Glass wool is pure white, not bleached. Bleached glass wool is milk white, and the glass fiber is thorny, white formaldehyde-free glass wool is soft to touch. Second, look at the test report, and verify the authenticity of the test report online. Detection result of formaldehyde-free should be zero or "not detected". If the detection result is 0.1, it can't be formaldehyde-free. So take a closer look at the test report, and do not be deceived .
You can disinguish from appearance. Glass wool is pure white, soft and formaldehyde-free. Formaldehyde-free environmental friendly glass wool is made by bonding, solidifying and moulding previous wool and new binder, based on traditional centrifugal glass wool, through readjustment of formula and molding process of glass wool raw material.
It is very simple. First, look the appearance. Glass wool is pure white, not bleached. Bleached glass wool is milk white, and the glass fiber is thorny, white formaldehyde-free glass wool is soft to touch. Second, look at the test report, and verify the authenticity of the test report online. Detection result of formaldehyde-free should be zero or "not detected". If the detection result is 0.1, it can't be formaldehyde-free. So take a closer look at the test report, and do not be deceived . Many manufacturers have bleach the glass wool which is cheap but counterfeit. You get what you pay for. So look carefully.
Glass wool eco-friendly attributes can be analyzed from different aspects. Glass wools with different colors are not the same and there is no offensive odour.
Rock wool is much harder than glass?silk. rock wool color: Khaki, deep. glass?silk wool color: yellow, light. Cellosilk is not the same. Rock wool is harder while glass?silk wool is softer. Rock wool is white, without elasticity. It is irritating to skin. But glass wool is yellow, with elasticity and without irritation to skin. Glass wool is made through high temperature melting of industrial waste glass, and then making glass into flow by high-speed centrifuge, pulling glass flow into fiber under high temperature and high speed. Rock wool is inorganic fiber made by base materials of fine basalt after high temperature melting in high-speed centrifugation equipment. Glass wool is more economical and environmentally friendly than rock wool.
