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).
The grout process is similar but immediately after working a smallish area, say 4 x 4, a barely moist, appropriate sponge should be used in the initial swipe/clean up. As the grout drys, which will be fairly quick, a wetter sponge can be used. Grout too should be allowed 24 hours to be safe. Steven Wolf. Obviously there are Mastiks like some used for verticle installations that will dry/set/cure faster, but even a decent bathroom wall tile job should be no less than a 2 day process.