The answer is no! We know that the main uses of rock wool board are in two aspects, one is external wall insulation.

用于外墙保温的岩棉板，其实在很新的规范标准里，已经删除了容重指标，只保留了一些力学性能指标。比如导热系数、抗压强度、抗拉拔强度、憎水率、吸水率等指标。经一些检测部门实验表明，岩棉的导热系数与容重并不是完全成正比的。岩棉容重在80-100公斤之间，它的导热系数是很佳状态。岩棉容重太低或太高都会使导热系数下降。

The rock wool board used for external wall insulation has actually removed the unit weight index and only retained some mechanical performance indicators in the latest standard specifications. For example, thermal conductivity, compressive strength, tensile strength, hydrophobicity, water absorption, and other indicators. According to some testing department experiments, the thermal conductivity of rock wool is not entirely proportional to its bulk density. The bulk density of rock wool ranges from 80 to 100 kilograms, and its thermal conductivity is in a very good state. If the bulk density of rock wool is too low or too high, it will cause a decrease in thermal conductivity.

且高密度的岩棉板，不仅增加了施工难度，更重要的一点是，增加了保温层的自重，时间久了，就增加了保温层脱落的风险。岩棉板的另一种主要使用场景就是室内隔断填充，起到隔音降噪的效果。经实验表明，岩棉容重在80公斤左右的时候，隔音性能是很佳的。而更高容重的岩棉板，反而会使隔音性能降低。

And high-density rock wool boards not only increase the difficulty of construction, but more importantly, increase the self weight of the insulation layer. Over time, it increases the risk of insulation layer detachment. Another main use scenario of rock wool board is indoor partition filling, which plays a role in sound insulation and noise reduction. Experiments have shown that when the bulk density of rock wool is around 80 kilograms, its sound insulation performance is very good. However, rock wool boards with higher bulk density can actually reduce their sound insulation performance.

另一方面呢，岩棉板的价格与密度也有很大关系。密度越高，价格也越贵。而且呢，并不是越贵的产品，性能就越好，选择适合自己的产品才很重要。

On the other hand, the price of rock wool board is also closely related to its density. The higher the density, the more expensive the price. Moreover, the more expensive a product is, the better its performance. Choosing a product that suits oneself is crucial.

1、通过肉眼观察和感受。

1. Observe and feel with the naked eye.

优质岩棉板从外观来看，纤维很细，柔软且密实，颜色呈棕黄色，球渣含量低，不容易掉渣。用手触摸没有明显的扎刺感觉，按压和拉伸也不容易变形。

From the appearance of high-quality rock wool board, the fibers are very fine, soft and dense, and the color is brownish yellow. The content of ball slag is low, and it is not easy to drop slag. There is no obvious pricking sensation when touched by hand, and it is not easy to deform when pressed and stretched.

而劣质岩棉板从外观来看，纤维比较粗且硬，颜色呈亮黄色，球渣含量较高，容易掉渣。用手触摸有明显的扎刺感觉，按压和拉伸的时候容易变形且掉渣严重。

However, from the appearance of inferior rock wool board, the fibers are relatively thick and hard, with a bright yellow color and a high content of ball slag, which is easy to fall off. There is a noticeable pricking sensation when touched by hand, and when pressed and stretched, it is prone to deformation and severe slag loss.

造成这种差异的主要原因，一是原材料不同，优质岩棉板主要已玄武岩、辉绿岩等为原材料。熔融之后，甩出的纤维丝比较细腻。而劣质岩棉板主要以高炉矿渣为原材料，熔融之后的做出的纤维丝比较粗，且容易断。第二个原因是生产工艺和生产线质量不同。优质的岩棉生产线，会是原材料融化更充分，甩丝更纤细柔和，且喷胶和憎水剂等辅助小料的时候，也更加均匀合理。而劣质岩棉生产线，在这些生产工艺上做的较差。

The main reason for this difference is that the raw materials are different, and high-quality rock wool boards mainly use basalt, diabase, and other raw materials. After melting, the spun fibers are relatively delicate. The inferior rock wool board mainly uses blast furnace slag as the raw material, and the fibers made after melting are relatively thick and easy to break. The second reason is that the production process and quality of the production line are different. A high-quality rock wool production line will melt the raw materials more fully, spin the fibers more finely and gently, and spray glue and hydrophobic agents to assist with small materials, which is also more uniform and reasonable. Poor quality rock wool production lines perform poorly in these production processes.

2、我们在选购岩棉板的时候，一定要卖家提供检测报告，并仔细查看检测报告上的检测数据。如：岩棉容重、尺寸误差、导热系数、憎水率、吸水率、抗压强度、抗拉拔强度等。这些数据都是影响岩棉质量的重要指标。另外，检测报告一定要选用省级以上的检测单位，很好是国家级的，更具性，并砍红章，谨防伪冒！

2. When purchasing rock wool boards, we must ensure that the seller provides a testing report and carefully review the testing data on the report. For example, rock wool unit weight, size error, thermal conductivity, hydrophobicity, water absorption, compressive strength, tensile strength, etc. These data are important indicators that affect the quality of rock wool. In addition, the testing report must be selected from a testing unit at or above the provincial level, which is good for being national level and more authoritative. It should also be stamped with a red seal to prevent counterfeiting!

3、实地验厂。如果时间充裕的话，建议客户朋友实地验厂，谨防一些小作坊、或者经销商冒充厂家，以次充好，虚假宣传。如果您实在是抽不出时间去厂里考察，一定要卖家给您提供同等规格的样品，并保证样品质量和大货质量一致。岩棉行业鱼龙混杂，擦亮我们的双眼，才能选购到优质、靠谱的产品！您学到了吗，欢迎点赞、评论、转发！

3. On site factory inspection. If there is enough time, it is recommended that customers and friends conduct on-site factory inspections and be cautious of some small workshops or distributors impersonating manufacturers, passing off inferior products and false advertising. If you really don't have time to go to the factory for inspection, make sure the seller provides you with samples of the same specifications and ensures that the quality of the samples is consistent with the quality of the bulk goods. The rock wool industry is a mixed bag of good and bad. Only by shining our eyes can we choose high-quality and reliable products! Have you learned? Welcome to likes, comments, and reposts!

本文由济南岩棉板为您提供，我们的网站是: http://jyjfsj.com 我们将以全心全意的热情为您提供服务，欢迎您的访问！

This article is provided by Jinan Rock Wool Board, and our website is: http://jyjfsj.com We will provide you with wholehearted enthusiasm and welcome your visit!