Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

DOW SYL-OFF SL 18 Release Modifier

DOW SYL-OFF SL 18 Release Modifier is a silicone-based surface additive from Dow’s SYL-OFF® series designed to enhance mold release, reduce friction, and improve surface slip in coatings, inks, and adhesives. It offers excellent compatibility, low migration, and stable performance in both solvent- and water-borne systems without affecting substrate adhesion or clarity.
  • dow syl off sl 18 release modifier_fe772f3d
  • dow syl off sl 18 release modifier_fe772f3d

Features Of DOW SYL-OFF SL 18 Release Modifier

  1. High-efficiency silicone-based release modifier for controlled surface energy reduction.

  2. Enables excellent demolding performance in high-temperature and high-pressure molding processes.

  3. Compatible with a broad range of thermoset resins, including epoxy, polyester, and vinyl ester.

  4. Provides consistent, non-migrating release performance without compromising substrate adhesion or paintability.

  5. Low-volatility formulation supports reduced VOC emissions and improved workplace safety.

Typical Applications Of DOW SYL-OFF SL 18 Release Modifier

  1. Fiberglass-reinforced plastic (FRP) composites manufacturing.

  2. Wind turbine blade tooling and mold release systems.

  3. Automotive body panels and structural composite parts production.

  4. Rail and marine composite components requiring repeatable demolding cycles.

  5. Industrial laminates and pultruded profiles with demanding surface finish requirements.

Specifications Of DOW SYL-OFF SL 18 Release Modifier

Chemical TypeModified polydimethylsiloxane (PDMS)
Product FormLiquid concentrate
AppearanceClear to slightly hazy, colorless to pale yellow liquid
Primary ApplicationsMold release agent for thermoset composites
Key FeaturesNon-transfer, heat-stable, low-residue
BenefitsExtended mold life, reduced post-mold cleaning, improved part surface quality
Recommended DiluentIsopropyl alcohol (IPA), methyl ethyl ketone (MEK), or approved hydrocarbon solvents
Storage ConditionsStore in original sealed container at 10–30 °C; protect from freezing and direct sunlight


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