FREE Shipping on orders over $150 (Weight Restrictions Apply) Learn More
This is a heavy-duty version of the Dynax S50 designed to go on the underbody of cars.
It's a large (750ml) aerosol spray.
Jack the car up and spray liberally over the underside of the car/ trailer / caravan to protect it from rusting. Ideal for people who live close to the sea or use their vehicles on the beach.
Good for Boat trailers, it might not look pretty but it works.
It was designed for car underbody use in the UK with salt spray on the icy roads, notorious for causing rust.
It won't crack like the bitumen-based normal underbody protectors that dry out in time, crack and then allow water into the metal with the invertible rust that follows.
It leaves a dark brown finish.
Dynax-UB is a high-performance anti-corrosion wax that provides long-lasting steel surface protection.
Dynax-UB contains elastic polymers that create a tougher wax coating that is more resistant to abrasion than normal wax coatings – this property enables this wax to protect vehicle undersides for prolonged periods.
Unlike traditional bitumen underseals, Dynax-UB will not peel. Peeling underbody coatings trap water against the steel surface, accelerating corrosion.
Dynax-UB forms a touch-dry, brown, wax-like film.
Dynax-UB can arrest existing corrosion and provide long-term protection to pre-corroded and corrosion-free surfaces.
Dynax-UB substantially outperforms competitive material in salt-spray trials under conditions of ASTM B117. Salt-spray performance should never be overlooked as vehicle undersides and cavities are always exposed to this attack from winter road salt.
Aerosol Dynax-UB: Large 750ml aerosol comes with a standard spray head and straw attachment to get into nooks produces professional ‘stippled’ finish.
1ltr Pail Dynax-UB:
The viscous formulation for application with a brush or roller.
5ltr Jerry Can Dynax-UB:
A formulation for use with compressor and suitable spray equipment.
Use a brush or roller to apply Dynax-UB. Dynax-UB should be applied to dry surface free of loose, flaky rust or coatings, although the highly polar corrosion inhibitors will arrest existing corrosion.
Dynax-UB will vary in viscosity with temperature; it may appear to have a soft grainy appearance to firm gel. Apply at least two coats to the surface at 24 hr intervals. This first primes the surface and allows subsequent coats to build higher film thickness.
Dynax-UB will provide excellent protection at a wide-range of film thickness. Aim to achieve a uniform dry-film thickness of around 80 – 100 microns.
Please be advised this product is DG Aerosol cannot be sent by Express Post (Air) only by road
Please allow extra time for delivery to regional and remote areas.
Free Shipping on orders over $150 excluding remote areas and certain weight restrictions apply for free shipping in each state.
The following qualifies for free shipping: We select whether we use courier or Australia Post depending on address. if you would like to ship with Australia Post please select Parcel Post.
Note: We do not ship to PO Boxes or Parcel Lockers with free shipping.
*We will not be held responsible for delays or late delivery of Australia Post or courier services.
*If a parcel does not arrive as anticipated, please allow 5-7 working days for Australia Post or couriers to complete process of tracking and locating as in most cases it turns up after 3-7 days of expected delivery. We cannot refund or send another item until this process is completed.
*We don't take responsibility for orders that are lost or stolen once the parcel has been delivered to the correct delivery address.
*Items that are over 21kg may require to pay extra freight costs if in regional or remote areas - we will contact you if this is the case.
All of our prices are in Australian dollars (AUD) and include GST (Goods and services tax)
At The Detailing Shed, we’re committed to supplying premium-grade car care products. Due to the nature of many of our items, particularly chemicals, our return policy has recently been updated. Please review the following carefully before submitting a return or refund request.
Unused and unopened accessories such as brushes, pads, and towels may be eligible for return, pending approval by our customer service team. Email us at info@detailingshed.com.au with your order number and photos of the item(s) to request approval.
If you receive a damaged or incorrect item, please notify us within 10 days of delivery. Send an email to info@detailingshed.com.au with your order number and clear photos of the issue. We’ll work quickly to arrange a replacement or refund if stock is unavailable.
If you're returning an item valued over $50, we recommend using a trackable shipping service or purchasing shipping insurance. We are not responsible for returned items that are lost in transit.
If an item hasn’t arrived, please allow 7–15 business days after Australia Post or the courier begins their investigation. We’ll notify you once your case is resolved and any refund or replacement is processed.
Please note: Product packaging or colours may vary from online images due to manufacturer updates. Refunds will not be issued for these variations unless the product is faulty or incorrect.
We're here to help
If you need to contact us for advice on any of the products, please email us at info@detailingshed.com.au
Please include description of the product you are interested. Some info of you car, and also what you are trying to achieve.
We may also review our blogsfor product recommendations.