How to paint under hood items! - Exterior Forum

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How to paint under hood items!
Saturday, May 13, 2006 7:52 PM
I'm in the process of painting to under hood area. All the metal stuff is done, Valve cover, brackets, bolts, clamps, everything!

Now comes the plastic items, how to I paint them.

1. Coolant Bottle...what paint to use, primer or not?

2. That plastic cover in the middle of the ECOTEC valve cover that holds the wires down? - How do I paint that thing....type of paint, primer or not? High Temp? HELP!

Looking for some help here on it.....Thanks






Silver Stripey makes your Day!

Re: How to paint under hood items!
Saturday, May 13, 2006 8:40 PM
The middle part you can paint with any rattle can paint. That's all I used and it has lasted over 2 years.



I used to race cars, now I race myself.
5K PB: 24:50
10K PB: 54:26
Re: How to paint under hood items!
Saturday, May 13, 2006 9:27 PM
yea same here............as for the coolant jug you need to sand it and use high temp paint.....and maybe it will last.....i tried w/ mine and it just flaked off after a couple months and then it runs and doesnt stick in some places



*************Yea i spell liek wrong get over it*****************
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Re: How to paint under hood items!
Monday, May 15, 2006 6:24 AM
Thanks, man...Ill run down and get a can of paint...that answered the question.






Silver Stripey makes your Day!
Re: How to paint under hood items!
Monday, May 15, 2006 7:58 AM
CF cover...problem solved



Re: How to paint under hood items!
Monday, May 15, 2006 8:24 AM
[quote=OzzieŽ]CF cover...problem solved

How much for one, and where to find them....interested!






Silver Stripey makes your Day!
Re: How to paint under hood items!
Monday, May 15, 2006 3:46 PM
Geez, prices seem a tad high for just "covers". You'd be better off just trying to find a paint technique that works, lol
Re: How to paint under hood items!
Monday, May 15, 2006 7:29 PM
On most plastic parts, you need a plastic adhesion promoter. This is simply a chemical bond link between the plastic and your paint. I am assuming you are using rattle can. Try this. Go to a wal-mart. In the automotive paint section there is a product called "BULLDOG PLASTIC ADHESION PROMOTER". Take your plastic part, your reserve tank, and scuff it up. Don't use a low grit sand paper. I would suggest 600 or 800 or a grey scotchbrite pad. You wanna just scratch or dull it so the paint has a mechanical "Tooth" to hold onto. Make sure you don't get overzelous and scuff it to the point you have plastic burrs everywhere. You just need it to have a dull finish. If your using the sandpaper and it gets to looking like deep cuts. Jump to a higher grit.... 800, 1000, 1500...etc. I would probably, since this is a coolant tank, put a strip of tape down one side... so you can see the levels still (you want it to remain functional.) So now you got a nice scuffed up tank. Take the adhesion promotor and apply a couple of light coats. It will get a sticky kinda look. Once the layers has had time to flash and cure, you can apply your primer to the tank. Make sure you apply enough so that you can "wet sand" the primer. Rattle can is very thin. It will take a couple of layers. Once again, don't put down big heavy coats.... it will run and you'll end up sanding down through the adhesion promoter. Light, powdery coats pay off. While your waiting for you primer coats to dry, get some 800 and/or 1000 grit wet/dry sand paper. Get a bucket with some room temp water and trifold the paper and place it in the bucket for at least 20 minutes. Add some dishwashing liquid, like dove to the water. The soap helps the paper slide and prevents the paper from loading so fast. Once the final coat of primer is dry. Take the bucket and wet the primer with some of the soapy water and lightly... I mean lightly scuff the surface again. Make sure you cover all the areas.... be careful on the edges or you'll sand through and have to start over. Once your done... wash it down good and dry it. A non-lint towel or even a automotive tack cloth is better.... you don't want any tidbits left on it or it'll show through your paint. No lay down your color in the same manner. Light at first for the first couple of coats then some semi wet ones. Be careful of runs in the paint. Once the paint has cured... according the the directions on the can. repeat the wet sanding procedure on the color coat. You might wanna try a much higher grit... like 1500. When done, wash clean and tack. Now you can lay your clear down. Do the same procedure... light for a couple... good coverage... then some semi wet coats... let it flash ( time it takes where it isn't runny or stringy). And you could polish it out but it will probably look pretty good at this point. You don't have to do the wet sanding but it does pay off. Be super careful pulling the tape off showing your level. Pull back toward you so the tape is cutting against the paint. A exacto knife could be run down the edges of the tape to help assure no stickin'. Try it on a old tank or similar piece first. I'm pretty sure it will work. The Bulldog is some pretty good stuff. Hope it helps.



The world is a beautiful place.... but I wouldn't want to paint it.
Re: How to paint under hood items!
Tuesday, May 16, 2006 5:22 AM
Thanks for that great right up on it....great job!








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