Installation Info
PREPARATION: HANGING DRYWALL
When installing drywall for 90˚ corners, hang drywall as shown. Make sure drywall panels are hung set back at the corner so that one panel does not protrude past the other panel.
INSTALLATION
For best installation results follow these steps:
Step 1
Saturate the adhesive side of the HYDROTRIM corner completely with clean, plain, tap water using a pump sprayer or spray bottle.
Important: DO NOT use a sponge to apply water to the adhesive of the HYDROTRIM.
Make sure the entire adhesive surface of the HYDROTRIM corner is completely wet.
Step 2
After applying the water, allow 15-60 seconds adhesive activation time before installing the HYDROTRIM corner. Adhesive should be tacky to touch. Activation time will vary depending upon room temperature, humidity and temperature of water in your pump sprayer. Warmer temperatures will require shorter activation time and colder temperatures will require longer activation time.
CAUTION: Do not soak HYDROTRIM corners.
IMPORTANT: Saturate the ENTIRE adhesive surface of the HYDROTRIM corner with CLEAN, PLAIN, TAP WATER using a pump sprayer or spray bottle, allow 15 - 60 seconds adhesive activation time before installing corner.
IMPORTANT: do not use a sponge to apply water to the adhesive of the HYDROTRIM!
Step 3
Place the wetted, adhesive side of the HYDROTRIM corner on the wall corner, aligning it tightly to the ceiling with the apex of the HYDROTRIM squared with the center of the corner. Make sure it is straight.
Tip: Snap chalk lines to ensure straight corners on bulkheads and long runs.
Step 4
Firmly press the HYDROTRIM corner with a roller, making sure the HYDROTRIM flanges fully contact and bond to the drywall surface. For best results, use the HYDROTRIM Outside 90 Roller.
REPOSITIONING: The HYDROTRIM corner may be removed, re-wetted and repositioned if adhesive has not set-up.
IMPORTANT: Once adhesive has set-up, the HYDROTRIM corner cannot be repositioned and will be permanently bonded to the drywall.
APPLYING & FINISHING
The HYDROTRIM corner can be mudded immediately after application using All-Purpose joint compound. If boxing, wait until adhesive has set-up.
Using an 8”- 10” taping knife, apply all-Purpose joint compound over the HYDROTRIM corner, filling the holes. Let dry.
Using a 10”- 12” finishing knife, skim over the HYDROTRIM corner once more with All-Purpose joint compound. Let dry. Sand and paint.
INSTALLATION TIPS
1. If the corner flange floats or lifts due to poor hanging or inadequate water coverage, staple the flange to ensure it will lay completely flush against the drywall.
2. Snap chalk lines to ensure straight corners on bulkheads and long runs.
3. Corners can be cut to length using scissors, metal snips or a chop saw.
4. Use a chop saw to cut multiple pieces of HYDROTRIM corners in a bundle to the same length at one time.