Name: Dow DOWSIL 18 Additive Leveling Agent
Brand: Guangzhou Eric Wei Chemical Co., Ltd.

Features Of Dow DOWSIL 18 Additive Leveling Agent

Enhances surface uniformity and eliminates orange peel in silicone-based coatings and sealants.
Provides excellent compatibility with addition-cure and condensation-cure silicone systems.
Reduces surface tension without compromising pot life or cure kinetics.
Non-volatile and solvent-free formulation supports low-VOC and sustainable processing.
Improves substrate wetting on low-energy surfaces such as polyolefins and fluoropolymers.

Typical Applications Of Dow DOWSIL 18 Additive Leveling Agent

High-performance silicone release coatings for paper and film substrates.
Optical-grade silicone gels and encapsulants requiring defect-free surface finish.
Automotive RTV sealants where smooth bead appearance and adhesion consistency are critical.
Electronics encapsulation compounds demanding bubble-free, planarized interfaces.
Architectural silicone sealants requiring uniform extrusion and post-cure aesthetics.

Chemical Type	Modified polyether-modified siloxane
Product Form	Clear, viscous liquid
Appearance	Colorless to pale yellow, homogeneous liquid
Primary Applications	Leveling agent for addition-cure and condensation-cure silicones
Key Features	Surface tension reduction, non-migrating, thermally stable up to 200 °C
Benefits	Improved flow/leveling, reduced defects, enhanced optical clarity
Recommended Use Level	0.1–1.0 wt% relative to base polymer
Storage Conditions	Store in original sealed container at 5–30 °C; protect from moisture

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