Wurth High Build UnderBody UnderSeal- Review and How-To

[Todd@RUPES]

Wurth High Build UnderBody UnderSeal

Wurth makes some amazing car care products. Everything I have used of theirs has been phenomenal. I have always noticed that the under-body coating on my Mazdaspeed 3 has been a little `lacking`. I think the robots at the factory stayed out to late the night before or they are part of a union. Either ways I was excited to try to touch up Mazda`s work using quality products.

To spray the missing areas required jacking the car up and taking off the wheels. If you don`t know how to do this safely, I wouldn`t recommend doing this job.

I started by pulling the E brake and putting the 6 speed (close ratio FTW) gear selector in first. I chalked the opposite wheels with 2 x 4`s. (Which actually measure 1 1/2 x 3 1/2, but that`s a story for a different forum).




Since I planned on swapping the tires front-to-back (need some more tread depth since I enjoy burning rubber into black streaks on the pavement), I decided to jack the entire side of the car. (Note: Most manufacturers recommend lifting one wheel at a time and using jack-stands).

I started by breaking the lug`s off the wheels. I really didn`t break them, rather I stood on the lug bar until they loosened.




Then, against manufacturers recommendations (and against what I am officially recommending) I jacked the side of the car up and removed the wheels.




I was also planning on showing a little BLACKFIRE love by cleaning the wheels, but I noticed that my front tires where burned to the cords so there is no point in cleaning the wheels at this point.

You can see the rather terrible job that Mazda did with applying the coating.




After cleaning the wheel well thoroughly it only got worse. I used BLACKFIRE All N One APC and a Montana Boar`s Hair Wheel Brush to remove as much soiling as possible.




Since Wurth High Build UnderBody UnderSeal is a areosal spray it is prudent to mask off anything you don`t want covered. I used painters tape, the remains of a card board box, and some plastic baggies. The spray itself is very precise, which I didn`t know yet, so I could have done with less taping. However it is better mask extra then scrub undercoating off later.




Wurth recommends cleaning the area`s first with Wurth Clean-Solve, so that`s what I did.




It is an aerosol degreaser and cleaner. Spray it on to the towel and wipe. I was amazed at how much more dirt and grime came off.




I allowed the Clean-Solve to dry and shook the UnderCoating UnderSeal vigorously for 1 minute, as recommended.




The I sprayed it on in smooth, over lapping passes. Nothing too fancy here. I made sure to lay down an even coat over most of the area.




After the first coat (admittedly I could use a second coat and will apply one after I get new tires.




The Underbody UnderSeal was dry to the touch in about 15 minutes. I removed all of the masking and snapped a few pictures.






Here is what it looks like with the tire back on and the car lowered off the jack.




Finally it is highly recommended to use a torque wrench when tightening your wheels.

[mjlinane]

Nice!

[Pats300zx]

Nice.. !!!!! What a difference...

[Old Pirate]

Thanks Todd for the write up on this fine product from Wurth.

[embolism]

saw this in the what`s new section and am thinking about it for my underbody

Nice job Todd. The wells look so much better now.

time for some new tires though...

[rzatch]

Nice job and good review Todd. A tip for masking/ covering unusual shapes is to use aluminum foil. It forms to any shape and holds itself on so no need to try and tape it.

[Reality33]

I am so glad you posted this! Some of the undercoating on the rear of my S2000 recently came off and I have wanted to find out how to re-apply it.

Lo and behold!

This will be in the basket very soon!

[Dr Oldz]

Nice write up! Looks much better after!

[classofshine]

Looks nice, I need to touch up the frame of my truck some spring. May have to look into this product. Is there texture to the undercoating spray if its put on a smooth surface?

[Rocket]

So this is pretty much an undercoating?

Looks much better after.

[Todd@RUPES]

Looks nice, I need to touch up the frame of my truck some spring. May have to look into this product. Is there texture to the undercoating spray if its put on a smooth surface?

Yes, it is a high build rubberized spray so it lays down with a peel like texture.

[TroyScherer]

Thanks for the review Todd. I have looked at this product a few times and have never pulled the trigger. I was always afraid it would be thin or not turn out right. I may need to add this to my next order.

[rider9195]

Nice Todd! Those tires do look a little low. But then again you guys don`t get snow like us Northerners get.

[Todd@RUPES]

Thanks for the review Todd. I have looked at this product a few times and have never pulled the trigger. I was always afraid it would be thin or not turn out right. I may need to add this to my next order.

I was a little anxious as well but it couldn`t have been easier to use.

[Bunky]

This is definitely something I need to get.