Mosu-fiber MB disperses fine GW in resin so that stiffness and mouldability can be evaluated from low addition rates.
Why begin at low addition rates
A typical starting point is 3–5% GW in the finished part. Compare unfilled, 3% and 5% under the same conditions to balance benefit, cost and equipment impact.
- Unfilled control
- Properties and appearance
- Equipment and cost impact
Stiffness and dimensional stability
Dispersed fine fibres can affect stiffness, heat resistance, warpage and sink. The optimum amount depends on geometry and required performance.
Flow and surface appearance
Evaluate filling of thin or complex features together with fibre visibility and surface roughness. Tooling, injection speed and melt temperature must be controlled.
Cooling time and cycle time
If GW increases heat-deflection temperature, a higher demoulding temperature may shorten cooling. The 20–30% example shown in the mockup is condition-specific and requires validation for each part.
FAQ
Frequently asked questions
01What loading should we test first?＋
For PP, compare unfilled, 3% and 5% GW first. Higher loading can be considered when greater stiffness is required.
02Will cycle time always be shorter?＋
No. Resin, existing fillers, tooling, geometry and moulding conditions all affect the result, so a machine trial is required.
03Will the surface become rough?＋
Low loading and dispersion control can reduce the impact, but the actual part should be checked for roughness and appearance.