I patched the drywall and used a primer BUT
#1
02-27-08, 08:51 PM
I patched the drywall and used a primer BUT
Here it goes.. wish you can help me understand.
I patched a hole and sand it to level with the wall.
BTW.. the wall is white.
I got a primer from Home Depot Premium PLus
So, I primer the area where it is needed and outside of the patch. But when the primer dried up..the area I patched is whiter than the area that is not patched. I did sand the other side of the patch.
Why does the patched hole looks whiter than the other wall?
edit: only using 1 coat run of primer. and yes a cleaned the area fist.
sample:
__________________
| __________ |
| | patched | |
| | but whiter| |
| ------------ |
---------------------
I patched a hole and sand it to level with the wall.
BTW.. the wall is white.
I got a primer from Home Depot Premium PLus
So, I primer the area where it is needed and outside of the patch. But when the primer dried up..the area I patched is whiter than the area that is not patched. I did sand the other side of the patch.
Why does the patched hole looks whiter than the other wall?
edit: only using 1 coat run of primer. and yes a cleaned the area fist.
sample:
__________________
| __________ |
| | patched | |
| | but whiter| |
| ------------ |
---------------------
Last edited by Mr_Helpme; 02-27-08 at 09:00 PM. Reason: more info
#2
02-28-08, 05:06 AM
First off, the paints/primer available at the big box stores are rarely equal in quality to the coatings available at a paint store.
2nd, primer is formulated to suck in and seal the substrate. The area around the patch is aready sealed, so the primer won't suck in like it does over raw drywall/mud.
Generally 1 coat of primer is all that is needed and you can top coat with no issues but not being familiar with that primer [and to play it safe] it might be a good idea to apply 1 more coat of primer.
2nd, primer is formulated to suck in and seal the substrate. The area around the patch is aready sealed, so the primer won't suck in like it does over raw drywall/mud.
Generally 1 coat of primer is all that is needed and you can top coat with no issues but not being familiar with that primer [and to play it safe] it might be a good idea to apply 1 more coat of primer.
#3
02-28-08, 05:57 AM
Originally Posted by marksr
2nd, primer is formulated to suck in and seal the substrate. The area around the patch is aready sealed, so the primer won't suck in like it does over raw drywall/mud.
I may apply more coat of primer.
last question.. got any trick on priming or painting a corner? i.e. corner between ceiling and wall.
#4
02-28-08, 06:17 AM
After painting there shouldn't be a color difference between the previously painted area and the primed area. There can be a texture difference 
if the patch is ultra smooth and the other areas have a texture [even a roller stipple] -that might show.
There really isn't any "trick" to cutting in the angles. the main thing is to use a quality brush [a 2" or 2.5" purdy sash brush would be a good choice] and practice, practice, practice
I suppose using a straight edge [like a wide taping knife] might help you to cut a straight line - be sure to wipe clean often to avoid paint transfer.
if the patch is ultra smooth and the other areas have a texture [even a roller stipple] -that might show.There really isn't any "trick" to cutting in the angles. the main thing is to use a quality brush [a 2" or 2.5" purdy sash brush would be a good choice] and practice, practice, practice
I suppose using a straight edge [like a wide taping knife] might help you to cut a straight line - be sure to wipe clean often to avoid paint transfer.
#5
02-28-08, 06:32 AM
Originally Posted by marksr
After painting there shouldn't be a color difference between the previously painted area and the primed area. There can be a texture difference if the patch is ultra smooth and the other areas have a texture [even a roller stipple] -that might show.
if the patch is ultra smooth and the other areas have a texture [even a roller stipple] -that might show.
There really isn't any "trick" to cutting in the angles. the main thing is to use a quality brush [a 2" or 2.5" purdy sash brush would be a good choice] and practice, practice, practice
#6
02-28-08, 12:48 PM
Originally Posted by Mr_Helpme
Do you recommend to apply another coat of brown paint if the area patched still shows?
Originally Posted by Mr_Helpme
Yes. Right now i'm using a paint brush but i'm painting horizontal and the roller vertical. So, when you look at the top it shows the difference of stroke. 
