Rusted Metals: It's important to note that Ospho is a rust inhibitor coating and not paint. Before applying, use a wire brush or wire wheel to remove loose paint, rust scales, dirt, oil, and anything else accumulated on the surface.
Can I use ospho to neutralize paint on metal?
When you paint the metal it has been recommended by a highly reputable epoxy mfgr that you re-wet the metal with Ospho and then wipe it clean, sand with 80 grit and paint or seal it. If you do a search on "Neutralizing Ospho" you will find it right away.
How do you remove ospho from metal?
If standard metal, you must neutralize the Ospho with Baking Soda or ammonia. Spray all the areas with the neutralizer, wait 15 minutes, wash down with clean water then blow dry.
What is ospho etching?
What is Ospho? Ospho is two-part phosphoric acid etching process that restores vehicles quickly and easily. It has high alkaline pH levels which clean away dirt, corrosion, rust or paint without harming metal surfaces or factory finishes underneath.
Can I spray ospho on glass?
Yes, however, the product will strip paint away from the glass when sprayed too heavily or in thick layers so be sure to spray Ospho onto your glass surfaces lightly!
Can I paint directly over OSPHO?
Before applying, use a wire brush or wire wheel to remove loose paint, rust scales, dirt, oil, and anything else accumulated on the surface. After doing this, apply a coat of Ospho and let it dry (overnight). Once the surface is dry, you can paint over it.
How long after applying Rust Converter can you paint?
Overcoating requires a minimum of 6 hours before applying a second coat of Rust Converter. This is to allow for curing. If applying an oil-based top coat, allow a minimum of 48 hours to allow for full cure before applying paint.
How long do you leave Ospho on?
CLEANING AND ETCHING METAL - OSPHO can be used to clean and etch Ferrous and Non-Ferrous metals by simply applying a thin coat. Let stand for approximately 30 minutes or until metal is etsched, then flush off with water, avoiding damage to adjacent areas.
Do you need to prime after rust converter?
Though it is not compulsory, it's a good idea to use 2 coats of good quality metal primer / paint to cover the surface and prevent any further rust from developing on the surface.
How long should I keep a primer wet?
Wet the area and keep it wet for 30 minutes, then wash it off with water. If you are using a good primer you don't need an etch prior, I only use it if the surface has rust or if I'm going to paint with POR
How to clean acid puddles?
Then scuff with 3M pad, blow it off, clean with degreaser and shoot. If you hit it with 80 grit after it dries, you're taking off the coating the acid leaves.
Can you use phosphoric acid as a stripper?
Phosphoric Acid is not meant as a stripper, and causes a zinc surface reaction. Eastwood encapsolator or a good epoxy primer will adher very well. For smoother surface, wet sand and apply second coat. Second coats are always a good thing.#N#Worried old man#N#http://i142.photobucket.com/albums/r107/pearlhr41/68 Chevelle Malibu/Picture022.jpg
Can you leave bars unpainted?
bars are easy to leave un painted on the ends...
Do you need primer for Ospho?
Ospho says you do not need a primer. The VHT paint also says no primer needed.
How to neutralize ospho?
If standard metal, you must neutralize the Ospho with Baking Soda or ammonia. Spray all the areas with the neutralizer, wait 15 minutes, wash down with clean water then blow dry. Now get a good zinc chromate primer for your first coat, then follow up with finish coats of epoxy paint. James Madison.
How long does it take for an Ospho to turn black?
THE Ospho [affil. link to info/product on Amazon] SHOULD GO ON A CREAMY WHITE. A CHEMICAL REACTION OCCURS TURNING THE OSPHO BLACK IN COLOR. THIS SHOULD TAKE BETWEEN 20-60 MINUTES. DEPENDING ON TEMPERATURE AND HUMIDITY. RINSE WITH FRESH WATER. REAPPLY AS NECESSARY WAIT FOR THE SURFACE TO DRY THEN APPLY PRIMER AND OR PAINT.
Can you use latex primer on galvanized steel?
A. Hi Richard. Although it is true that galvanizing is not compatible with some oil-based paints, which might tempt you to use latex, I don't think you need or should use a latex primer before cold galvanizing compound. As far as I can see, it's intended to be applied directly to worn galvanized areas as well as bare steel. Unless the instructions say otherwise, and I don't think they will, I'd apply the cold galvanizing directly to the Ospho and to any clean areas whether galvanized or bare.
