Instructions / Assembly

Use these steps to ensure that Fusion Pro cures properly when grouting shower floors and walls.
Before Grouting
If used, mortar beds under tile must cure
a minimum of seven (7) days and have
a dry surface before tiling.
The tile assembly must be dry for
24 hours before grouting.
Before grouting walls, cover the floor
with towels to prevent wash water and
grout from running down the walls and
wetting the floor.
Ensure wash water bucket is outside of
shower or on top of towels.
Curing
Once grouting of walls is completed,
remove the towels and dry off the tile
and grout joints.
After grouting, allow the entire tile
assembly to cure for seven (7) days
before running water in the shower.
Fusion Pro
®
Single Component
®
Grout
Shower Installation Tips
• Spread grout for 1-4 minutes at a time.
• For more working time and easier clean up,
pre-seal natural stone, porous or rough tile with
Aqua Mix
®
Grout Release.
• Fusion Pro cures by evaporation. Ensure mortar bed/setting
material has dried, concrete does not have a high moisture
emission rate and work area has proper ventilation.
• Tile and grout joints must be clean and dry.
• Do not add water to the grout.
• Do not mix the grout.
Humidity
High humidity due to weather or
jobsite conditions can slow down the
evaporation and cure rate of Fusion Pro.
• Open shower doors
• Use fans to help air circulation
• Heat room if it is cold
WEAR IMPERVIOUS GLOVES, SUCH AS NITRILE, AND EYE PROTECTION.
Tips
Custom Building Products
800-272-8786
custombuildingproducts.com
10/17R
See "Fusion Pro Installation Guide" for detailed application instructions.
Instructional videos and other resources, such as the Technical Data Sheet, are available
at www.custombuildingproducts.com/fpinstallation. For additional questions or help, or
call CUSTOM Technical Services at 800-282-8786.
©2017 Custom Building Products. All rights reserved. The CUSTOM
®
logo and select product logos are registered
trademarks of Custom Building Products, Inc. CUSTOM may make product modifications at any time without
notice. Visit custombuildingproducts.com for updated technical data sheets and SDS information.
• Do not use Fusion Pro with irregularly shaped or spaced tile
or stone, such as pebble style mosaic tile, where joint width
or depth exceeds 1/2" in any direction. In this instance it is
best to use CUSTOM's Prism
®
Ultimate Performance Grout.
• Due to the varied tile finishes in the market today, always
perform a test with Fusion Pro on a sample of tile in ambient
conditions similar to those you will be grouting in, before
beginning the project.
• Fusion Pro is a sanded grout. Perform a small test on soft or
highly polished surfaces to ensure it doesn't scratch the tile.
• Do not use where tile will be submerged.