SANDING BETWEEN COATS: The #1 Most Important Wood Finishing Step

Sanding lightly between coats is the single most important step you need to take to achieve a smooth, interior wood finish.Watch my 11-minute video lesson below for all the details. Transcript after the video window for detailed study. Want more tips for creating a glass-smooth finish? Visit the most popular page on my website for avideo lesson on buffing wood finishes to perfection.它甚至可以处理刷涂层的饰面。视频窗口下方的视频成绩单,以防您想以这种方式研究这些技术。

视频教程

I hope this video helps you achieve better wood finishing results.Please consider helping me cover the cost of filming, editing and publishing videos like this one. Click the “buy me a coffee” button below to make a contribution. It’s fast, safe, simple and much appreciated!

视频成绩单:在此视频中,我想向您解释成功的室内木材精加工中最重要的一步。当然,很多步骤都很重要,但是如果您错过了这一点,您将永远无法获得出色的效果。

提出的谷物问题

现在,这是我在以前的视频中向您展示的一件樱桃。我们用水性氨基甲异烷涂了它。双方都打磨了。这侧是未涂层的。它非常非常顺利,感觉很棒,非常诱人。这方面曾经有这种感觉,但是现在绝对没有这种感觉。在视频中确实不会遇到太多,但是我想知道您是否仔细看,也许我们可以使用相机,仔细看看。您可以在这里看到一些灯光。您会看到这不再是平滑的。这对你来说并不奇怪。 I told you it wouldn’t be smooth because the wood fibers that were laying down soaked up some of the urethane and they stood up and then they hardened in the upright position. All microscopically of course, but that’s why it doesn’t feel so smooth and that’s why we need to do this vital step of sanding between coats.

什么时候打磨

在外套之间打磨的最重要时间是在第一层涂层彻底干燥之后,但是除了最后一件外套外,您仍然应该在每件外套之后做到这一点。即使在这种情况下,如果您要继续抛光表面,那么您也会想打磨最后一件外套。但是通常,如果您不抛光,我们将稍后再解决。如果您要涂尿烷饰面,那么您将穿上外套。您要在外套之间打磨。您要刷另一个外套。这件外套干燥后要打磨,然后可能穿上第三件外套,然后将其称为一天。这是一个非常有用的表面,没有什么可为此感到羞耻的。它不如它可以得到的那样好,但是很好。

因此,涂层之间的打磨是非常轻的打磨,它的工作绝对不是要经历您所应用的饰面,而只是为了消除那些颠簸。如果您很好地选择了尿电烷,并且如果您使该氨基甲酸酯完全干燥,那么这是一项非常快的工作。只需一两个快速通过任何给定的位置,就完成了。您知道当这种打磨会产生一种白色粉末时,您会做得很好,我会在一秒钟内向您展示。

砂纸要使用

就砂纸而言,这一定可以。因此,这是第220页,因此是220粒度砂纸,这意味着在此处的任何给定的平方英寸上,应该有大约220个颗粒。因此,数量越大,粒子越小,因为它们都适合一平方英英寸。这就是这意味着的意思,而220就像您想使用的那样粗糙。有时您会看到240,几乎与220相同。您无法真正分辨出区别。您还会发现320,效果很好。它有点了……对于我的喜好而言,它的磨损太快了。所以我选择220或240。

您可以通过两种方法可以打磨木头。首先,您可以将四分之一的砂纸放在这样,并且可以沿其长度折叠。这使您可以用一块非常好的砂纸打磨,因为我们在这里有要打磨的表面。另一表面也很粗糙。因此,如果我试图用手用实际的纸张打磨,我的手不会像这样打磨纸上。因此,我得到了牵引力,我的形状很好,可以将其翻转。我可以重新折叠以暴露新的表面。因此,我将使用整个四分之一的砂纸。在我扔掉之前,它将完全用完。

Power Sanding Between Coats

这是一小块木头,因此实际上无需使用电动工具,但是像这样的砂光机对大多数现实世界项目非常有用。I mean, this is just a sample, but if you’re building a cabinet or a table or anything like that, then a quarter sheet finishing sander is going to save you a lot of time and it’s going to help you to do a better job. Do not use a random orbit sander or anything like that. Way, way too aggressive. You’re going to go right through your finish and you’re basically going to go back to square one again, because you would’ve removed pretty much all the urethane you put on. This is much gentler. It just vibrates a little bit. That’s all it does. So it is one of the mildest power sanders you can use.

