Fluid Film, Good rust inhibiter. What are negatives Options

[rstover]

On places that I can't or won't paint I use this. I used it in the rear section of the tunnel from the gear shift to back. On the front part I was able to clean and paint. I used it in the bottom of the floor pan. The wiper assembly was cleaned using it.

I was putting a little on the metal parts of the valve assembly for the fresh air and defrroster and was surprised to see how it seemed to blacken and clean the plastic. It seemed to work better than back to black and really made the parts look new. The label say it will not harm plastic and I have had it on the air valve for over a week and it seems to stay the same. As of now, unless I hear something else I plan to use it on the air box.. I would like to know if anyone has had experience with this product.

[rstover]

I sorta let this question die and maybe it should, but I have used this in several places on the restoration -preservation and believe it to be effective.

I try not to use in places or parts that will be painted in the future. After thinking about what to do with the underside of the floor pan for a long time I started cleaning it with paint thinner. It had a coating of a oily type of material on it that came off quite easily There was some surface rust in some areas, but otherwise it was in very good shape. I have decided to leave it as it is with its bumps and warts for the forseeable future. The pan was treated with fluid film which I have read is used in some places as a undercoating.

I used this on the inside of the doors on the metal apparatus that raises and lowers the windows. This was done a couple of years ago and it appears to be effective.

As mentioned before I used it to clean the wiper unit.



I spray it on, let it sit for awhile and then wipe it off. This has been gone at least 3 times over the last couple of months.

When I used it on the tunnel from the shifter to the back firewall I would spray it in the various openings let it sit overnight and the swab it out with a swab made with a metal strap about 1/2 wide, 1/8 thick and maybe 28 in long. Cloth rags were taped to the end of the strap. This was done numerous times over a period of time.

One of my motivations for restarting this is how it seems to clean the plastic parts of the air box and would like to know if anyone has had any experence using this on plastic. It has worked better and easier than any other product that I have tried.

Another reason is that when the car is finished with paint I am thinking about using it in various cavitis where rust hides. for example the left front corner of fire wall and the cavitities in the rear fire wall.

Back to the plastic question I would like to know what others like for cleaning and preserving plastic.