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.
Often, installers use grout in place of caulk for these reasons: 1  The caulk may not exactly match the grout color.  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).
Typically, a sanded grout is used on mosaic tiles, but some marble mosaics are mounted in such a way that the grout joint is almost nonexistent. In general, use a sanded grout when the joint is wider than 1/6 of an inch. The tile finish determines how easy it is to wash the grout off and buff the grout haze.