Monday 19 September 2011

How to Grout

1 comment:

  1. Tips On Grouting Tile
    Mixing Grout:
    Do not mix by hand as this leads to
    very inconsistant color and strength.
    Use a five gallon plastic bucket, drill
    motor with right angle handle, slurry
    mixer bit, clean water
    Add water and start the mixer to
    agitate water
    Add dry grout gradually to mixing
    water until correct mix wetness
    Good rule of thumb - the mix should
    be wet enough to flow, but not soupy.
    You should be able to make a groove
    across the grout surface with your
    finger and the grout SLOWLY flows back
    to fill in the groove.
    Applying Into Grout Joints:
    Prior to mixing grout, coat tile faces
    with Aldon "Grout Easy" and let dry. If
    you see that a coating exists, that is
    enough "Grout Easy".
    Dump some grout on a comfortably
    small work area. 3' x 3' is a good start .
    Using a soft rubber or sponge bottom
    float tilted up a bit, push grout around
    to fill the joints.
    Come at the joints at a 45 degree angle
    from two directions with the float
    pushing grout to pack into the joints.
    Use a large, damp masonry or tile
    setting sponge to remove grout from
    tile face and even out grout joints to
    the desired depth. Keep cleaning the
    sponge.
    Final cleanup with more clean water
    and the sponge. Grout should be dry
    enough within a few minutes to not be
    dragged out and onto the tile face. This
    step also removes the remaining
    "Grout Easy" and any final grout scum.
    What Causes Color Problems With
    Grout?
    Organic pigments (i.e . carbon black)
    will fade from ultra violet. Iron oxide
    pigments are stable.
    Too much water can create shrinkage
    cracks, low density, less strength,
    efflorescence, extended drying time.
    The last two can create the appearance
    of lighter color (washed out looking).
    Too much water can leave a slick finish
    which reflects light differently than the
    normal finish. This can sometimes
    happen when grout guns are used and
    the mix is made wetter to pump
    through the gun .
    Too much wet clean up can wash out
    pigment and create efflorescence.
    Aldon "Grout Easy" prevents this
    problem.
    Grout Easy
    Cleaning up too soon can pull grout
    out. Delayed cleanup can cause lighter
    colors.
    A smoother finish looks lighter than a
    rougher finish due to light reflection. A
    sponge finishes smoother, a towel
    finishes rougher.
    Overly moist curing conditions can
    create lighter colors.
    Speed of water leaving (evaporation)
    can affect color. Breathable kraft paper
    covering new grout seems to work best
    to slow down and control drying
    without creating too much moisture.
    The speed that the tile absorbs water
    from the grout can affect the resulting
    color.
    A glazed tile with more glaze on two
    opposing ends than on the other two
    opposing ends (from the manufacturing
    process) can absorb water differently
    and cause different color effects. The
    same is true of a cut edge.
    Aldon "Same Day Sealer" can be used
    while grout is still damp from installing.
    This sealer, in addition to providing
    immediate protection to new grout, will
    act like a curing compound and tend to
    slow down water evaporation -
    resulting in stronger grout.
    Same Day Sealer

    ReplyDelete