no
Rusty metal primer and paint.
Always prime first and make sure to key (sand) all surfaces, whether you are priming or not that is VERY important.The rule is: You cannot use water base paints over oil base paint. You may if you prime first. If your matte and your gloss are both water based, you may use the matte. When in doubt, please prime first.AnswerBeing in the painting business for nearly 10 years, the key factor to painting waterbase paint (in any sheen) over oil base paint is to sand, sand, and sand again. A regular primer will not add any adhesion to the surface - you need a high adhesion primer that is either oil or shellac base first, or a waterbase that is made specifically to grip to oil. Of course, I would skip this step entirely simply by sanding thoroughly - and using a waterbase topcoat that is good quality. Ideally you should use a paint that is made to stick to oil, such as General Paint's HP2000 or Dulux Diamond. But priming with a regular waterbase primer will not help to solve this problem and will be a waste of your time and money.
Yes, you can.
The main difference between matte gloss and clear gloss is the amount of shine that each one has. A matte gloss will give paint a subdued, toned-down look, while a clear gloss will be shinier and more polished.
Clear primer.
You didn't mention whether you were using latex or oil based primer and paint, but generally the point of using primer is so that you can paint over it with any form of wall paint. Just read the label on your primer can to make sure it is compatible. On the other hand, if you wanted to paint the primer over the satin gloss, you need to sand the surface lightly to remove the sheen of the paint and provide a suitable surface for the primer to adhere properly.
Matte paint doesn't have the shine that gloss and metallic paints have. Matte black is simply black that doesn't have reflective qualities.
Full gloss paint has a shiny, reflective finish that is easy to clean but may highlight surface imperfections. Matte paint has a flat, non-reflective finish that can help to hide imperfections but is less durable and harder to clean. The choice between the two typically depends on the desired aesthetic and the practicality of the space.
If your gloss white is good quality, then a single coat should cover a grey primer.
It will not stick very well unless you use a primer in between.
The first step in refinishing a metal fire escape is to clean it. After it is cleaned, you will need to use an anti-rust metal primer. Then you can paint it, using two coats of exterior oil based, high gloss paint.
It would be hard to measure the difference, but Gloss would be a smoother finish so it would have slightly less drag.