SKU: 76723005483

DINITROL Underbody Full Kit RC900 MX Cavity Wax 4941 Underbody Coating SMALL CAR DIN54

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Description

DINITROL Underbody Full Kit RC900 MX Cavity Wax 4941 Underbody Coating SMALL CAR DIN54This Kit is suitable to undercoat SMALL car the size of Citroen C1, Toyota Aygo etc.. Below you will find Step by Step instructions how to use this kit. DINITROL RC 900 is a rust converter based on an organic chelate complex combined with epoxy resin. It actively converts the rust on the substrate into a stable organic iron complex. When the product dries, it forms an impenetrable barrier to further corrosion. DINITROL RC 900 penetrates about 7 10

 This Kit is suitable to undercoat SMALL car the size of Citroen C1, Toyota Aygo etc..

Below you will find Step by Step instructions how to use this kit.

 

DINITROL RC 900 is a rust converter based on an organic chelate complex combined with epoxy resin. It actively converts the rust on the substrate into a stable organic iron complex. When the product dries, it forms an impenetrable barrier to further corrosion. DINITROL RC 900 penetrates about 7-10 times deeper into the rust than conventional rust conversion products and forms a dry and strong adhesive film that is suitable as a base for the lacquer structure and as a carrier for other corrosion protection products.
Benefits
Polymer film formed on converted rust
Deep effect
Easy application
Deep working properties
Over paintable
Technical Data
Colour amber-coloured
Appearance solution
Film type hard
Density 0,9 g/cm3
Viscosity 118 cSt
Solids 16%
Recommended film thickness 130 µm
Yield ~ 60 g/m² per coat
Drying time 24 hours at 20°C
Storage time 10 years (between 15°C and 25°C)
Available in 400 ml Spray
DINITROL ML was developed for use in closed cavities such as doors, frame parts and external hinges and gaps. The product can be used as corrosion protection for used cars, trucks, buses and other vehicles.
Benefits
Brown
Extremely Penetrating
Stops ongoing corrosion
Water displacing
Oily, flexible film
Wet in wet with bitumen vehicle Underbody coating
Technical Data
Colour brown
Type of film oily, greasy
Density at 23°C 860 kg/m³
Viscosity at 23°C, (DIN 2) 60 seconds
Dry matter content 46% by weight
Flash point 40°C
Aromatic content in solvent < 1 %
Recommended film thickness 10 ?m
Recommended film thickness wet 30 ?m
Drying time 1 hour
Heat resistance 80°C
Low temperature adhesion < - 40°C
Salt spray test > 96 hours
Penetration in 50 ?m wide gap > 70 mm
Effect on car paint none
Removability White Spirit
Available in 1 L Miniservice / 5L Pail / 20 L Pail
60 L Drum / 208 L Drum / Container
DINITROL 4941 / 4941 CAR is a long term protective product. The product leaves a firm, black film with short drying time and good adhesion and flexibility on all metal surfaces, rubber and plastic parts.
Benefits
OEM references
Robust universal film
Self-healing
Easily applied
Good abrasion resistance
Component protection
Technical Data
Colour - black
Type of film - hard, waxy
Density at 23°C - approx. 1100 kg/m³
Viscosity at 23°C - 800 mPas
Dry matter content - 69% by weight
Flash point - 36°C
Aromatic content in solvent - 0,5%
Recommended film thickness wet - 700 ?m
Recommended layer thickness - 300 ? 500 ?m
Drying time - 6 ? 12 Stunden through dry
Low temperature adhesion - -20°C
Removability - Hydrocarbon solvents
Heat resistance - 130°C
Salt spray resistance, 300 ?m - 1500 hours

HOW TO USE
Step One
Before starting the DIY rustproofing wash the vehicle from dirt and grease and allow to completely dry
Once dry, mask up any areas that you do not want to spray. Wear suitable protective clothing and place plastic floor covering under the vehicle to protect the surface from product drips. You may also require a wire brush to remove any loose material to find the solid base metal.
Step Two
Treat any rust present on the vehicle with the specialist RC900 Convertor product
Remove any flaking rust and apply the DINITROL® RC900 Rust convertor to the remaining rust making sure the edges are coated to ensure a good seal. This will convert rust into a stable organic iron complex. Drying time is up to 24 hours
Step Three
Spray ML cavity wax into all vehicle underbody box sections
Using an injection pipe or extension nozzle start to inject the product into internal bodywork and chassis cavities. Please note injection pipes or extended hose are for cavity wax applications only and not for applying vehicle underbody coatings. Drying time is up to 2-3 hours
Step Four
Also apply a thin coat of the ML cavity wax to the underbody of the vehicle
Spraying a thin coat (light misting) of cavity wax prior to applying the underbody coating softens up any existing coating that may be present and helps with the adhesion of the underbody or stone chip coating. Cavity waxes also contain rust inhibitors whilst the underbody coating combats the highly corrosive effects of road salt and abrasion. Does not have to dry
Step Five
Apply the underbody coating 4941 over the underbody cavity wax layer, this can be done while still wet
In some circumstances when working in a cold environment it may be necessary to warm the underbody coating (up to the room temperature) prior to spraying due to being much thicker than the cavity wax. To obtain the optimum protection a typical thickness of 2mm wet should be applied this will dry to around 1mm. Drying time is up to 12 hours
Step Six
Finally remember to clean any excess or overspray from the vehicle
To clean equipment use Benzene based spirit. Your vehicle is now protected from corrosion, please remember to inspect the underbody annually and touch the coating where necessary to check the surface in more detail.
Drying times may vary based on the environment. Times are estimate based on dry, room temperature environment ,
This kit product quantities are estimated to the size of the average car in similar class and may vary.
IMPORTANT NOTE:
If you are not sure if this Undercoat kit will be suitable for your size of car, please send us a message with car details so we can advise on the correct Underbody treatment kit.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76723005483

