First, apply a strip of self-adhesive fiberglass wallboard tape across the entire length of the crack. For larger cracks, you can use a joint compound. Let the spackle dry for the amount of time specified by the manufacturer. Apply small amounts with a 2” putty knife until the crack is covered. For the smallest cracks, you can use spackle. You can also use spackle and a joint compound to patch cracks. The room must stay at this temperature during plastering and until the plaster has completely set. Keep the room at this temperature at least 24 hours before plastering to ensure the walls are completely dry. The best temperature for plastering is between 55 degrees and 70 degrees. Helpful TipsĮxcess moisture in the wall or room can affect the plastering, so make sure to fix any leaks or causes of moisture several weeks before plastering. Wear a sanding respirator to prevent inhalation while breaking dried plaster or when mixing. When plastering, wear safety goggles, a long sleeve shirt and cotton work gloves for eye and skin protection. Crack repairs usually need only one layer of plaster. Apply a layer of plaster to the crack with a 4” wallboard knife, making sure the layer is even with the rest of the wall. Pour the plaster from the bucket into a mud pan. Follow the manufacturer’s instructions to mix dry plaster with water in a large bucket. Dampen the area with a spray bottle and water. Use a cloth or rag to wipe away dust and debris. Smooth and remove loose plaster pieces and any jagged edges on the surface around the crack with a putty knife. Helpful TipĪ shop vacuum is a great tool for cleaning up sanding dust. Close off the room using plastic sheeting and painter’s tape and cover vents to keep sanding dust from travelling through your HVAC system. This will protect the floor from any spilled or splattered plaster or joint compound and make clean up a bit easier, as much of the dust from sanding will collect on the drop cloths. How to Fix Cracks in Plaster Step 1: Prepare the Roomīefore starting, cover the floor with plastic drop cloths and fasten the cloths in place using painter’s tape. It can, however, require a bit more extra time and skill than patching a hole in drywall. If you have holes or cracks in your plaster walls or ceilings, repairing them isn’t difficult. Suitable for test applications or to get acquainted with the product.Many older homes may still have some walls and ceilings made of plaster and lath instead of the now standard drywall or wallboard. Starter Pack: Introductory pack with one of each component of the Plaster Magic Repair Kit. Enough to repair 9 linear feet of plaster cracks or 30 square feet of loose plaster. Homeowners Pack: A smaller pack for smaller jobs. Enough to repair 18 linear feet of plaster cracks or 60 square feet of loose plaster. Painters Pack: Perfect for the do-it-yourselfer or the small project repair. Enough to repair 48 linear feet of plaster cracks or 160 square feet of loose plaster. Big Wally’s Plaster Magic solves this problem by reestablishing a solid yet flexible bond with a conditioner plus adhesive.Ĭontractors Pack: A much larger kit for the professional user or more complex repairs. The most vexing problem with plaster is that it can crack or become loose from its wood lath. Big Wally’s Plaster Magic is the perfect solution for your cracked plaster walls or cracked plaster ceilings.
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