Jump to content
NullZwei

Door rust prevention question

15 posts / 1376 viewsLast Reply

Recommended Posts

I just installed new doors and I'm looking for a good product to apply to the inside bottom of the doors to prevent water migration into the seam where the outer door skin lips over the inner structure. What product has anyone had good luck with for this purpose?

Share this post


Link to post
Share on other sites

A waxy product will seal the inside of the door. Wurth has it! Also make sure the chrome exterior trim with seal are in good cond. ( top of the door). This prevents water from entering the inside door area!

Share this post


Link to post
Share on other sites

I used a spray can of thin rust prevention fluid (not sure about Wurth but in Canada we have Krown, which works well) with a plastic tube attached. The idea is to start spraying in the upper corners into the seam, pushing the tube into the crease. Work your way down, and then along the bottom. Put an aluminium baking sheet under the open door - this will drip for a while. You can then reapply every few years. Some folks may prefer to fill bottom inside seam with seam filler (sort of thin putty that sets up) or heavy undercoating, but I prefer being able to get into the actual seam. Spray across the top inside of the door too. Ideally, all this is done with the door off the car and standing on end. I did one edge at a time and then rolled door 90 deg.

Before doing the above, I would consider applying some seam filler (I think Eastwood has something) along the seam on the outside bottom of the door that faces in to rocker.

Share this post


Link to post
Share on other sites

I used a spray can of thin rust prevention fluid (not sure about Wurth but in Canada we have Krown, which works well) with a plastic tube attached. The idea is to start spraying in the upper corners into the seam, pushing the tube into the crease. Work your way down, and then along the bottom. Put an aluminium baking sheet under the open door - this will drip for a while. You can then reapply every few years. Some folks may prefer to fill bottom inside seam with seam filler (sort of thin putty that sets up) or heavy undercoating, but I prefer being able to get into the actual seam. Spray across the top inside of the door too. Ideally, all this is done with the door off the car and standing on end. I did one edge at a time and then rolled door 90 deg.

Before doing the above, I would consider applying some seam filler (I think Eastwood has something) along the seam on the outside bottom of the door that faces in to rocker.

Share this post


Link to post
Share on other sites

Good stuff I have used in the past is a product called Waxoyl. Made in the UK, do not know where to source, but willing to bet places that provide bits for LBCs, like Moss Motors or Victoria British would have it.

Earl

74 02Lux

02 M Roadster

72 Volvo 1800ES

Share this post


Link to post
Share on other sites

In 1997 I sprayed 3M's "rust fighter I" into the (not all that pristine) doors on

Jenn's car. 15 years later, all outside winters, there's no door rust yet.

what I gone and done...

t

Share this post


Link to post
Share on other sites

Sorry for duplicate posts.

I've used Waxoyl too. I used it on all the inside panels, including the nose, on my CS, and it's still there 25 years later. It sets up nicely on vertical surfaces, but doesn't creep as well as the thinner spray. Consider it for the rest of the inside door panel after the seam spray.

Share this post


Link to post
Share on other sites

is called RusFree--comes in a spray can with a long wand extension. I've used it for years on blind interior panels like your doors with very good results.

mike

Share this post


Link to post
Share on other sites

If I recall waxOyl is temperature sensitive, mainly to the heat, it can melt.

If Florida with a black car it may end up going out the drain holes over time.

Share this post


Link to post
Share on other sites

Hi there

I used a polyurethane paint called Rust Bullet http://www.rustbullet.com/ . I first degreased and cleaned with POR15s Marine Clean and Prep and Ready. The PU paint is nice because it requires (molecular) moisture to set so it pulls it from the metal (if any) (apposed to being dripping wet). Also, tough as nails.

Regards

Share this post


Link to post
Share on other sites

Goin off topic, but think its a good one, how can we prevent rust in rockers, same idea as these door tips but not sure if possible or how to? thank u kindly

Share this post


Link to post
Share on other sites

I did the same thing to the rockers as the doors, only a lot more so, with

similarly good results...

Lots of whatever 'waxy oil' product you choose, and do your best to try to

spray the entire perimeter.

Most of 'em will let the excess drain out, and that seemed to work great in our case.

t

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.




×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.