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IOTA Releases IOTA 107 Series High-Viscosity Hydroxy-Terminated PDMS: A Comprehensive Technical Parameter Analysis

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1. Product Introduction
IOTA's newly launched IOTA 107 V150000-V550000 series is a strictly controlled linear, hydroxy-terminated polydimethylsiloxane. Its molecular structure underpins its superiority as a high-performance intermediate, particularly suited for applications requiring high-viscosity base polymers.

2. Detailed Technical Parameter Comparison
The table below clearly lists the key technical specifications for each grade within the series, for reference by engineers and R&D personnel:

Property V150000 V250000 V350000 V450000 V550000
Appearance Colorless, transparent liquid Colorless, transparent liquid Colorless, transparent liquid Colorless, transparent liquid Colorless, transparent liquid
Viscosity (25°C, mm²/s) ≈152,000 ≈250,000 ≈330,000 ≈450,000 ≈520,000
Volatile Content (150°C, 3h, %) ≤2 ≤2 ≤2 ≤2 ≤2
Surface Cure Time (h) ≤2 ≤2 ≤2 ≤2 ≤2

3. Key Product Features

  • High Viscosity & Stability: A wide and stable viscosity range offers great flexibility for formulation design.

  • Low Volatile Content: Helps reduce weight loss and shrinkage of finished products under high-temperature service conditions, enhancing reliability.

  • Fast Curing: Enables rapid surface curing in the presence of suitable cross-linkers, improving production efficiency.

  • Reactive End Groups: The hydroxy termination provides the capability for further chemical modification, expanding application potential.

4. Packaging & Storage Information

  • Standard Packaging: 200 kg steel-plastic composite drums or iron drums, net weight 190 kg.

  • Storage Conditions: Must be stored in the original, sealed containers in a cool, dry place below +30°C.

  • Shelf Life: 18 months from the manufacturing date. Please always check the batch number and expiration date on the packaging upon receipt and before use. Performance cannot be guaranteed beyond the shelf life.

5. Primary Application Directions
This product is an ideal raw material for preparing:

  • High-performance architectural silicone sealants

  • Chemical fiber spinning oils and textile softening agents

  • Other specialty chemical formulations requiring high-viscosity hydroxy silicone oil.

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