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).
Grout fills seams between tiles. Most grout you will be using is called sanded, meaning thatâ grout contains sand. Sand is used by manufacturers because it is literally dirt-cheap and because it is a good material for what is a simple job: filling in a hole.