WACKER L 653 Silicone Oil

Features Of WACKER IM 15 Silicone Oil

1. Precise difunctionalization - One carbinol group at each chain end, stable functionality of 2

2. Hydrolysis - stable structure - Alkylene spacers ensure functional group stability against hydrolysis

3. Crosslinking reactivity - Suitable for polyurethane, epoxy resin crosslinking systems to boost performance

4. Wide system compatibility - Adapts to solvent - based, solvent - free and partial water - based crosslinking formulas

5. Convenient processing - Easy to add and disperse, directly participates in polymerization or grafting reaction

Typical Applications Of WACKER IM 15 Silicone Oil

1. Coatings - Acts as a crosslinker to improve film adhesion, weather resistance and flexibility

2. Adhesives - Enhances bonding strength and aging resistance for metal, plastic and other substrates

3. Sealants - Improves elasticity and weather resistance for construction and electronic sealing applications

4. Composite materials - Modifies resins to enhance interface adhesion and mechanical properties of composites

5. Textile finishing - Crosslinks fabrics to improve wrinkle resistance, durability and tactile feel

Specifications Of WACKER IM 15 Silicone Oil

WACKER L 653 Silicone Oil – Frequently Asked Questions (FAQ)

Q1: What is the primary function of WACKER L 653 Silicone Oil in formulations?

A: WACKER L 653 Silicone Oil is a low-viscosity, non-reactive polydimethylsiloxane designed primarily as a surface modifier and processing aid. It improves substrate wetting, reduces surface tension, enhances slip and leveling, and helps suppress foam during manufacturing—especially in coatings, adhesives, and sealants.

Q2: Is WACKER L 653 compatible with common polymer systems such as acrylics, polyurethanes, and epoxy resins?

A: Yes, WACKER L 653 exhibits broad compatibility with many organic polymer systems, including waterborne and solventborne acrylics, polyurethanes, and epoxy-based matrices. Its non-reactive nature minimizes formulation risks, though compatibility testing under actual processing conditions is recommended to confirm stability and performance.

Q3: How should WACKER L 653 be incorporated into a formulation for optimal performance?

A: It is typically added during the late-stage mixing phase—after main binders and pigments are dispersed—to avoid excessive shear degradation or premature migration. Dosage depends on formulation requirements but generally ranges from 0.1% to 2% by weight relative to total formulation mass. Uniform dispersion ensures consistent surface effects without compromising film integrity.

Q4: Does WACKER L 653 affect the curing behavior or final film properties of reactive systems?

A: As a non-functional silicone oil, WACKER L 653 does not participate in crosslinking reactions and typically has minimal impact on cure kinetics when used at recommended levels. However, high concentrations may slightly reduce intercoat adhesion or surface hardness due to preferential migration—therefore, optimization trials are advised for critical end-use applications.