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Description
DINITROL Underbody Full Kit RC900 ML Cavity Wax 4941 Underbody Coat 4x4 Car DIN56This Kit is suitable to undercoat LARGE car the size of Ford Ranger, Land Rover Defender, Ford Transit Custom 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
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This Kit is suitable to undercoat LARGE car the size of Ford Ranger, Land Rover Defender, Ford Transit Custom 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:
- 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
4.8 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
Economical, easy to install, and does the job!
Style: BE-182 1-Pack
First, depending on your car model, replacing your cabin air filter is VERY easy.
With that out of the way, the shop wanted to charge almost 65 dollars to replace my cabin air filter. Decided to just buy one and do it myself. The only downside of waiting is that the air inside the car is not as fresh/clean when you're running your air. Anyways, you can usually get these kinds of filters between 20-45 dollars from auto part shops depending on the brand and features. I've used this brand and filter for the past 3 replacements on my car and they last just as long and filter just as well from my experience. No issues installing, and does in fact do a good job of filtering outside odors.
Highly recommended for the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
★★★★★ 5
Works great for 2013 Toyota RAV4
Fit my 2013 Toyota RAV4 perfectly. Easy to install. Well made full HEPA filter with carbon layer. As good as the expensive filters I use in my home. Have not had chance to see how well it works during spring allergy season yet, but I expect that it will do great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
★★★★★ 5
Best cabin filter I've ever used...
After my girlfriend dumped a container of Italian beef juice onto the passenger side floor mat and having it soak into the floor mat and the carpeting, it left my new car stinking of Beef gravy. I bought this to hopefully extract the annoying and horrible smell from my car. The filter is perfectly made and fit with exacting precision and minimal effort. If is well built and of superb quality, materials. The bright white cartridge style top side is pleated for maximum air to filter contact. The other side has these wonderful beads of activated charcoal/carbon that are for absorbing odors. As soon as I installed it and turned on my ventilation/ AC/Heat, I could smell the clean filter and also a sense of cleaner air. Hoping this will do the job in time!!
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Reviewed in the United States on July 17, 2023
★★★★★ 5
Nice filter
Easy to install great price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
★★★★★ 4
Good Fit & Fresh Air, But Slightly Reduced Airflow
I recently installed this cabin air filter in my 2024 4Runner, and it fits perfectly. It does a great job of filtering out the dusty Las Vegas air, leaving the cabin smelling fresh. However, I did notice a slight reduction in Airflow, on the highest blower setting, it feels like the output is about 25% lower than usual. It’s still early to tell how it will perform long term, but so far, it's doing its job well. If you prioritize air quality over maximum airflow, this is a solid choice at a good price too!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2025
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