Skim Coat Plastering

Traditional plastering consists of three separate coats of plaster. The first two, called the brown and scratch coats, are coarse, often with sand, horsehair, and other binders added to the mix. The third or finish coat is a smoother blend, made of water and finely ground lime and plaster.

Thethree-coat method今天需要木材或金属板条以加固，今天相对罕见。持久的优势仍然可以增加隔音，并且在许多人看来，具有更多的特征。然而，由于它既是劳动力和物质密集型，因此可能非常昂贵。

Skim Coat Plastering

这是三涂层和简单地贴上墙板板之间的接缝之间的中间立场。脱脂外套的方法涉及在整个墙壁或天花板上应用单一的，第八英寸厚的石膏层墙板。

Skim coating requires some skill with a trowel, so it you’ve never held a trowel in your hand, you would be well advised to start out with a little patching work first. But you don’t have to apprentice to a professional plasterer for a year and a day to be able to produce a quite satisfactory finish.

您需要什么

You will need the same tools as the professional plasterer. The key ones are the plasterer’s trowel; a carrier called a hawk, with its square top surface and handle below; a narrow trowel (or wallboard knife) for smoothing small areas and finishing around pipes; and a brush for applying water during final smoothing. Mixing equipment will be required, too, including an empty joint compound bucket or the equivalent, and a mixer bit for your drill.

Plasterer’s Trowel

该工具具有平坦的矩形钢刀片，其背面的中央安装了木柄。它可以以多种不同的尺寸购买，但是四乘10英寸的抹子对于开始的石膏剂来说是可管理的尺寸。如果您使用了类似形状的抹子来使水泥光滑或施加砂浆，则抹子的重量和感觉会很熟悉。但是，如果您对您来说是新手，那么将需要一些练习才能掌握用该工具操纵石膏所需的协调。

Other Trowels

有许多专用的抹灰抹子，带有短刀片和窄叶片，抹子手柄和刮板手柄，价格便宜，价格较高。首先，一对工具，可能是两英寸，另外四英寸宽，就足够了。角箭也很有价值；不过，首先，如果您手头上有一个联合化合物角抹子，则将证明足够。

鹰

This tool acts as a reservoir for the plasterer as he or she applies the material to the wall or ceiling. The hawk is held in one hand, a trowel in the other. The hawk has a flat top surface made of magnesium or aluminum, with a wooden or plastic handle beneath. The top is square with rounded corners; several sizes are available (12, 13 or 14 inches square), but to begin smaller is probably better.

Water Brush

Any high-quality brush will suffice for splashing water onto a plaster surface to be smoothed, but I favor a purpose-made blister brush. It has a pair of felt pads and sponges a surprising amount of water. It will outlast most other brushes, and will help in the smoothing process when applied directly to the plaster, because it has no bristles to fall out or to mark the surface.

Preparation

按照录制墙板接头的方式准备表面。但是，使用专为脱脂涂层而设计的较便宜的干墙（由于其纸面的颜色，通常称为蓝色板）。您也可以在常规墙板上浏览，但是您需要首先应用粘合剂。这是用辊子放置的，并且在大多数建筑物供应商店都可以使用。

将玻璃纤维网状胶带应用于干墙片之间的所有接头以及在壁板和成型的所有连接处。这将有助于防止破裂。虽然并非每个专业人员都坚持使用它，但我也建议您先用玻璃石膏的底漆覆盖关节。

首先将区域弄湿，然后将粗灰泥涂成一层涂层，覆盖胶带，但要注意避免离开墙板平面以外的团块或脊。

制作量规

我赞成将石灰和饰面灰泥混合在量规（或仪表）中。首先将石灰混合在水桶中：倒入水中，加入石膏，然后混合，最好与半英寸的钻头和混合钻头混合。石灰应具有浓奶油的一致性。

计,现在倒堆上石灰mixing surface (a four-by-four-foot sheet of plywood works nicely). Using a plasterer’s trowel, shape it into a circle, empty in the middle, that resembles the mouth of a volcano. Pour water into the ring to a depth of an inch or more, then ladle in a mound of plaster, using a cup or other convenient receptacle. The amount of plaster and lime should be roughly equal.

使用两个抹子混合成分，先弄湿干灰泥，然后以修改的划船运动将混合物从您身上卸下，然后向后进行。当混合物均匀时，您已经准备好了。现在，您在石膏套装之前有15或二十分钟。

Applying the Plaster

加载鹰：起初不要太多，不超过您所能处理的。一开始也不要尝试做太大的区域。从不超过三英尺平方的区域开始。

在抹子上使用少量的工作，将石膏涂在墙壁上，其工具与表面的角度低。沿着表面轻轻推灰泥，并用抹子的一侧齐平。彻底覆盖该区域，而不必担心平滑。

覆盖后，用抹子上的少量石膏返回它。这次施加更大的压力（实际上，您可以将其删除与此通行证中涂抹一样多的灰泥）。以并行冲程来处理表面，然后再次垂直于先前的通行证。可能需要对对角线进行第三次通过。表面应该相当光滑，但不必担心镜面状的表面，因为最终的平滑是在少量水的帮助下完成的。

当您继续将石膏涂在相邻区域时，请记住，将涂上涂抹的旧规则贴贴，“保持湿边”。在一个方向上工作，捡起您离开的地方。

Smoothing the Plaster

为了平滑, the plasterer’s trowel is again held at a low angle to the fresh plaster surface. If the plaster has set up (hardened), you may need to add some water. Wipe the blister brush over the surface, and try again (a paintbrush dipped in water can also be used to splash the area).

在光滑的过程中，抹子会在刮擦灰泥时会积聚糊状的糊状物。用它来填充孔，划痕，抹子标记或其他凹痕。