#23
Of course I'll need to sand this down and repaint, but will it happen again? The putty had a few weeks to cure before I painted it.

Can I deal it with dewaxed shellac? Will latex paint adhere to shellac?
Semper fi,
Brad

Reply

#24
It looks like construction lumber that had a higher moisture content, that is now shrinking relative to the putty.
Reply
#25
No, that piece is 3/4" paint grade ply. The rest of the face is poplar.
Semper fi,
Brad

Reply
#26
Still has to be shrinkage though, right?

The putty isn’t expanding, the wood is shrinking. Quite a bit.

I could be wrong.
Reply
#27
Oops.

It's poplar, not ply.

The putty is expanding, but because of the water in the paint, I assume. So I'm wondering if sealing with shellac will work.
Semper fi,
Brad

Reply
#28
So seeing as nobody else is responding, I'll just keep bumping.

What kind of putty did you use?

And how long after you painted did the problem exhibit itself?
Reply
#29
I forget the brand. Something I bought from HD. The next day after painting I noticed it.
Semper fi,
Brad

Reply

#30
I would have thought it happened like Phil said but it would have taken longer, so it must be from the filler expanding.  If that's the case you have two choices.  Change filler to one that is not water soluble after drying, or coat over it with shellac as you proposed.  Shellac sticks to most everything and most everything sticks to shellac, so I don't think you'll have any problems if that's what you choose to do.  

But before you do any of that, why not just wait a couple of days and see if it magically shrinks back flush again.  If it swelled from absorbing water from the paint it may shrink back down when it dries again.  

John
Reply
#31
It's been like that fit a few weeks now; I don't expect it to shrink back. I'll shellac it and move on. Thanks!
Semper fi,
Brad

Reply
#32
That looks more like a wood plug than putty on my end. Course sometimes my end can get distorted if my ozone depletion coptoviro system is malfunctioning......
Winkgrin
Steve

Missouri






 
The Revos apparently are designed to clamp railroad ties and pull together horrifically prepared joints
WaterlooMark 02/9/2020








Reply
Wood putty popping under latex paint


Forum Jump:


Users browsing this thread: 1 Guest(s)

Product Recommendations

Here are some supplies and tools we find essential in our everyday work around the shop. We may receive a commission from sales referred by our links; however, we have carefully selected these products for their usefulness and quality.