Unfortunately just gluing these is always going to respond with an issue like this as the walls and wood are always expanding and contracting slightly with heat/cold and moisture in the house and atmosphere. These types of trim pieces require some pin nailing to remain secure. As someone else mentioned above, once nailed, you can use a wood putty and light sanding, and thin layer of paint and you’ll never see the holes.
CPApothecary t1_iy4e3b0 wrote
Reply to How to fix baseboard that partially pulled away? by rogerg93
Unfortunately just gluing these is always going to respond with an issue like this as the walls and wood are always expanding and contracting slightly with heat/cold and moisture in the house and atmosphere. These types of trim pieces require some pin nailing to remain secure. As someone else mentioned above, once nailed, you can use a wood putty and light sanding, and thin layer of paint and you’ll never see the holes.