LWRT Mold
Lightweight Reinforced Thermoplastic.
Superior Acoustics & Aerodynamics.
The Solution for Underbody Systems
LWRT (Lightweight Reinforced Thermoplastic) is a semi-finished composite sheet material consisting of a polypropylene matrix, glass fibers, and air content. When heated, the material "lofts" or expands, increasing its thickness up to 4 times while maintaining low density.
SUASE MOULD provides specialized low-pressure compression molds for LWRT. This technology is essential for manufacturing large-area automotive parts like underbody shields and wheel arch liners, where the combination of stiffness, low weight, and sound absorption is critical.
Acoustic Performance
"The porous core structure of LWRT acts as an excellent sound absorber, significantly reducing road noise entering the vehicle cabin compared to solid plastic shields."
The Molding Process
Low pressure compression to preserve the lofted structure.
1. Material Loading
LWRT sheets are clamped onto a transport frame.
2. IR Heating
Sheets pass through an IR oven. The material expands (lofts) to increase thickness.
3. Low Pressure Molding
The lofted sheet is pressed in a cold mold. Compression is controlled to vary density (hard edges, soft core).
4. Trimming
Final part contour is trimmed using water-jet or ultrasonic cutting.
Mold Capabilities
Designed for large-area parts with variable density control.
LWRT Mold Specs
| Mold Material | Aluminum (Proto) / Steel P20 (Series) |
| Cooling | Integrated Water Lines |
| Pinch Off | Hardened Steel Inserts (For edge sealing) |
| Mold Size | Up to 3.5m length (Full Underbody) |
| Cycle Time | 45s - 60s |
Variable Density
Our molds utilize gap management to create parts with varying densities: highly compressed, rigid mounting points and low-density, acoustic-absorbing central areas.
Aerodynamic Surface
Mold surfaces are textured to optimize airflow under the vehicle, reducing drag coefficient (Cd) and improving fuel efficiency/range.
Durability
Robust construction to withstand the pressures of compressing the fiber matrix and ensuring long tool life even with abrasive glass fibers.
LWRT Applications
Lightweight protection for modern vehicles.
Underbody Shields
Full-length aero shields. Protects engine and battery from stones while reducing road noise and drag.
Wheel Arch Liners
Outer wheel liners that absorb tire noise and resist water/mud impact.
Interior Trim
Headliners and parcel shelves. Utilizing LWRT's stiffness and soft-touch capability for interior comfort.
Expertise in Aerodynamic Tooling
"Optimize your vehicle's range and comfort with SUASE's LWRT molding solutions. Contact us fortechnical consultation."
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