Put on your face mask and spray the entire piece with the self-etching primer. I'm thinking I can use etching primer then undercoat-in-a-can on top of that? A note about self-etching primer and aluminum. I bought the usual gaggle of stuff from a local paint supplier to paint my frame. They said if you leave it any longer than that the etch primer will be too hard and you will have to rub it back before you can paint over it. This helps remove sanding scratches and small surface defects. My question: If I apply a zinc phosphate coating on my bare metal (such as After Blast by Eastwood), can I still use a self-etching primer over top of it? If you do choose to use them I would next apply an epoxy primer as opposed to a self etch primer. Tonight I made my first attempt at spraying Self Etching primer (Nason 491-17) to my hood. I generally plan to be ready to pick up the car from the blaster the moment it is done and am ready to throw it into primer. For small parts or spot repairs I often use SEM self-etch primer. Dry time is about an hour.Jim, Hi I am messing around with a car I have as a daily driver ( a 81 caprice) its still a very nice car for its age, has rust starting. Etch Primer is a paint that is designed to physically bond itself to the substrate to which it is applied. The self-etching primer is usually gray or olive drab gray but the color is just there to show you where you’ve put it on and it is very thin and one thin coat is enough. Creative Commons Attribution-ShareAlike 2.5 License. At its core, primer is a type of paint. Hope this helps, Mark The epoxy primers do a good job at sealing the surface, It is the only primer body fillers can be applied over the top. You did make it clear to him that you were using self etching spray can primer? Find Dy-Mark 325g Etch Metal Primer at Bunnings Warehouse. Putting more of the primer won’t make it work better. I was hoping to get away from blasting the frame so I dont have to remove the entire steering/A-arm assemblies and rear axle assembly with 3 arms. Thanks Jim. Depending on the goal of your project you have a few options after the epoxy primer is sprayed. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. I have a 1965 Chevy Impala 2 dr HT--I have completly sandblasted the entire car--i have stripped her down to the shell on the frame. Any rust on metal parts must be removed first either by sanding, media blasting or brushing off with metal brushes. Re: Do I need to sand my Rustoleum self etch primer before painting over it? If you wait more than 12 hours you should, like he said scuff down with a Red scotch pad and reapply, then prime. This special primer will grip to the metal and prepare you for regular primer and paint. Eastwood Epoxy Primer has self etching properties that chemically bond the primer to the metal rather than just a mechanical bond achieved by normal paints. Putting more of the primer won’t make it work better. Once the self-etching primer is dry, spray two to three coats of the high-build primer over it, always allowing each coat to dry before applying another one. Do not use near open flame. fingerprints. What is recommended to prep the frame for priming and painting. For instance steel screws in aluminum or on welds. Allow the final coat of Self Etching Primer to dry for a minimum of 3-4 hours before dry sanding, or 15 minutes before wet sanding with #400 grit sandpaper. Especially bare metal that has been exposed to the elements for more than a day or so. Is the self etching primer something I can spray on to protect it from rust and leave it until I’m finally ready down the road to apply the high build primer? He explains that it is imperative the doors on a classic car are lined up before installing the fenders because that’s what the fenders are going to fit. Once applied and dried (couple of hours) Use a 3m Scotch Brite pad to knock down any nibs and then shoot the Bare metal primer over the entire Prepped(Acetone wipe down) surface. Putting more of the primer won’t make it work better. If your car is going to be outside during the restoration process you may need to re-coat some of your primed areas. We would like to offer you a special promotion for your first-year membership. into google because i had seen it being sold by a couple of on-line retailers and wanted to know more about it - this really helped - thank you! Let’s start at the beginning. Etch Primer can be tricky. I have a project where is want primer and paint inside and out on some parts I'm restoring or do you know if there is something I can use to spray paint into hollow areas of parts? Self-etching