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73-87 Chevy _ GMC Trucks => Body, Glass & Paint => Topic started by: philo_beddoe on June 02, 2021, 03:47:22 pm

Title: What lies beneath….
Post by: philo_beddoe on June 02, 2021, 03:47:22 pm

I never knew what was under 40 years of crud. I think the first application was a Ziebart rustproofing done a long time ago, which is probably what saved the truck as there was nearly no rust when I bought it for $4500 about 6 years ago.

When I got the truck I sprayed tons of oil, wd40, lubricants, fluid film, you name it, I soaked everything. Then I recently installed both front brake calipers and discovered nearly 1/4 inch thick of pure solidified gunk. Sure it was protecting the metal, but why? Since we finished an almost frame-off restoration, the truck has not even seen water, let alone winter salt. So recently I went through 5 cans of engine degreaser in the entire engine bay and undercarriage and steam pressured washed it all off. But I had no idea about the rear wheel wells. I discovered the pure factory metal sea-mist green paint.

Now that it’s all clean, is there something I can put on there that’s non petroleum based? Maybe a light coat of truck bed liner spray? Or should I leave it be? How about a very light mist of wd40 just to protect the metal?

Here are the before and after photos.

(https://uploads.tapatalk-cdn.com/20210602/3a6988bcc0f3bdde93ff4ec032018ad9.jpg)


(https://uploads.tapatalk-cdn.com/20210602/b368ea155706921432cf2786c21ecdbe.jpg)


(https://uploads.tapatalk-cdn.com/20210602/b0002ee5fa34cc23dc5d33327d9d6de4.jpg)

Title: Re: What lies beneath….
Post by: Mr Diesel on June 02, 2021, 04:47:38 pm

It already has paint on there. Paint protects metal from rusting....

Title: Re: What lies beneath….
Post by: VileZambonie on June 02, 2021, 06:48:26 pm

Agreed, leave it unless you are exposing it to salt.

Title: Re: What lies beneath….
Post by: MY1978 on June 03, 2021, 03:09:56 pm

I have used Eastwood products and have been very happy with them.  Getting ready to knock down the rust on the underside and spray with internal frame.

https://www.eastwood.com/ 

Title: Re: What lies beneath….
Post by: Scott91370 on June 15, 2021, 10:16:18 am

WD40 will attract dust and dirt causing what you had.  Honestly spraying if off once or twice a year with a pressure washer, making sure to get into all the small areas, would be just fine.

Title: Re: What lies beneath….
Post by: philo_beddoe on July 01, 2021, 04:24:36 pm

I’m leaving it alone and just gonna check under there now and then, should be fine.