Installation Instructions
Semi-Permanent  Removable Threshold
Installation Instructions
Gelcoat & Solid Surface Bathware
PRODUCT MATERIAL AND STRUCTURE
Non-porous ABS cap mounted to a super strong 
PVC substrate that will match both gelcoat and acrylic 
bathware. 
Thank you for purchasing the Semi-Permanent Removable 
Threshold. For best results, please read and follow all 
directions carefully.
CUSTOMIZING THE  SEMI-PERMANENT THRESHOLD
1. Place the semi-permanent threshold into shower to test 
t. Although the semi-permanent threshold is pre-cut at the 
manufacturer, modications may be necessary for a custom 
t. (FIG.A) 
2. Mark area that needs adjustment with a pencil. (FIG. B) 
A small piece of cardboard can be used to trace the radius 
of the area and can then be used as a template or guide 
to modify the corners of the semi-permanent threshold 
to ensure a good t. (FIGS. C-D) Grinding or sanding the 
corners will assure a custom t and installation. (FIG. E)
3. After making the necessary modications, place the 
threshold back into the 
shower to ensure all 
modications are correct 
and dry tting the threshold 
is accurate.
4. You are now ready to 
install the threshold into the 
shower.
INSTALLATION OF 
SEMI-PERMANENT 
THRESHOLD
1. Using a Mildew 
Resistant bonding silicone 
(white), place a bead 
of caulking around the 
underside parameters 
of the threshold.(FIG. F) 
Position threshold into 
place. (FIG. G) Remove 
excess caulking and 
smooth with wet nger 
or caulking pallet.
2. Apply a thin bead 
of caulking around the 
top side of the nished 
threshold to seal 
between the shower and 
threshold. (FIG. H)  The 
silicone used in Step 1 is 
Tools you might need for proper installation
• Pencil
• Grinder or Sander
• Mildew Resistant Bonding Silicone (white)
• Caulk Gun and White Caulk
• Tape Measure
• Two (2) 5”x 5” Cardboard Samples
• Removable Masking Tape
Available only in white
FIG.A
FIG.B
FIG.C
FIG.D
FIG.E
Threshold Part Numbers
• 1THR60
• 1THR48
• 1THR36










