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

用于外墻保溫的巖棉板，其實在很新的規范標準里，已經刪除了容重指標，只保留了一些力學性能指標。比如導熱系數、抗壓強度、抗拉拔強度、憎水率、吸水率等指標。經一些檢測部門實驗表明，巖棉的導熱系數與容重并不是完全成正比的。巖棉容重在80-100公斤之間，它的導熱系數是很佳狀態。巖棉容重太低或太高都會使導熱系數下降。

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.

且高密度的巖棉板，不僅增加了施工難度，更重要的一點是，增加了保溫層的自重，時間久了，就增加了保溫層脫落的風險。巖棉板的另一種主要使用場景就是室內隔斷填充，起到隔音降噪的效果。經實驗表明，巖棉容重在80公斤左右的時候，隔音性能是很佳的。而更高容重的巖棉板，反而會使隔音性能降低。

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，巖棉板的價格與密度也有很大關系。密度越高，價格也越貴。而且呢，并不是越貴的產品，性能就越好，選擇適合自己的產品才很重要。

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、通過肉眼觀察和感受。

1. Observe and feel with the naked eye.

優良巖棉板從外觀來看，纖維很細，柔軟且密實，顏色呈棕黃色，球渣含量低，不容易掉渣。用手觸摸沒有明顯的扎刺感覺，按壓和拉伸也不容易變形。

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.

而劣質巖棉板從外觀來看，纖維比較粗且硬，顏色呈亮黃色，球渣含量較高，容易掉渣。用手觸摸有明顯的扎刺感覺，按壓和拉伸的時候容易變形且掉渣嚴重。

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.

造成這種差異的主要原因，一是原材料不同，優良巖棉板主要已玄武巖、輝綠巖等為原材料。熔融之后，甩出的纖維絲比較細膩。而劣質巖棉板主要以高爐礦渣為原材料，熔融之后的做出的纖維絲比較粗，且容易斷。第二個原因是生產工藝和生產線質量不同。優良的巖棉生產線，會是原材料融化更充分，甩絲更纖細柔和，且噴膠和憎水劑等輔助小料的時候，也更加均勻合理。而劣質巖棉生產線，在這些生產工藝上做的較差。

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、我們在選購巖棉板的時候，一定要賣家提供檢測報告，并仔細查看檢測報告上的檢測數據。如：巖棉容重、尺寸誤差、導熱系數、憎水率、吸水率、抗壓強度、抗拉拔強度等。這些數據都是影響巖棉質量的重要指標。另外，檢測報告一定要選用省級以上的檢測單位，很好是國家級的，更具性，并砍紅章，謹防偽冒！

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、實地驗廠。如果時間充裕的話，建議客戶朋友實地驗廠，謹防一些小作坊、或者經銷商冒充廠家，以次充好，虛假宣傳。如果您實在是抽不出時間去廠里考察，一定要賣家給您提供同等規格的樣品，并保證樣品質量和大貨質量一致。巖棉行業魚龍混雜，擦亮我們的雙眼，才能選購到優良、靠譜的產品！您學到了嗎，歡迎點贊、評論、轉發！

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!

本文由濟南巖棉板為您提供，我們的網站是: http://www.xpj55507.com 我們將以全心全意的熱情為您提供服務，歡迎您的訪問！

This article is provided by Jinan Rock Wool Board, and our website is: http://www.xpj55507.com We will provide you with wholehearted enthusiasm and welcome your visit!