Can you use cold galvanizing paint on galvanized metal?
You might try "Cold Galvanizing" which is a spray on galvanizing paint. It does have a duller appearance. It can be purchased just about anywhere that cans of spray paint are available. Galvanized metal can be aged, or etched, by wiping with vinegar which is a mild acid. I would give the Cold Galv thirty days to cure first. I've not tried this on Cold Galv but have on galvanized metal many times.
How long does Rust-O-Leum paint cure?
Most paints, even epoxies, have a 30 day full cure time. You can scratch off most coatings even after a 4-5 day time frame, after 30 days you should not be able too. Dan Burnett.
Is Rust Converter the same as Ospho?
A. Hi Jennifer. Rust converter and Ospho are pretty much the same thing, so I say use just one or the other.
Is ospho paint safe?
For those of you who are not familiar with it, OSPHO is a balanced formula of Phosphoric Acid, Dichromates, Wetting Agents, and Extenders. OSPHO is environmentally safe and non-flammable. OSPHO seals out moisture and prevents future rust from forming. Paint can be applied directly over the dried ospho, but CCGC is not paint. Want to spray on Crown Cold Galvanizing Coating, which is 93% zinc by weight. has anyone done this before?
Can PPG be used over OSPHO?
I've used PPG DP series epoxy over OSPHO treated panels with good results; the PPG spec sheets for the DP epoxy say there is better adhesion when applied over a conversion coating, which is what I believe OSPHO is.
Does Dupont use epoxy primer?
dupont makes a metal conditioner to go under there primers, but I use 250s epoxy primer under ospho all the time. But you may want to check because like was said before not all primers are created equal.
What does phosphoric acid do to rust?
The phosphoric acid converts rust (ferric oxide) to inert ferric phospate, which normally ends up looking black or blue. No problem with sanding it back as it has already done its job by the time it is dry. Most manufacturers of similar rust treatments recommend cleaning up the area after use. Painting should be no problem.
Can you brush off paint residue after it dries?
Once it dries remove/brush off the residue. I'm used to after brushing blowing any leftover dust off with comp air then once clean prime and paint. You'll be fine.
Can you paint over rust?
Ospho is a rust treatment. It turns rust into the black something or other that is stable and you are able to paint over it. If you went through the process of going down of bare metal then you are fine. I ususualy brush on the Ospho let it sit and dry. Wire brush off any flakes and paint right over it.
How to neutralize Ospho?
To neutralize the Ospho MUST be wet, so if dry, re-wet with itself and let set one or two minutes and with a clean rag and water, wipe off like washing the car and then dry. Next, then da car with 80 grit, clean with 700-1 wax and grease remover, let set an hour and coat with an epoxy. Notes of interest (maybe)
What acid cleaners does SPI recommend?
The ONLY acid cleaners SPI recommends is Opsho, PPG and DuPont metal preps as long as their instructions are followed to a tee. Use any other system you want, just do us a favor and use no SPI over them. There can be NO shortcuts for good results. Ospho, is a great product for automotive if used right, we give scare warnings because we want people ...
Where is reinforcement on a rail?
Normally there is a reinforcement that covers the whole area. As you can see it is tacked to the side and bottom of the rail. Water in between what caused the rail to rot, but luckily it's only the area you see on the side. The bottom is super solid.
Can you leave ospho on a panel?
When the intention is to leave ospho on the panel for protection, it still has to be wiped off with a dry rag, leaving only a thin film. This would be in the case of protecting the bare metal during the body working process, and when ready for paint then it should be rewet with a scotch pad and rinsed off completely.
Is Ospho good for cars?
Ospho, is a great product for automotiv e if used right, we give scare warnings because we want people to call so we can make sure they know how to neutralize it, so no problems will arise. Use as needed and apply as many times as needed to get the spot clean , let dry and leave for months if you want, don’t matter.
Can you sandblast a blind rail?
While the bits are off, you can address the inaccessible areas. Careful with sandblasting as many times you can't get all the sand out of blind channels, it gets wet and you have accelerated rust there. Personally, in blind areas where there is no other practical choice I would use silver MCU.