Glass-Filled vs Unfilled Nylon is a common design decision when balancing stiffness, impact behavior, and molding performance.
For GF15, GF30 and higher reinforcement levels, use our glass-filled nylon grade guide; this page focuses on whether reinforcement is needed in the first place.

Adding glass fibers to nylon dramatically changes its performance characteristics. While unfilled nylon offers excellent toughness and processability, glass-filled grades deliver substantially higher strength, stiffness, and thermal stability.
엔지니어링 및 조달 팀을 위해
Does This Nylon Part Need Glass Reinforcement?
Glass-filled nylon increases stiffness and dimensional control, but it can reduce impact toughness, change shrinkage and increase mold wear. Use reinforcement only when the drawing and load case justify it.
- Use unfilled nylon for toughness, snap fits and smoother surfaces
- Use glass-filled nylon for stiffness, creep control and structural loads
- Review fiber direction, gate location, warpage and cosmetic zones together
Request a filled vs unfilled nylon review → 나일론 사출 성형 서비스 보기
What Is Glass-Filled Nylon?
Glass-filled nylon is a composite material consisting of nylon resin reinforced with short glass fibers. The most common grades contain 15%, 25%, 30%, or 50% glass fiber by weight.
기계적 특성 비교
| 속성 | PA6 (충진제 미첨가) | PA6 GF15 | PA6 GF30 | PA6 GF50 |
|---|---|---|---|---|
| 인장 강도(MPa) | 75 | 120 | 170 | 210 |
| 굴곡 탄성률(GPa) | 2.7 | 5.5 | 8.5 | 14.0 |
| 1.8 MPa에서의 HDT (°C) | 65 | 180 | 195 | 210 |

치수 안정성
Glass fibers reduce the material’s coefficient of linear thermal expansion (CLTE) by 50-70%, bringing it closer to metals like aluminum.

처리 고려 사항
Glass-filled nylon requires: higher melt temperatures, higher injection pressures, hardened molds due to abrasive wear, and careful gate design for fiber orientation.

