Control arms hold front wheels, allowing up and down movement. of the front suspension. The control arm is an important part of the front suspension. It connects the steering knuckle (the part that holds the front wheel) to the vehicle's frame or body, see the photo.
However, when grout is used in place of caulk, the grout can cause structural and aesthetic problems. 1  The grout will crack allowing moisture to penetrate. 2  Where the grout is sufficiently strong, movement in the walls, floor, or countertop can damage the tile.  Grout cannot hide corner cuts as well as caulk.
Often, installers use grout in place of caulk for these reasons: 1  The caulk may not exactly match the grout color. 2  Even when the caulk exactly matches the grout color when installed, it may not match six months later (caulk will age differently from the grout). 3  Caulk will need to be maintained more often than grout.