在这两种情况下,我是否由ha砂光nd with a quarter of a sheet of paper or I take this quarter sheet and I put it on this sander, in both cases, I need to have a quarter sheet. This is a full sheet of sandpaper. This is the way it comes when you buy it eight and a half by 11 in size, just like a regular sheet of paper. But you shouldn’t use scissors to cut this into quarters. I mean, it’s unnecessary. You got to find the scissors, you got to use the scissors and it also dulls the scissors. But if you just fold it in half like I’ve shown you here and then you take a sharp edge, any kind of a sharp edge. It doesn’t matter, a table or machine or just a scrap of wood like this, and you just put it over. That sharp edge is going to do a really nice job of tearing that for you. It’s good. You can double up. When you have the two halves you can… There you go. You’re all set for a while.

实际的打磨,做得很好,但是我想警告您一些陷阱。因此,与当我涂上涂层时,我真的从浅角度出现的光中受益,这样我就可以看到我的位置和没有涂层的位置,这对于在外套之间打磨并不重要。因为好吧,如您所见,您可以真正看到打磨的地方。就是这样。突然之间,这种情况从非常粗糙到惊人的光滑。真的,非常平滑,看看它是如何粉化的。这正是您想要看到的。

Sanding Well

Bad quality urethane never gets dry enough so that it will form powder like this. It’ll get kind of gummy and it’ll leave little streaks of gumminess on the sandpaper. You don’t want to see that. That can be caused if urethane hasn’t been allowed to dry long enough. But more often than not it’s because the urethane it isn’t that good quality. The urethanes that I’m recommending here never do that. So you don’t have to worry.

我将接下来使用它,实际上我不需要在这里使用它,但是我只是向您展示它是如何工作的。再次提及它在较大的表面上有多么有用。哦,就是这样。If this was a piece of furniture and say I had finished an edge somewhere, I wouldn’t use the quarter sheet finishing sander on the edge even if I had a lot of edges to do, just because it’s so easy for the sander to tip to one side maybe, go right through the finish. Round over the corner that shouldn’t be rounded for instance. So whenever I have edges or any narrow surfaces, I’m going to do it by hand.

现在这不是砂表面。这不是完成的表面,但这就是我这样做的方式。只是用我的拇指握住它,施加了一些压力,这几乎是要承受的。现在,下一个重大的一步是穿另一层氨基甲酸酯,稍后我将向您展示。但是在我们这样做之前,我想您可以想象我们需要使它变得完全干净。我可以用大头钉抹布去做。大头钉抹布只是一种粘性的抹布,在完成之前准备准备表面。它经常用于汽车行业。不过,当我可以使用真空时,我真的不喜欢涂鸦。

打磨后清洁

这里在我的工作室,我有一个中央真空吸尘器。使用it mostly for preparing for finishes actually, but you can use a regular household vac, a ShopVac. It doesn’t matter. You just want to put a bristle brush on it and watch what happens here when I suck up all this dust. Now that is ready to go. That’s ready to go for our second coat. Beautifully smooth and inviting to the touch. That’s going to get even better once we get the second coat on and we start to work that down a little bit too.

但是在外套之间打磨,对于任何形成尿电烷饰面的胶卷绝对至关重要。我还碰巧在擦拭层上使用它,这实际上并没有以相同的程度形成胶片,但是它们确实会导致表面纤维升起并变得模糊和硬化。因此,在外套之间打磨,这是伍德终结者的最好朋友。我几乎忘了一件事。当您在外套之间打磨这样的小东西时,最好在某种弹性的表面上做到这一点。这就是为什么我在这里有这块泡沫的原因。您可以看到它是一种高里程泡沫。我已经用它从事很多工作,而我不希望自己正在努力伤人木头的表面。如果我们正在制作一个自由的柜子或类似的东西,在那里的外套之间打磨,那么,这没有任何意义,因为这东西站在空中,我们正在这样做。

But it’s not unusual if you’re making a shelf, finishing a shelf, say, or some smaller wooded item that both sides of something need to be smooth and presentable. Just the sanding I had done just now, if I had done it on this wood surface here, well, I guarantee you that the underside of the wood would’ve been marred because there’s just glue bumps here and all kinds of things. But the foam side steps all that because it’s got a little bit of give to it. You don’t necessarily need to use a piece of foam. Three or four layers of a blanket folded on itself, an old shop blanket something that you don’t mind getting dirty and dusty that works too. But just remember that when you’re sanding, and this applies to sanding between coats or even standing wood for the first time before you even get to the finishing process, you want some sort of resilient surface that’s clean and smooth with no bumps on it. It’s not going to cause any damage to the wood.

Because especially when I’m sanding with an electric sander, that’s imparting a kind of a vibration to the wood. If that vibration is coupled with something hard underneath a little bump or nub or something, then that’s definitely going to mar the wood. An old piece of carpet, that’s another great idea. Just anything soft to keep this protected, especially if you’re using electric sanders.

0分享
Tweet
分享
分享
别针
Baidu