Amino‑Silane Modified Siliceous Earth is surface‑modified mineral filler as direct replacement for Aktifit PF115. Amino‑silane treatment optimizes the interface compatibility between mineral particles and polymer matrix. When incorporated into PU sealant and epoxy formulations, this filler delivers reliable thixotropic anti‑sagging property, enhances mechanical strength and improves bonding performance of cured sealant and casting epoxy.

Product Detail

Product Overview Amino‑Silane Modified Siliceous Earth (CAS 61790‑53‑2, Aktifit PF115 Equivalent) is natural siliceous earth modified with amino‑functional silane by surface coating treatment. The silane coupling agent improves wet‑out and interfacial adhesion between mineral powder and resin molecules. Within polyurethane sealant and epoxy systems, the modified filler builds up a physical network to offer stable thixotropic and anti‑sagging effect. It prevents vertical sagging during application. Meanwhile, it participates in interfacial cross‑linking to boost tensile strength, hardness and cohesive property of cured polymer. This mineral filler is suitable for one‑component and two‑component PU sealants, epoxy casting compounds and structural epoxy adhesive production.

Key Features ‑ Amino‑silane surface modification enhances compatibility with epoxy and polyurethane resin ‑ Provides effective thixotropic anti‑sagging performance for sealant and adhesive systems ‑ Reinforces mechanical strength and cohesive property of cured polymer compounds ‑ Reduces viscosity drift during storage of finished sealant products ‑ Direct functional equivalent grade for Aktifit PF115 surface‑modified mineral filler

Typical Technical Properties ‑ Chemical Type: Amino‑silane surface‑modified natural siliceous earth ‑ Appearance: Off‑white fine free‑flowing powder ‑ Particle Size: Refer to TDS ‑ Bulk Density: Refer to TDS ‑ Silane Treatment Level: Refer to TDS

Applications ‑ Polyurethane sealant plant: Thixotropic reinforcing filler for construction and industrial PU sealant ‑ Epoxy adhesive formulation: Functional mineral filler for two‑component structural epoxy adhesive ‑ Epoxy casting system: Reinforcing thixotropy agent for epoxy potting compounds ‑ Adhesive & sealant compounding workshop: Raw surface‑modified mineral filler for resin‑based formulations

Processing Recommendation Add amino‑silane modified siliceous earth during high‑speed dispersion under controlled temperature. Ensure sufficient de‑aeration after mixing. Adjust loading dosage according to target thixotropy and mechanical requirements. Complete lab trials before mass adhesive and sealant manufacturing.

Storage & Handling Store in cool, dry warehouse, strictly avoid moisture absorption. Reseal packaging after opening. Wear dust‑proof mask and protective gloves while handling fine mineral powder.

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Amino-Silane Modified Siliceous Earth CAS 61790-53-2 PU Sealant Epoxy Thixotropic Filler (Aktifit PF115 Equivalent)

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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.