I have posted a number of items recently dealing with paints and the right paint finish.
Finally, the most important consideration when applying paint is to prepare each surface correctly. Most surfaces are suitable to be painted with any paint products, however there will always be some preparation to do first. Previously painted surfaces will need to be thoroughly clean and gloss surfaces will need to be sanded to ensure the paint adheres to the surface. Cement rendered surfaces need to cure for at least 4-6 weeks before applying paint. Metal surfaces can be painted but should be free of rust or be treated with a specially designed rust product. There are different priming and sealing products for varying surfaces and these are important to consider in the preparation stages. It is always advisable to seek technical assistance from each individual paint manufacturer to ensure that you are preparing each surface correctly.
If you’re thinking of a little DIY, check out my earlier posts.