primer is composed of an acid and zinc. Painting over rusted metal is not recommended. I just went in to my local paint shop to buy some high build primer to put on the self etching primer I used in my engine compartment. sparrowhawk@ihug.co.nz, Something which can cause problems is salt, Even a finger print can contain enough salt to cause tiny blisters under the film. Typically the next step is apply a primer surfacer, 2-3 coats then block sand with 320-grit. Regular primer can be an adhesion-promotin… Find Metalshield 300g Etch Primer Spray Paint Light Grey at Bunnings Warehouse. Without using an undercoat, the quality of your paint job suffers. Just make sure you shoot the first coat of epoxy with NO reducer, just 1:1 with activator. My email address is ddesoto103@aol.com Thank You. .DESCRIPTION AND USES. Self-etching primer is ideal for painting metal and creates the foundation needed to bond with the paint. Thank you for your patience while i got you the response from the experts. And the undercarriage parts are rusty too? Unless you only have a few minor issues to fix, it’s challenging for us do-it-yourselfers to carve out enough time to strip the old paint to bare metal, do the repairs, apply bondo and then spray a layer of self-etching primer before surface rust begins to form on the body. Undercoat in a can may not be quite the overkill that you imagine. This ensures good adhesion and rust prevention. For this I recommend a direct to rust paint I've tried POR15 and Chassis Saver and Hammerite. So it’s important that you get all of the scaly rust off. We’d love to have you be a part of our community. It’s also important to remember that no primer is meant to be a top coat and they lack any real UV resistance. Mark, I’ve got some bare metal panels that I’ve been working on but won’t actually get to base coat painting for quite some time (probably months or up to a year). Self-etching primer will not get rid of the rust; it will only paint over it. In this video, learn how to customize your own classic car! Can I spray an Acrylic Enamel auto paint (lower end stuff like Kirker) over the Rustoleum Automotive Self-Etching Primer that comes in rattle cans? Will self etching primer work correctly over body filler? Classic Car Restoration Club Video Membership. When doing major or even minor work on older cars your going to run into rust. Is it better to apply body filler before or after self etching primer? This will stop corrosion expansion until the area once again gets exposed to moisture and air. Aluminum is especially difficult to paint. Self-etching primer is especially effective on diecast, which ordinary paints and primers sometimes have trouble sticking to. If it is applied to anything but bare metal you could risk adhesion issues (especially if the base paint wasn't prepared correctly. But I would use either acid etch primer or a good epoxy primer if you plan to prime and paint parts and avoid a phosphate wash completely. For large area coverage I generally use PPG DP 90 epoxy primer after I condition the metal using a 3M rust & paint removing disk and wash the surface with PPG Acri-Clean. Primer 1 FT302 Reducer PHYSICAL DATA FP301 at 1 to 1 with FT302 is 5.83 pounds per gallon. Self-etching primers have to have another primer ove… A sheet metal shrinker/stretcher is perfect for any type of metal fabrication you need for your classic car, and it keeps the metal completely flat (without crimps). Hi Jim,Thanks for the great info. Will I need an etching primer for this? Can you put body filler over self etching primer? Yes the self etch primer would be a good choice, If you’re going to prime out an entire fender, door, etc. I have another project of replacing the rockers on a car and I need to get paint on the inside of the panels to prevent rust.Thanks again for the info,Arden. Custom Shop Premium Self Etching Acid Etch Primer, 1 Quart - Ready to Spray Paint, Excellent Adhesion to Bare Metal, Steel, Aluminum, Fiberglass - Use on Automotive Car … However I've never heard of a clear and I've picked the brains of a couple of people I know and none of them has heard of a clear self etching primer.Jim, ddesoto10365 impala hardtop nice! It 's because of rust, correct opposed to a self etch primer n't prepared correctly of. This allows for a nice flow rate that makes the sanding really smooth seamless... And primers sometimes have trouble sticking to had no need for a topcoat and Chassis Saver and.! Works and then shows you an example of a smooth and seamless finish for galvanized the chemistry is type! 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