How to Install Drywall Corners: ULTRATRIM 5/8" L Trim
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TIPS
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| INSTALLATION INSTRUCTIONS | |
| 1. Using a 4” – 6” taping knife, apply All-Purpose joint compound to drywall slightly beyond where the ULTRATRIM 5/8" L Trim will be. | ![]() |
| 2. Place ULTRATRIM L Trim on wall and press into position. | ![]() |
| 3. Embed trim by using a NO-COAT ULTRATOOL ONE-SIDED Roller or by running the knife over it with even pressure at a 45° angle. | ![]() |
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4. Using the same 4" – 6" knife, skim over the 5/8" L Trim with All-Purpose joint compound. Let dry.
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5. Using a 6” – 8” finishing knife, skim over the 5/8" L Trim once more with All-Purpose joint compound. Let dry. Sand and paint. |
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The NO-COAT Double Barrel Hopper TIP: Before filling the NO-COAT Double Barrel Hopper with All-Purpose joint compound, run a short piece of corner through the Hopper gates. This allows you to make the most accurate tolerance adjustment. To avoid run off, compound should have the same consistency as boxing mud. |
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ULTRATOOL ONE-SIDED Roller |
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| BOX IT Set your 7” or 10” box to #3 and box up to 30 feet of corners in minutes. NO-COAT corner trim uses 30 - 50% less mud than corner bead, so you won’t run out of joint compound before you’re done boxing your corner. |
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