I now see seams in my drywall after i painted - what can i do? didn't see them when primer was on!?

I hung, taped, sanded, primered, and painted my drywall - it looked good and felt smooth when i had the primer on, but after I painted it you can see many of the seams and spots - can I go back over it with compound and sand it down, then primer again and repaint? Does the paint type make a difference?I now see seams in my drywall after i painted - what can i do? didn't see them when primer was on!?
You can fill them now you will just need to re-prime and paint them when you are done.





Yoda outI now see seams in my drywall after i painted - what can i do? didn't see them when primer was on!?
sorry to bring bad new but there is a solution. Re-sand the area. Get out your dry mud. Start with a six inch drywall knife blade and apply a thin coat of mud. Let dry several hours. Lightly sand. Take a eight inch knife and apply another thin coat of my. Let dry again. Take a twelve inch knife and apply another thin coat of mud and let dry and cure. Lightly sand between coats of mud. On the last coat when sanding lightly sand until all ridges disappear then repaint. This technique is called feathering out. Normally you would only apply the intital coat of drywall mud with a narrow blad followed by a second layer of mud with a wider blade. Since you have already painted over the surface you have a little extra work to do. As the very last step you can take a moist, not wet, sponge and clean up the edges if the sanding doesn't do it. Good luck!
Bummer. I would think that is what you have to do. I don't think the paint type makes much of a difference. If I were you, I'd call a sherwin-williams and ask their opinion. They are really knowledgable about how the paint makes a difference, etc. Good Luck.
Glossy paint will show more defects than flat. That is why most builders use dead flat paint on ceilings and walls. Primer is always flat not glossy so that is probably why you didn't notice the defects. Lighting makes a difference also. If you have sunlight coming from a different angle you may notice things that were not apparent under artificial light.





Yes you can go over it and sand again.
A lot of good, applicable advice in the above posts. the one thing lacking is how to check for this before painting.


get a very bright light, many use a used, 4', flourscent fixture and stand it one one end, leaning against the wall u r working one. as it shines across the surface of the wall, it will show low areas and u can mark them w/ a light pencil mark round them. Do not leave the light there while working or it may fall and break the bulbs (best done w/o the bulb cover, for the quality of light u need.


Many use halogen work lights that are on a stand or even a very powerful flashlight, though most of them will shine too much light in small area and not enough in others and it needs to be on a stand.


In other words, any stable, wide spread, very bright light will work.


I never call it a finished job, without this step.


It sounds like u've got the rest of it down pat. The paint does make a difference and the glossier the more it will show shallow areas. However, u want a bit of a gloss to make it more cleanable than flat. An eggshell finish is a great compromise. Gives a flat covering ability and yet is cleanable.


Sounds like an impressive do it yourself project, congrats and good luck
Paint will make a Little difference but not too much. You can fix the seams by using a wider drywall knife (trowel) and feathering it out. After you apply more compound make sure you sand it well before you paint.





Another way to get the seams to look better is to use some kind of texture after you complete your joints. Texture hides a world of hurt.