MF89 one-component silicone structural sealant is a high-performance material known for its excellent elasticity and high modulus. It offers strong adhesion to glass, aluminum alloy, stainless steel, and most common construction materials. The sealant cures with a neutral formula, ensuring it is non-corrosive and safe for use on sensitive surfaces. It can withstand joint displacement up to 25% and exhibits outstanding resistance to atmospheric aging, making it ideal for long-term outdoor applications.
The key technical specifications of MF89 include: a black appearance after curing, a drying time of 50 minutes, a sag resistance of Zmm, a hardness of 40 Shore A, a tear strength of 6.0×10ⴠN/m, an ultimate tensile bond strength of 7 MPa, and an elongation of 100%. This product meets the requirements of GB16776-97 and ASTM C1184-95. It is tested according to GB/T 13477, GB 531, and ASTM D624 standards.
During installation, proper surface preparation is essential. First, clean the surface using the "double cloth" method with a suitable cleaning agent. Next, apply protective tape as specified in the MF881 guidelines. For the application process, use either a manual or pneumatic injection gun to apply the sealant, maintaining even pressure to ensure full gap filling. Afterward, use a scraper to smooth the bead and push it into the joint, ensuring complete coverage. The glue should be applied in an environment where the temperature remains above 10°C. For storage, keep the product in a well-ventilated, dry area below 27°C for a period of six months.
This sealant is primarily used for the structural assembly of architectural hidden curtain walls and is also suitable for other waterproofing and weatherproofing applications. When using, note that it should not be applied in fully enclosed or airtight spaces, unless otherwise specified. As with MF881, always follow safety guidelines and ensure proper ventilation during application.
3PCS/4PCS Shield Anchor
3PCS/4PCS Shield Anchor
Hebei Qianmu Fastener Manufacturing Co., Ltd , https://www.qmjgjfasteners.com