Cotton Acoustic Insulation

This is Cotton Acoustic Insulation. The maker is Anhui Ziyan Fiber Products Technology Co., Ltd. We are a specialized small enterprise. We have done fiber products for many years. This product has a surface density of 1 to 5 kg/m². That number tells you the weight per square meter. Its STC sound transmission class is at least 25 dB. That means it blocks sound from going through. Its NRC sound absorption coefficient is at least 0.65. It also absorbs sound well. So this product does two things. It blocks sound and it absorbs sound. Two in one. The fire rating is B1. That is a difficult-to-burn material. It is safe and reliable. We call this product for a reason. It works on both sides of the sound problem. You can trust Cotton Acoustic Insulation to give you real results.

Our factory has a finished product inspection zone. This zone is not just for show. We have a quality control team. Before each batch leaves the factory, it goes through this zone. How does it work? First, we take samples. We randomly pick a few rolls from each batch. Then we send them to the inspection zone for tests. We check the surface density. Is it correct? We check the STC. Does it meet the standard? We check the NRC. Is it high enough? We also test fire resistance. Once all tests are done and the numbers are good, we ship the batch. If a batch fails, we redo the whole batch or throw it away. We do not sell bad products to customers. That is our bottom line. Many distributors worry about buying bad products. We can tell you that every roll of product that leaves Anhui Ziyan has passed this inspection. Let me give you a real example. A customer who does home theater rooms had high requirements for sound blocking and sound absorption. He used other materials before. He said the results were not steady. We sent him samples. He took them to a third-party test lab. The lab found NRC of 0.68 and STC of 27 dB. Both were better than our stated numbers. He was very happy. When the first batch arrived, he tested a few rolls himself. Every roll matched the report we gave him. He said our quality control is really strict. Now he uses our Cotton Acoustic Insulation for all his home theater projects.

Our service is simple. Before the sale, we talk one-on-one. We send free samples. During the sale, we tell you production progress. After the sale, if there is a problem, we fix it at any time. Remember Anhui Ziyan. We are a specialized small factory with a real inspection zone. If you need product that you can trust, come to us. We check every roll. You will never get a bad surprise. Just steady performance and clear communication. That is how we do business.

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