For example, Utson Group claims that its rock wool products use environmentally friendly resins with high fiber stability and will not release harmful substances. In addition, a study conducted in December 2024 indicated that anti-corrosion rock wool containing additives such as formaldehyde may cause indoor air pollution.
一〠Composition and characteristics of rock wool: coexistence of environmental friendliness and potential risks
Rock wool is an artificial inorganic fiber made from natural minerals such as basalt and dolomite, which are melted at high temperatures. Its core advantages include:
1. Excellent fire resistance: Rock wool belongs to A1 level non combustible material, with a melting point exceeding 1000 ℃, and does not release toxic gases in a fire.
2. Outstanding sound insulation and thermal insulation effects: The porous fiber structure can effectively absorb sound waves and block heat conduction, making it suitable for wall and roof insulation.
3. Strong chemical stability: neutral pH value, non corrosive to metals, antibacterial and mildew resistant, suitable for long-term use.
But the controversy lies in the potential risks in processing and use:
Fiber stimulation: Rock wool fibers have a small diameter, and direct contact may penetrate the skin or eyes, causing itching, redness, and even conjunctivitis.
Dust inhalation risk: Fiber dust generated during construction may irritate the respiratory tract, and long-term exposure may increase the risk of lung diseases.
Hidden danger of additives: Some inferior rock wool may use adhesives containing formaldehyde and phenol, which may pollute indoor air.
二〠Authoritative research: Health risks and the necessity of protection
1. Short term exposure risk
Skin and eye irritation: Rock wool fibers are prone to adhere to the skin, causing stinging or allergies; Entering the eyes may cause conjunctivitis.
Respiratory discomfort: Inhaling dust during installation may cause coughing, sore throat, and more pronounced symptoms in sensitive individuals.
2. Long term exposure to disputes
Carcinogenicity controversy: The International Agency for Research on Cancer (IARC) classifies some ceramic fibers as Class 2B (possibly carcinogenic), while mainstream rock wool is classified as Class 3 (non carcinogenic) due to chemical inertness.
Lung health: Long term inhalation of large amounts of fiber may cause pneumoconiosis, but modern high-quality rock wool fibers have high stability and extremely low dust release.
3. Hidden dangers of anti-corrosion treatment
If low-quality resin is used for anti-corrosion rock wool, it may release volatile organic compounds such as formaldehyde, which can affect indoor air quality.
三〠Home Safety Guide: Scientific Protection and Selection Suggestions
1. Protective measures during the construction phase
Wear protective equipment: Wear dust masks, goggles, and gloves during operation to avoid direct contact with fibers.
Ventilation and Cleaning: When cutting rock wool, maintain indoor ventilation, clean dust in a timely manner, and reduce suspended particles.
2. Material selection criteria
Identify environmental certification: Choose products that are formaldehyde free and tightly bonded with fibers (such as acrylic adhesive type) to reduce dust emissions.
Priority for major brands: Manufacturers such as Utson use advanced technology to ensure fiber stability and low dust characteristics.
3. Safety maintenance after installation
Sealing treatment: The wall insulation layer should be covered with mortar or waterproof layer to prevent fiber leakage.
Regular inspection: If the insulation layer is found to be damaged, it should be repaired in a timely manner to avoid fiber exposure.
四〠Industry Trend: Technological Progress Promotes Security Enhancement
After 2023, the production process of rock wool will continue to be optimized:
Fiber stability enhancement: By using environmentally friendly adhesives such as acrylic acid salts, fiber breakage and dust generation are reduced.
Popularization of green additives: gradually phasing out resins containing phenol and formaldehyde, and shifting towards bio based adhesives.
Construction standardization: Promote prefabricated formed panels to reduce the dust risk caused by on-site cutting.
conclusion
The safety of rock wool household use depends on material quality, construction standards, and post maintenance. High quality rock wool itself is non-toxic and harmless, and has excellent fire and sound insulation performance; However, inferior products or improper use may pose health hazards. Consumers should choose legitimate brands, strictly implement construction protection measures, and pay attention to material environmental certification. With the advancement of technology, the safety of rock wool will be further improved, becoming a reliable choice for home energy-saving renovation.