Primer is an undercoating substance in the painting to smooth out uneven surfaces so that the paint looks and wears better. It works very well to eliminate stains and to cover wood imperfections. However, it depends on the type of project and the types of surfaces. You would not probably need a paint primer if the new paint you used is the same type of paint and color as the old existing paint, provided an even, no dirt surface.
So, you might need to use paint primers in these kinds of situations:
- Cracking surface or alligatoring
- Paint peeling
- A Result from aging of rusty nails stains
- A Result from bleeding of tannin stains caused by some woods
- Stained surfaces caused by mildew
- On Rough surfaces so the primer will make the surface evenly smoother
Whether you need oil-based primer or latex, it depends on how frequent is the area being used or in touch. For high traffic areas e.g. kitchens, bathrooms, utility rooms, doors, windows and trim the latex-based primer may work the best. The advantages of the latex primer over the water-based are its odor free, quick drying and easy to clean up. Some expert said it is the best undercoat for drywall, plaster and concrete. However, water-based primers are fine for areas that get less use or contact, such as crown moldings.
Whatever your need, do not forget to read the label can and follow the manufacturer recommendations which paint primer works the best for which surfaces.
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