DPM-9933F12  Single-end dual-hydroxyl silicone prepolymer

Overview

• DPM-9933F12 is a single-end, dual-hydroxyl functionalized silicone prepolymer with excellent solubility properties; it can react with groups such as –NCO, –NH₂, and –COOH, and is primarily used for the silicone modification of PU, TPU, modified polyester resins, acrylic resins, etc.

Typical Characteristic

project	unit	data
appearance	/	Colorless to pale yellow liquid
solid Content	%	93±3
refractive index（25℃）	/	1.4320±0.0050
viscosity（25℃）	CPS	200-600
hydroxyl value	mgKOH/g	60
formula weight	/	2200

Product Features

• High reactivity; can replace a portion of diols.
• It offers certain anti-adhesion, anti-contamination, and graffiti-resistant properties.
• Low surface tension, promoting leveling
• Exhibits good compatibility and readily stabilizes bubbles, making it suitable for use in foaming systems.

Application Area

• Synthetic silicone-modified polyurethane: It is recommended to be added together with polyol monomers and react with isocyanate monomers at approximately 85°C. During the reaction with IPDI, the temperature should be elevated.
• Synthetic silicone-modified TPU and polyester resins: Generally added at a concentration of 0.2–0.5% to TPU polymer systems, they provide demolding and anti-adhesion effects; when added at 3–10%, they offer excellent hydrophobicity, stain resistance, and a silicone-like texture, and can be reacted simultaneously with polyols. For esterification reactions, they may replace part of the polyols; stepwise reaction is recommended for optimal performance.
• 2K polyurethane baked paint and amino baked paint: The carboxyl groups exhibit high reactivity; under high temperatures, they can participate in reactions between-NCO groups and amino groups, providing smoothness and stain resistance through the free silicone segments on the polymer surface.

Safety, Packaging and Storage

• Store at room temperature; do not open until use. Store in the original packaging. Shelf life: 12 months from the date of manufacture. Not classified as a hazardous material.
• 25kg plastic drum packaging

Packaging Images

Price

Disclaimer：The above information is provided based on the specific characteristics of our products and is derived from existing knowledge; it is intended solely as an introduction and usage recommendation for our products and does not constitute a warranty regarding the specific characteristics of our products when used in particular applications. Therefore, we assume no responsibility for this information or recommendations.