This sealant toughener adopts non-phthalate and high molecular weight polyester plasticizer. It delivers excellent compatibility with acrylic, polyurethane and silicone sealant matrix. It enhances elasticity and low-temperature flexibility, preventing hardening and cracking under cold environments. The high molecular structure effectively suppresses plasticizer migration and surface blooming. It is widely used for formulating durable acrylic, PU and silicone sealants.

Product Detail

Product Detail PageChemical IdentityThe toughener consists of non-phthalate ester and high-molecular-weight polyester plasticizer. It is non-reactive additive with long polyester molecular chains. The long chain structure reduces volatility and migration risk. It has good miscibility with acrylic polymer, PU prepolymer and silicone polymer. It can be added during base polymer mixing stage under standard sealant production conditions.

Key PerformanceIt increases elongation and flexibility of cured sealant at low temperature. It minimizes plasticizer migration, oil bleeding and surface blooming. It improves stress absorption and crack resistance under thermal cycling. It maintains stable adhesion on various construction substrates. It optimizes paste workability without affecting curing speed of sealant. It meets phthalate-free requirements for environmental-friendly sealant formulations.

ApplicationsSuitable for acrylic sealant, PU sealant and silicone sealant. Typical applications include construction joint sealant, window and door sealing, waterproof sealant, assembly caulking and general industrial sealing products. It is ideal for sealant formulations requiring low migration, cold resistance and long-term stability.

Storage & HandlingStore the product in sealed original containers in cool, dry and ventilated warehouse. Recommended storage temperature 10-30℃. Avoid direct sunlight, heat sources and high humidity. Prevent skin and eye contact, use proper protective equipment. Reseal containers tightly after opening to avoid contamination. Do not store together with strong oxidants.

Why Choose SupplierWe supply non-phthalate and polyester plasticizer sealant toughener for acrylic, PU and silicone sealant manufacturers. Complete TDS and MSDS documents are available for export. Bulk shipment and small trial orders are supported. Our toughener helps overseas factories produce low-migration sealants with outstanding low-temperature performance.

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Sealant Toughener, Non-Phthalate/Polyester Plasticizer for Acrylic PU Silicone Sealant Low-Temp Migration

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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.