MgO-Thickened VE Resin for Structural SMC Applications
Components based on Atlac® XP 810 X offer high mechanical properties and superior heat resistance. In addition, they exhibit excellent chemical resistance. With Atlac® XP 810 X resin, you can manufacture robust and durable parts using glass fiber and carbon fiber.
Benefits
High
mechanical strength, high heat resistance,
compatible with glass and carbon fibers,
good chemical resistance,
design flexibility
Main Applications
This resin is used for components in trucks and passenger cars located near internal combustion engines, such as oil pans and valve covers. Atlac® XP 810 X has a high molecular weight, making it easy to thicken with MgO. When combined with Palapreg® H814-01, the SMC can be uniformly colored.
Product Specifications
| Properties | Value | Unit | Test Method |
|---|---|---|---|
| Appearance | Clear | - | TM 2265 |
| Lick-Gordner Color Scale | 0–3.5 | G | TM 2017 |
| Viscosity at 23°C, 100 s⁻¹ | 2000–2500 | mPa·s | TM 2013 |
| Viscosity after 120 minutes | 40,000–145,000 | mPa·s | TM 2914B |
| Acid number | 22–25 | mg KOH/g | TM 2401 |
| Gel time | 145–180 | s | TM 2261 |
| Peak Time | 180–240 | s | TM 2261 |
| Peak Temperature | 260–280 | °C | TM 2261 |
| Batch Peroxide | - | - | TM 2999 1 |
| Batch Accelerator | - | - | TM 2999 2 |
| Moisture Content | 0.05–0.09 | ppm | TM 2350 |
Typical Properties of Liquid Resin
| Property | Value | Unit | Test Method |
|---|---|---|---|
| Density at 20°C | 1100 | kg/m³ | TM 2160 |
| Stability: Solid, dark color at 25°C | 3 | months |
Typical Properties of Unfilled Castings
| Properties | Value | Unit | Test Method |
|---|---|---|---|
| Tensile Strength | 81 | MPa | ISO 527-2 |
| Tensile Modulus | 3.6 | GPa | ISO 527-2 |
| Elongation at break | 3.5 | % | ISO 527-2 |
| Flexural strength | 155 | MPa | ISO 178 |
| Flexural modulus of elasticity | 3.7 | GPa | ISO 178 |
| Heat Deflection Temperature | 145 | °C | ISO 75 Ae |
| Impact Strength (Unnotched) | 13 | kJ/m² |
Typical Properties of Cured Reinforced Resin
| Property | Value | Unit | Test Method |
|---|---|---|---|
| Glass Content | 48 | % | ASTM D2584 |
| Tensile Strength | 170 | MPa | ISO 527-2 |
| Elongation at Break | 1.8 | % | ISO 527-3 |
| Flexural strength | 280 | MPa | ISO 178 |
| Flexural modulus | 13.5 | GPa | ISO 178 |
| Tensile modulus | 14 | GPa | ISO 527-2 |
Application Guide
Atlac® XP810X can be processed with Palapreg® Low-Profile Additive (LPA) to produce LS/LP SMC and BMC. Depending on the size of the molded part, it is recommended to add 300 to 600 ppm of p-benzoquinone to the system (calculated based on the UP resin plus LPA).