Asbestos, also known as glass wool, is the first to be widely used in thermal insulation due to its excellent thermal insulation performance and low cost. It also has the characteristics of easy operation and filling, so it is widely used in thermal conduction and thermal insulation field. However, its biggest problem is that glass fiber is easily inhaled into human lungs, and easily penetrates clothing to contact the skin, and then penetrates the skin to enter the human body. Glass fibers that enter the lungs and human body cannot be digested and excreted, and glass fibers are carcinogenic. Therefore, this year, many industries have banned the use of asbestos as a thermal insulation material.
High and low temperature test chambers involve temperature-controlled test equipment, and all need to be insulated. So, the thickness of the insulation material and the choice of material are very important. Today we will talk about the choice of insulation material.
Choose different heat transfer methods for heat preservation methods and adopt corresponding methods and materials. For example, in order to prevent the minute heat transfer of hot air, a vacuum insulation layer is used. However, due to technical and cost reasons, our current environmental testing equipment uses thermal insulation materials, the most common are fiberglass thermal insulation cotton (asbestos) and foamed polyurethane, foamed styrene, etc. Now let's talk about these materials Pros and cons.
Keep invoices, packing lists and shipping orders protected and securely attached to boxes and other containers throughout the shipping process
Crafted from oil- and water-resistant polyethylene with a high-tack rubber resin adhesive, our packing list envelopes are built to withstand some of the toughest handling conditions.
Available with or without printing in a variety of sizes to match your individual shipping needs. To keep shipping labels safe and secure, we also offer both clear and high visibility label protection tapes.
- side-loaded/ top-loaded envelope opens easily and closes securely
- Provides control and protection of on-package packing list and invoice documents
- Non-printed/printed design provides a clear window for logos, instructions or other information and is barcode readable
- Offers convenient peel-and-stick document attachment
- Features a polyethylene backing, synthetic rubber adhesive and paper liner
- Tough film helps reduce puncturing and tearing
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AM-Besten Technology Ltd. , https://www.bestenpack.com