Difference between MDF, Plaster and Styrofoam materials and Will joints or corners crack after installation?
That mostly depends on 2 things: 1. In what temperature and humidity trim stored 2. Craftsmanship of crown moulding installer. MDF or Wood or Hardwood are sensetive to temerature and humidity arround it. Don’t sore your wood in a garage, and never outdoor -it has to be insulated heated warm place. If you never have -10 degreze in you house your corners have almoste no chance to crack That’s why our materials are always stored in a minimum +12 degreeze celcium and well ventilated dry place Professional installer – who make things done right. Proper skills and technics are required. All the joints must be reinforced on a back, all corners sould be glued together, walls are not perfet so it’s essential to use shims. Properly cut and installed crown molding will much less likely get a paint crack in the corner or joint. However corners can be fixed in seconds with a tiny line of caulk silicon. MDF material comes in 14 or 16 feet length unlike 8 feet plaster. Styrofoam we wouldn’t recommend
