Exablend® PC GF30-930 — glass-filled polycarbonate 30% GF

Description

Exablend® PC GF 930 — glass-filled polycarbonate with 30 % short-cut glass fiber from Material Wizard. An injection-molding compound on a polycarbonate matrix with GF reinforcement and a compatibilizer package for strong fiber-to-matrix adhesion. Designed for structural parts that require increased stiffness (modulus 6–7 GPa), dimensional stability under thermal cycling, low thermal expansion, and impact toughness combined with high heat resistance.

Exablend® PC series — where GF 930 fits

• Exablend® PC 900 — base transparent V-2 indoor grade (molding of transparent parts)
• Exablend® PC 901 — UV-stabilized transparent V-2 outdoor grade
• Exablend® PC GF 930 — glass-filled for structural loads (this page)
• Exablend® PC/ABS 965 — PC+ABS blend for parts with complex geometry

What 30 % GF reinforcement adds to polycarbonate

• Tensile modulus: 6500–7500 MPa vs 2400 MPa for unfilled PC — a threefold increase.
• Thermal expansion (CTE): reduced from 70 × 10⁻⁶ K⁻¹ (PC) to 25–30 × 10⁻⁶ K⁻¹ (PC + 30 % GF) — close to metals, important for hybrid metal-polymer parts.
• Dimensional stability: creep under load at 100 °C is 4–5 times lower than for unfilled PC.
• HDT/A (1.8 MPa): rises to 135–145 °C vs 125 °C for unfilled PC — a wider operating temperature range.
• Trade-off: transparency is lost (the material becomes opaque) and impact strength decreases (from 65 to 8–12 kJ/m²) — the typical compromise of GF-reinforced amorphous plastics.

Advantages

• High modulus of 6–7 GPa — structural stiffness close to aluminum on a weight-specific basis
• Low thermal expansion — critical for hybrid metal-polymer parts (cameras, optical systems)
• High dimensional stability under thermal cycling at -40 … +120 °C
• Low creep under load — long-term service at 100 °C without significant deformation
• Dimensionally stable under humidity changes (water absorption 0.15 % vs 1.5 % for PA66 GF30)
• Good adhesion to metals via mechanical interlock — for overmolding applications
• Colorable to standard RAL/Pantone shades

Limitations — honestly

• Opaque. Not for optical applications — for transparent structural parts use unfilled PC or the Makrolon LQ series
• Notched impact strength reduced to 8–12 kJ/m² — not for parts under high impact loads
• Brittle failure behavior — design for creep, not for impact energy
• Anisotropy of shrinkage and modulus along fiber flow lines — requires a carefully engineered gate, especially for thin-walled and asymmetric parts
• Visible fiber surface on thin walls (white streaks) — cosmetic applications require texturing or painting
• High processing temperature (melt 290–320 °C) — hot-runner tooling, stainless steel components
• Mandatory drying before processing: 120 °C, 4–5 h to <0.02 % moisture
• Base grade is HB — V-0 requires separate FR grades (on request)

Target applications

Electrical engineering: structural switchgear housings, chassis and frames for power electronics, medium-voltage device insulators, contactor and starter housings.

Electronics and instrumentation: rigid chassis for high-precision instruments, housings for optical devices and cameras (where CTE is critical for alignment), optical stabilization brackets, frames for 5G/mmWave antenna systems.

Industrial equipment: structural parts of machine tools and automated lines with stiffness and thermal stability requirements, precision sensor housings, linear module guides.

Transport: structural parts of automotive electronics, control unit housings, mounting brackets for electronic modules in the engine bay (subject to the temperature limit).

Aerospace and defense (secondary structures): mounting brackets, auxiliary equipment housings, power connector insulators, structural parts without primary-structure requirements.

Global equivalents

Parametrically comparable injection-molding PC GF30 grades: Covestro Makrolon® 8035 / 8345, SABIC LEXAN™ 3412R / 3413R, Trinseo CALIBRE™ 5031-30, Mitsubishi Iupilon™ GS-3030 R, Teijin Panlite™ G-3430R. Exablend® PC GF 930 is offered as a localized alternative with flexibility in batch size (from 25 kg), MFR, color and optional additives (UV, FR, conductive).

The stated values are measured by in-house methods close to the corresponding ISO and GOST standards. This information is for reference only and does not constitute an official batch data sheet. Please request the TDS and MSDS for a specific batch before industrial use.