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4.4 ★★★★★
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Product Reviews
J
JEFF
Draper, US
★★★★★ 5
Beef Tallow Sunscreen
That dry, stretched sensation that I sometimes get from using other sunscreens was not something that I experienced with this one. On the contrary, I had the impression that my skin remained supple and pleasant throughout the morning. I used it prior to going about my errands, having a drive, going for a stroll outdoors, and spending time at the park. To my satisfaction, I did not feel the need to quickly apply another moisturizing lotion on top of the one I was using in order to restore the natural feel of my skin. Simply said, it made it simpler for me to utilize on a daily basis. When I wore it for a longer period of time, I also paid attention to how it felt on my face. Even though I wore it on a number of days when the temperature was high, I did not experience any discomfort as the day progressed. Despite the fact that I was aware that I was wearing sunscreen, I did not feel any discomfort or want to wash my face straight away with it. Because I am quite particular about the products that I use on my face, I found that to be really helpful. In addition to having a sunscreen that is dependable, I want it to be something that I can really endure for a considerable amount of time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
K
Kate
Dallas, US
★★★★★ 5
The Best Way to Keep My Skin Happy Under the Sun
I am so happy that I found this special white cream because it is the best helper for my face and arms when I am playing outside in the big bright sun. I keep the bottle right near my sink so I can put it on before I go out to play, and it is very easy to use because the cream feels very smooth and soft like butter when I rub it on my skin. Sometimes other white creams feel very chalky or yucky like flour, but this one is a great deal for the price because it blends in so well and it does not leave a big white ghost face on me once I rub it in. It feels very simple and clean on my skin and it does not have a scary or strong smell, which makes me very happy because it does not feel greasy or oily like a piece of pizza. Even when I put more on later in the day, it does not clog up my skin or feel heavy like a thick blanket, so it is a wonderful value because I can use it all day long and stay comfortable. The tube is a perfect size to throw in my backpack or my travel bag when we go on a trip, and it feels very strong and tough like it will last a long time without the cap breaking off. It is a very practical and smart tool for my skin because it forms a strong layer that I can see at first to make sure I am safe, and it feels much better and more dependable than thin lotions that disappear too fast. I think everyone who likes to be outdoors should get this because it is durable, it works perfectly to keep me safe, and it is so simple and easy to use that it never gets in the way of my fun!
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Reviewed in the United States on April 14, 2026
A
Aurora
Chelsea, US
★★★★★ 5
Comfortable to Wear and Easy to Use Every Day
The texture was the first thing I felt. First application feels rather rich but unexpectedly distributes easily throughout the skin. I was worried it would feel heavy, but it blended in more readily than I thought and didn’t leave my skin feeling too oily afterwards. I love that you can use it on the body and face too. One product for the entire family is easier and saves room when packing for trips or holidays. I have used it on myself and my kids when we go out and it has been comfy for all of us to wear. Another thing I appreciate is my skin feels hydrated after using it. Love things that make my mornings easier on hectic mornings. The mixture is smooth and pleasant to wear all day long and does not feel sticky. The container is functional and simple to throw in a beach bag or handbag. I have brought it to soccer games, trips to the playground, family picnics and it has been no problem.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
A
Amazon Customer
Omaha, US
★★★★★ 5
Less cast and the zinc scent is mild.
I use sunscreen regularly. One of the aspects I do not like is the white cast I get from zinc-based SPFs. This one is zinc-based but it has tallow and PDRN. I want to see if they make any difference when it comes application and feel. MY EXPERIENCE WITH THE PRODUCT 1. I received Mystic Orchard’s beef tallow sunscreen with PDRN. Comparing its value, I think the volume is pretty good. I received 2.8 ounces. 2. When it comes to scent, I smell the metallic scent but it is not as bad as the one I have been using for swimming. It is there, but pretty faint. 3. You can tell by the sheen that it is zinc-based. It has the same consistency. 4. What I noticed though is that the white cast is not too bad. It blends fast with the tallow. 5. I like tallows because they contain fat-soluble vitamins like vitamin E for some antioxidants. 6. The cica is nice too for those who need a calming ingredient with their sunscreen. 7. I think this would be good for when going out. I do not think I will be using it for swimming since it is mild in scent and cast. Better to use it elsewhere than just for swimming. OVERALL IMPRESSION: I think that this SPF sunscreen with tallow and PDRN is cost-effective and worth its value if you want a zinc-based sunscreen with less cast and milder scent.
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Reviewed in the United States on April 21, 2026
R
Rebeca
Belleville, US
★★★★★ 5
Moisturizing Sunscreen
Size: 2.82 Fl Oz (Pack of 1)
The grass-fed tallow base makes it deeply moisturizing—it feels like a nourishing balm. The PDRN complex is a nice bonus for repair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

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