MX‑962 is a ready‑to‑use liquid toughening masterbatch with silicone‑based core‑shell rubber particles uniformly predispersed inside epoxy carrier resin. Different from conventional acrylate or butadiene CSR grades, its silicone rubber core delivers outstanding low‑temperature elasticity and excellent weather‑aging resistance. This toughener relieves internal thermal stress within cured epoxy networks, improves fracture toughness at cold service conditions, and enhances long‑term outdoor weather

Product Detail

Product Detail PageChemical IdentityMX‑962 is a predispersed liquid masterbatch based on epoxy carrier resin. The functional toughening phase consists of special silicone‑rubber core‑shell (CSR) particles with a flexible silicone elastomer inner core and a compatible polymer outer shell. These CSR particles are homogenously suspended within the epoxy resin during manufacturing without agglomeration. Formulators can directly blend MX‑962 into base epoxy systems, eliminating high‑shear milling and extra dispersion operations. It exhibits good compatibility with standard bisphenol‑A epoxy resins and matches common curing agents including amine, dicyandiamide and anhydride hardeners. Supplied as viscous liquid, it can be integrated smoothly into existing epoxy formulation workflows for adhesives and composite matrices.

Key PerformanceAfter epoxy curing, finely distributed silicone‑based CSR particles are embedded within the rigid cross‑linked epoxy network. Under mechanical shock or drastic temperature drop, the highly elastic silicone rubber core absorbs stress and dissipates fracture energy, effectively restraining crack initiation and propagation at low‑temperature conditions. Compared to acrylic CSR products, MX‑962 provides superior low‑temperature flexibility and greatly improves weatherability, resisting thermal‑oxidative aging and UV‑induced degradation for long‑term outdoor service. It reduces the risk of micro‑cracks caused by repeated thermal cycling. While boosting low‑temperature toughness and weather resistance, this masterbatch only causes a moderate rise of system viscosity, maintaining acceptable processing properties for prepreg production, resin infusion and adhesive dispensing. The thermal‑resistance of the cured epoxy matrix will not experience severe deterioration after proper addition dosage.

ApplicationsMX‑962 is primarily applied to epoxy structural adhesives intended for outdoor equipment, transportation and infrastructure components that endure cold climate and long‑term weather exposure. It is also used as toughening modifier for carbon‑fiber and glass‑fiber reinforced epoxy composite laminates working under outdoor conditions. Typical finished parts include outdoor structural composite panels, vehicle exterior composite components, wind‑energy composite parts, and heavy‑duty bonding assemblies operating in cold regions. This silicone CSR masterbatch fits multiple composite manufacturing processes, including vacuum resin infusion, hand‑lay‑up lamination and prepreg curing. It is highly recommended for epoxy formulations where both low‑temperature toughness and long‑term anti‑weathering performance are mandatory requirements.

Storage & HandlingStore MX‑962 in tightly sealed original drums within a cool, dry warehouse. Recommended storage temperature is 15‑25℃. Avoid prolonged storage under high‑temperature surroundings which may result in slow viscosity increase. Low‑temperature storage will raise fluid viscosity; gentle gradual warming before usage is acceptable. Keep the material protected from direct sunlight. Once the drum is opened, reseal the container promptly to prevent moisture contamination. Guarantee sufficient local ventilation during material transfer and epoxy compounding operations. Operators must wear chemical‑resistant gloves, safety goggles and protective clothing to prevent direct skin and eye contact with liquid epoxy resin.

Why Choose SupplierWe supply stable‑quality alternative grade for MX‑962 silicone core‑shell epoxy toughener targeting structural adhesive and outdoor composite manufacturers. Complete TDS and MSDS documents are available for export business. Both bulk drum shipment and small trial‑run packaging options are supported. Our material helps overseas factories to develop high‑performance epoxy formulations with excellent low‑temperature flexibility and long‑term weather‑resistant properties.

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Silicone Core-Shell Epoxy Toughener MX-962, Silicone Rubber Core Predispersed in Epoxy for Low-Temp Flexibility Weatherability

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Jishengya Technology

Shenzhen Jishengya Technology Co., Ltd. is located in Shenzhen, a special economic zone, and is a comprehensive technology enterprise integrating independent R&D, production and sales.