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Excellent compatibility with standard styrene monomers for consistent curing performance.
High reactivity enabling rapid gel time and efficient production cycle times.
Superior mechanical strength and dimensional stability in cured composites.
Low viscosity (at 25°C) facilitating easy handling, impregnation, and mold filling.
Good weather resistance and UV stability suitable for outdoor applications.
Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.
Pultruded profiles for structural supports and corrosion-resistant frameworks.
Marine components including boat hulls, decks, and fenders.
Automotive body panels and under-hood composite parts.
Industrial grating, ductwork, and corrosion-resistant linings.
| Chemical Type | Unsaturated polyester resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow, homogeneous liquid |
| Viscosity (25°C) | 350–450 mPa·s |
| Acid Value | 18–22 mg KOH/g |
| Gel Time (with 1% MEKP at 25°C) | 12–16 minutes |
| Solids Content | 99.5% minimum |
| Styrene Content | 38–42 wt% |
Q1: What is the primary application field for YTDB-102 Polyester Resin?
A: YTDB-102 is specifically formulated for high-performance unsaturated polyester systems used in composite manufacturing, including fiberglass-reinforced plastics (FRP) for marine, construction, and transportation applications. It offers balanced reactivity, mechanical strength, and surface cure characteristics suitable for both open-mold and closed-mold processes.
Q2: How does YTDB-102 differ from standard orthophthalic polyester resins?
A: YTDB-102 features a modified isophthalic/neo-pentyl glycol backbone, delivering enhanced hydrolytic stability, improved resistance to blistering in humid or marine environments, and superior adhesion to glass reinforcements compared to conventional ortho-based resins. Its molecular design also supports better pigment and filler compatibility.
Q3: What type of initiators and accelerators are recommended for curing YTDB-102?
A: YTDB-102 is compatible with standard organic peroxide initiators such as methyl ethyl ketone peroxide (MEKP), and works effectively with cobalt naphthenate or cobalt octoate accelerators. Cure profiles can be adjusted by selecting appropriate initiator types and concentrations based on ambient conditions and process requirements.
Q4: Is YTDB-102 suitable for use in gel coats?
A: Yes — YTDB-102 is commonly employed in high-quality gel coat formulations where excellent surface hardness, gloss retention, and resistance to microcracking are required. Its low styrene emission profile and controlled viscosity support smooth application and consistent film formation.
Q5: How should YTDB-102 be stored to maintain optimal performance?
A: Store YTDB-102 in tightly sealed containers at temperatures between 15°C and 25°C, away from direct sunlight and sources of heat or ignition. Avoid prolonged exposure to freezing conditions or excessive humidity. For best results, use within 6 months of receipt and follow good inventory management practices (e.g., first-in, first-out).
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E-mail: wangxingqiang@ericwchem.com
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