Ken Cobbing
02-17-2021, 1:25 PM
Hi all,
I'm finishing up an overdue medicine cabinet project, overthinking every step of the way, I'm sure. The cabinets and doors are finished and all I've left to do is attach the mirrors to the wood doors.
The design is modern with no mirror frame, and the mirror/door overhangs the cabinet on all sides. The mirror sits on top of the door and the profile of both is identical with large corner radii. I've attached a photo of the doors I've made, as well as the style that SWMBO asked me to use as inspiration. In short, the mirror needs to be glued directly to the front of the wood door.
The mirror mastic manufacturer (CR Laurence) states that all porous surfaces (including wood) should be primed before using the mastic. They sell an acrylic primer in gallon cans for over $100.
I'd like to use an alternate primer since I don't need a gallon and the price is a bit ridiculous. What primer would you suggest? I'm a bit uncertain about how exactly the primer helps adhesion between wood and the mirror; is the purpose simply to seal the porous wood so that the mastic does not have moisture pulled out of it?
My first instinct is to use Zinsser BIN shellac primer since this would do a great job of sealing the porous wood by soaking into the wood fibers. On the other hand, the manufacturer uses an acrylic primer, so perhaps Bullseye 1-2-3 would be a better choice?
Any thoughts on the necessity of primer and/or the best choice for the intended purpose?
Thanks for reading :)
I'm finishing up an overdue medicine cabinet project, overthinking every step of the way, I'm sure. The cabinets and doors are finished and all I've left to do is attach the mirrors to the wood doors.
The design is modern with no mirror frame, and the mirror/door overhangs the cabinet on all sides. The mirror sits on top of the door and the profile of both is identical with large corner radii. I've attached a photo of the doors I've made, as well as the style that SWMBO asked me to use as inspiration. In short, the mirror needs to be glued directly to the front of the wood door.
The mirror mastic manufacturer (CR Laurence) states that all porous surfaces (including wood) should be primed before using the mastic. They sell an acrylic primer in gallon cans for over $100.
I'd like to use an alternate primer since I don't need a gallon and the price is a bit ridiculous. What primer would you suggest? I'm a bit uncertain about how exactly the primer helps adhesion between wood and the mirror; is the purpose simply to seal the porous wood so that the mastic does not have moisture pulled out of it?
My first instinct is to use Zinsser BIN shellac primer since this would do a great job of sealing the porous wood by soaking into the wood fibers. On the other hand, the manufacturer uses an acrylic primer, so perhaps Bullseye 1-2-3 would be a better choice?
Any thoughts on the necessity of primer and/or the best choice for the intended purpose?
Thanks for reading :)