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High reactivity with standard peroxide initiators for rapid gelation and efficient production cycles.
Excellent mechanical strength and dimensional stability in cured laminates.
Low volatile organic compound (VOC) content, supporting compliance with industrial emission guidelines.
Good compatibility with common fillers, pigments, and glass fiber reinforcements.
Consistent batch-to-batch performance ensured by strict in-process quality control.
Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.
Marine deck components and hull lay-up in boat building.
Industrial corrosion-resistant ducting and exhaust systems.
Wind turbine blade structural matrices (non-structural core layers).
Architectural cladding panels and decorative molded profiles.
| Chemical Type | Unsaturated orthophthalic polyester resin |
| Product Form | Liquid, ready-to-use |
| Appearance | Clear to pale yellow viscous liquid |
| Viscosity (25°C, mPa·s) | 350–450 |
| Acid Value (mg KOH/g) | 12–18 |
| Solid Content (% w/w) | 99.5–100.0 |
| Density (25°C, g/cm³) | 1.12–1.16 |
| Styrene Content (% w/w) | 38–42 |
Q1: What is the primary application of TB-356N in polyester resin systems?
A: TB-356N is specifically formulated as a reactive diluent and viscosity modifier for unsaturated polyester resins, commonly used in gel coats, laminating resins, and casting applications where improved flow, reduced styrene emission, and enhanced surface finish are required.
Q2: How does TB-356N compare to standard styrene in terms of volatility and handling safety?
A: TB-356N exhibits significantly lower vapor pressure than styrene, resulting in reduced volatility during processing. This contributes to improved workplace air quality and lower odor impact, though standard industrial hygiene practices—including adequate ventilation and personal protective equipment—remain essential.
Q3: Is TB-356N compatible with common peroxide initiators used in polyester curing?
A: Yes, TB-356N is compatible with standard free-radical initiators such as methyl ethyl ketone peroxide (MEKP) and benzoyl peroxide (BPO), and does not adversely affect gel time or cure profile when incorporated within typical formulation ranges.
Q4: Can TB-356N be used in food-contact or potable water applications?
A: TB-356N is not pre-qualified for direct food-contact or potable water applications. Its suitability for regulated end uses must be confirmed through full system evaluation—including final cured resin testing—by the formulator in accordance with applicable regional regulatory requirements.
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E-mail: wangxingqiang@ericwchem.com
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