SKU: 80070721511

DINITROL Underbody Full Kit RC900 ML Cavity Wax 4941 Underbody Coating SMALL CAR DIN50

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Description

DINITROL Underbody Full Kit RC900 ML Cavity Wax 4941 Underbody Coating SMALL CAR DIN50This Kit is suitable to undercoat SMALL cars 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 cars 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
Overpaintable
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: 80070721511

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4.6 ★★★★★
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F
foundbyXtopher
Bozeman, US
★★★★★ 4
Sturdy Folding Room Divider with Good Privacy Coverage and Modern Look
Color: Black, Size: 4 Panel-88''
I picked this room divider up to help separate space in a room without needing permanent walls, and overall it works very well for creating privacy while still looking clean and modern. The size is one of the biggest advantages. At 6 feet tall and roughly 88 inches wide, it creates a noticeable visual separation and works well for apartments, dorms, offices, studios, shared rooms, or content creation setups where you want to hide clutter or define different areas. The black fabric and frame design give it a simple modern appearance that blends easily into most spaces without looking overly decorative or outdated. It has a clean minimalist look that works especially well in offices, bedrooms, gaming rooms, or studio environments. Assembly was fairly straightforward overall. Once fully put together, the divider feels reasonably stable for normal indoor use. The folding panel design also makes it flexible enough to angle different ways depending on the room layout. The portability is another strong point. Since it folds down, it is much easier to move or reposition compared to permanent partitions or heavier wooden dividers. That makes it practical for temporary privacy setups or changing room layouts frequently. Privacy performance is solid visually. It blocks sightlines well enough for changing areas, workspaces, video backgrounds, or separating sections of a room. The fabric also softens the space slightly instead of feeling harsh or industrial. One thing worth noting is that while it provides visual privacy, it is not soundproof. It helps define space and reduce some openness, but conversations and noise will still pass through normally. The material quality feels decent for the price range. The frame is lightweight but functional, though I would still avoid rough handling or constant aggressive repositioning over time. Value for money is good considering the size, flexibility, and convenience. Similar room dividers can become expensive quickly, especially for taller multi-panel setups. Overall, this is best for anyone needing an affordable flexible way to create separation and privacy in shared or open spaces. It works especially well for apartments, dorms, offices, studios, remote work setups, or content creators wanting a cleaner background without permanent construction.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
R
RealDeal
San Leandro, US
★★★★★ 5
Looks nice but it's not very stylish, works as intended, happy with purchase
Color: Black, Size: 4 Panel-88''
This 6 ft room divider is exactly what I needed and works great! It was very easy to set up and took only a few minutes to assemble. I was pleasantly surprised by how lightweight it is, and it folds up easily for storage when not in use. The fabric-style panels look nice and provide good privacy, and the included clips help keep everything neatly in place. It’s a simple but effective design that does what it’s supposed to do. Because it’s lightweight, it may need a bit of extra support depending on where you place it—I used small weights on the base, and that completely solved the stability issue. Overall, I’m very happy with this purchase. It’s practical, easy to use, and a great value for the price. I would definitely recommend it! Industrial
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Reviewed in the United States on May 22, 2026
L
LSch01
West Palm Beach, US
★★★★★ 3
Assembly is harder than it should be; you get what you paid for
Color: Black, Size: 4 Panel-88''
Review of SUNALLY Room Divider 6FT Folding Privacy Screens, 4 Panel Fabric Divider for Room Separation, 88" W Freestanding Portable Wall Dividers Screen for Home Dorm Studio Office, Black I hate when I have to leave products a not so good review... Assembly is harder than it should be, mainly because there shouldn't BE any assembly. I have ordered several room divider privacy screens over the last couple of years and not one of them needed any kind of assembly. With that aside, it STILL was a pain in the sphincter to assemble. One of the "legs" just sits on top of a foot plate - it's not screwed in to anything. It's kind of flimsy and the base plates don't have anything on them to not scuff up the floor. With all that said, though, it does stand up and will block out what I need to block out. At the less-than-$50 price-point, it's kind of what should be expected. If I had purchased this outright, I would have considered sending it back and getting a higher quality. But if you only have $50 to spare and don't mind assembling things, it could be good for you.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
O
Ocean
Lowell, US
★★★★★ 5
Great buy
Color: Black, Size: 4 Panel-88''
This room divider is exactly what I needed. When you have 2 kids sharing a room and don’t want to spend a lot of money to divide their space this is what you can use. Believe it or not they are much happier now. This came in a small box which scared me but once I was able to get this up I was very pleased. It was easy to put together. The fabric is pretty good quality, it’s stable and stands up fine. Good value and worth it to have peace and quiet in the house.
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Reviewed in the United States on May 18, 2026
B
Verified Purchase
Beth Lukes
Alexandria, US
★★★★★ 1
Junk
Color: Black, Size: 4 Panel-88'', Color: Black, Size: 4 Panel-88''
Horrible. The parts are not right. It won’t fit together or disassemble and can’t return it like this. Parts won’t fit properly and missing holes for screws. Also, can’t get through to a person for any assistance. Picture shows the hole and then the lack of a hole where a screw belongs.
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Reviewed in the United States on May 13, 2026

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