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SMC/BMC Resin
SMC/BMC — Sheet & Bulk Molding Compound
High-performance unsaturated polyester resins for sheet and bulk molding compound processes. Controlled thickening, fast molding cycles, and excellent mechanical and electrical properties for electrical parts, automotive components, sanitary ware, and cabinets.
SMC
BMC
Compression Molding 模压
Product Overview
Our SMC/BMC resin family delivers controlled thickening, fast molding cycles, and excellent mechanical & electrical properties for compression molding applications. The series includes medium-reactivity grades (AT-SMC-03, AT-SMC-04) for general-purpose SMC/BMC, high-reactivity grade AT-SMC-05 with elevated HDT ≥85°C, low-shrinkage AT-SMC-02 for dimensionally critical parts, the premium ISO NPG grade AT-SMC-01 with HDT ≥109°C for outdoor weather resistance, and the AT-SMC-06 low shrink additive that completes the system for maximum dimensional stability.
Technical Specifications
| Grade | Viscosity (mPa·s, 25°C) |
Gel Time (min, 25°C) |
Tensile Strength (MPa, ≥) |
Flexural Strength (MPa, ≥) |
HDT (°C, ≥) |
Features |
|---|---|---|---|---|---|---|
| AT-SMC-03 | 1300–2000 | 8–16 | 60 | 90 | 75 | SMC/BMC / 中等反应性 / 增稠稳定 |
| AT-SMC-04 | 1300–2000 | 8–16 | 60 | 90 | 75 | SMC/BMC / 中等反应性 / 增稠稳定 / 强度高 |
| AT-SMC-05 | 1300–2000 | 6–12 | 60 | 90 | 85 | SMC/BMC / 高反应性 / 热变形温度高 |
| AT-SMC-02 | 600–800 | 6–10 | 60 | 90 | 75 | SMC/BMC / 低收缩 / 尺寸稳定 |
| AT-SMC-01 | 1900–2100 | 15–20 | 58 | 96 | 109 | 间苯新戊二醇型 / SMC/BMC / 增稠稳定 / 耐水耐候 |
| AT-SMC-06 | 150–200 | — | — | — | — | 低收缩剂 / SMC/BMC配套 / 尺寸稳定性好 |
* AT-SMC-01 solid content 65-71%. Test conditions: 25°C, standard MEKP promoter. Contact us for full TDS.
▶▼ Complete Technical Data Sheet (TDS) 完整技术数据
| 牌号 | Acid Value (mgKOH/g) |
Solid Content (%) |
Stability @80°C 80℃稳定性 (h) |
Curing System | Packaging | Storage |
|---|---|---|---|---|---|---|
| AT-SMC-03 | 19-25 | 62-68 | ≥24 | 100g树脂 + 2g 50%过氧化苯甲酰 | 220KG金属桶 | 25℃下3个月，30℃下1.5个月 |
| AT-SMC-04 | 15-20 | 62-68 | ≥24 | 100g树脂 + 2g 50%过氧化苯甲酰 | 220KG金属桶 | 25℃下3个月，30℃下1.5个月 |
| AT-SMC-05 | 19-25 | 62-68 | ≥24 | 100g树脂 + 2g 50%过氧化苯甲酰 | 220KG金属桶 | 25℃下3个月，30℃下1.5个月 |
| AT-SMC-02 | 19-25 | 62-68 | ≥24 | 100g树脂 + 2g 50%过氧化苯甲酰 | 220KG金属桶 | 25℃下3个月，30℃下1.5个月 |
| AT-SMC-06 | 4-6 | 40-50 | ≥24 | 低轮廓添加剂，SMC/BMC体系 | 200KG金属桶 | 25℃下3个月，30℃下1.5个月 |
| AT-SMC-01 | — | — | ≥24 | 低轮廓添加剂，SMC/BMC体系 | 200KG金属桶 | 25℃下3个月，30℃下1.5个月 |
Data tested per GB standards at 23±2°C, 50±5% humidity. Curing conditions may vary by application. Contact us for detailed processing guidance.
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