vehicle without a spray nozzle to push all the water off from top down.
8.-Dry any remaining water by blowing off or with a clean microfiber waffle weave towel.
Environmental Conditions at time of testing:
Temperature: 70F - 75F
Humidity: 32% - 40%
Product: (500ml shown)

Additional tools used in testing application methods:
Spray Bottle
HVLP
First Subject –The Blue Saturn SL 1999 - Testing
The condition of the paint was not good. No polish, clay device, or Iron X has been used in a very long time and it’s probably been months since its last wash. Lsp varies across surfaces and most areas in differing states of decay and affects from various tests. The windshield and drivers side glass however had Flyby30 applied to them approximately 8 weeks ago and are in great shape. (Spoiler: Hydro loves glass ☺)
Preparation:
One of the most important questions surrounding any lsp is, “How do I prepare the surface?” Testing the answer to this was 1/2 of the main focus on my first day of testing. While we all know we would first like to decontaminate and polish a vehicle before adding protection I think many of you also see HydrO2 as a special corner of the detailing market where you would like to simply wash the car and quickly add a layer of protection that outshines and stays cleaner than other products while protcting the finish from the environment.
Typically with a vehicle in this condition we would (at a bare minimum) use Iron x or Polyshave before application but this was/is to be our “worst case” test vehicle where we will attempt to learn first the best method of application, second how much differing soaps used in the wash stage have an affect on the coating, and third if leftover wax affects the coating.
I began by washing different sections with 3 different soaps including Ultima Paint Guard Wash (Driver rear), CarPro Iron X Snow Soap (Passenger Rear), and Dawn (Front end). All surfaces were rinsed very well. On the dawn sections the mitt was used during the rinse cycles as well to remove any remaining soap residue. This is to see long term what affect anything in the soaps have on bonding. As you may have noticed CarPro recommends not using gloss enhancing shampoos to clean the vehicle before application of Hydro. This is a standard request when dealing with silica products as the oils and fillers in traditional products can lower the durability of a silica sealant.


On to the part I had been anticipating! I had 4 choices but narrowed them down to HVLP and Sky Line chemical resistant spray bottle. First up was…


HVLP Application:
I decided to test the amount needed via HVLP for my first go with HydrO2 so I selected my smallest gun (1.0 needle) and poured 1 oz. (30ml) HydrO2 into the canister followed by 3 oz. of distilled water. I was able to apply to the full vehicle in less than 2 minutes of application time with a light mist. I did however find applying to the entire vehicle in one shot rather than 2 to 4 offers the possibility of streaks. Splitting it up (as I’ll show on the Mustang later) mitigates the streaking threat. Next I sprayed the surface hard with the hose as directed and was done a few minutes later and ready to dry the vehicle. (Video link further down)

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