비용 관련 고려 사항
GF30 provides the best balance of cost and performance for most applications. It’s the most widely used glass-filled grade.
신청 안내서
Choose Unfilled Nylon When:
- 내충격성과 인성은 매우 중요합니다
- Parts need good surface finish
- Snap-fits or living hinges are required
- Cost is the primary concern
Choose Glass-Filled Nylon When:
- High strength and stiffness are needed
- Dimensional stability under heat is critical
- Metal replacement is the goal
- Precision tolerances must be maintained
당사의 역량
~을 넘는 CNC 기계 300대, 우리는 ○○ 이상 생산하며 하루 10,000개 허용 오차가 ±0.005mm. 다음을 접수합니다 최소 주문 수량(MOQ): 1개부터, 배송 기간은 ~ 24시간에서 15일. We supply nylon in all grades—unfilled, GF15, GF30, and GF50. 24시간 이내에 견적을 받아보세요.
이 프로젝트에 맞춰 어떤 나일론 플라스틱을 맞춤 제작할 수 있는지
나일론 플라스틱은 소재 개질과 제품 설계, 금형 설계 및 제작, 사출 성형, CNC 가공, 3D 프린팅을 결합한 기술입니다. 적합한 적용 범위는 일반적인 소재 명칭만으로는 단정할 수 없으며, 도면과 사용 조건을 바탕으로 선정됩니다.
| 사용자 지정 영역 | 검토할 옵션 | 필요한 정보 |
|---|---|---|
| Nylon family | PA6, PA66, PA12 and suitable reinforced alternatives | Heat, moisture, impact, wear and cost requirements |
| Reinforcement | Unfilled, moderate glass loading or higher-stiffness grade review | Deflection limit, load direction and surface requirement |
| Part design | Rib, boss, gate, draft, warpage and snap-fit DFM | CAD, mating parts, cosmetic zones and critical tolerances |
| Production package | Material review, mold making, molding and inspection planning | Sample quantity, annual volume and required records |
견적 요청(RFQ) 체크리스트
- Current material and the reason a change is being considered
- Load, impact, heat, moisture and wear conditions
- Critical dimensions, flatness and surface requirements
- Gate or weld-line restrictions and assembly information
- CAD, quantity, annual volume and target tooling life
DFM 지원, NDA 체결, 재료 또는 조성 관련 문서 및 검사 요건 등은 견적 협의 과정에서 논의할 수 있습니다. 제공 가능 여부는 프로젝트 범위와 합의된 품질 계획에 따라 달라집니다.
검토 단계에서 양산 단계까지
- 정의: 도면, 애플리케이션, 환경 및 볼륨을 공유합니다.
- 리뷰: 재료, 공정, DFM 및 검증 관련 위험 요소를 비교한다.
- 검증: 필요에 따라 시제품, 3D 프린팅, CNC 가공 또는 시제품 금형을 활용하십시오.
- 제작: 합의된 점검이 완료된 후에야 금형이나 생산을 진행해야 합니다.
Where PA6-GF20 Fits in the Selection
Buyers often compare only unfilled nylon with a 30% glass grade, but the intermediate loading can be the better production choice. PA6-GF20 is worth evaluating when an unfilled grade deflects or shrinks too much, while the cost, brittleness, surface texture, fiber orientation, or tooling burden of a higher loading is not justified.
| Decision | Unfilled PA6 | PA6-GF20 | PA6-GF30 |
|---|---|---|---|
| Primary reason to select | Toughness, fatigue, wear, and surface quality | Balanced stiffness, shrinkage control, and moldability | Higher stiffness and lower directional shrinkage |
| Typical tradeoff | More deflection and moisture-driven movement | Moderate anisotropy and visible fiber texture | More warpage sensitivity, brittleness, abrasion, and cost |
| Validation focus | Conditioned fit, creep, and impact | Gate direction, weld lines, warpage, and conditioned dimensions | Flow orientation, local stress, tool wear, and critical surface acceptance |
Compare the exact matrix and grade in the expected moisture condition. A PA6-GF20 result should not be substituted directly for PA66-GF20, and a headline dry tensile value should not replace molded-part testing. For a higher loading, review the PA6-GF30 product route; for a different reinforcement family, use the PA6-CF30 route only when its specific stiffness or other qualified benefit is required.
자주 묻는 질문
Can the glass-fiber loading be customized for the part?
The team can review different reinforcement levels, but the choice should be tied to deflection, impact, warpage, flow length, appearance and tool wear rather than selecting the highest percentage by default.
Is unfilled nylon better for snap fits and impact?
Often it is because unfilled nylon generally retains more ductility. The correct answer depends on beam strain, conditioning, wall thickness, assembly cycles and the exact resin grade.
Can color and surface finish be controlled on glass-filled nylon?
Color and mold texture can be reviewed, but exposed fibers and flow orientation may limit the achievable appearance. Identify cosmetic zones and approved reference samples in the RFQ.
What information is needed for a filled-versus-unfilled review?
Send the CAD and drawing, current grade, load and environment, critical fits, appearance target, annual volume and any existing failure or warpage data.
관련 읽기
- 긴 유리 섬유와 짧은 유리 섬유 강화 나일론: 전체 성능 가이드
- 자외선 안정화 나일론: 아웃도어 내후성 성능에 대한 완벽한 가이드
- PA6 나일론: 속성, 애플리케이션 및 수정에 대한 전체 가이드
한눈에 보기

| 결정적 순간 | 유리 섬유 강화 나일론 | Unfilled Nylon | 구매자 참고 사항 |
|---|---|---|---|
| 강성 | 더 높음 | Lower | Use GF when deflection must be controlled |
| 왜곡 위험 | 더 높음 | Lower | Part geometry and gate design matter more with GF |
| Wear / strength | Better for many structural parts | More flexible | Check load direction and thickness |
| 최적의 용도 | Structural molded parts | General-purpose parts | Match filler to actual loading and cost target |
왜 나일론 플라스틱을 선택해야 할까요?
Nylon Plastic helps buyers decide when reinforcement is worth the added cost, warp risk and tooling sensitivity of a filled nylon grade.
Request a Filled Nylon Review
Send the part use case and tolerance target for a filled versus unfilled nylon check.


