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G10 Composite – Laser Cutting, Waterjet & CNC Machining | Custom Parts with Instant Quote & Free Delivery Canada

G10

glass epoxy

Free Shipping Canada
orders over $250 excluding oversize parcels. please see details. 

MANUFACTURING PROCESSES OFFERED

WATERJET CUTTING​​​​​​

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At uMake.ca – Online Factory, we produce custom G10 composite parts with precision laser cutting, waterjet cutting, and CNC machining—ideal for electrical insulators, structural components, mechanical parts, jigs, fixtures, and industrial prototypes. G10 is a high-strength, fiberglass-reinforced epoxy laminate known for its excellent electrical insulation, chemical resistance, and dimensional stability, making it perfect for applications that demand durability and precision. Laser and waterjet cutting deliver clean, accurate profiles for intricate shapes, while CNC machining allows for precise features, holes, and cutouts with tight tolerances. With uMake.ca’s easy online quoting tool, you can upload your design and get instant pricing and lead time, and with fast, free shipping across Canada on eligible orders, your G10 composite parts arrive ready for assembly—no minimums and fast turnaround. Free Delivery Canada

G10 Properties & Composition

What is G10 and why is it specified for electrical and structural applications? G10 is a glass-fiber reinforced epoxy laminate — the same family as FR-4 (the fire-retardant variant used in PCBs). Layers of woven fiberglass cloth are impregnated with epoxy resin and cured under pressure, producing a rigid, high-strength composite with excellent electrical insulation properties, mechanical strength, and dimensional stability. G10 maintains its properties across a wide temperature range and resists moisture absorption far better than phenolic laminates. uMake cuts G10 via CNC routing and waterjet cutting. Instant quote at app.umake.ca.
What G10 thicknesses and grades does uMake stock? uMake stocks G10 from 1.5 mm to 25.4 mm. Natural (light green or yellow) G10 is the standard electrical grade; FR-4 (fire-retardant G10) is required for applications governed by flammability standards. Grades with different weave orientations (warp vs. fill direction mechanical properties) are available for structurally critical applications. Specify grade requirements at quoting@umake.ca. Standard G10 in common thicknesses is quoted instantly at app.umake.ca.
What industries most commonly order G10 from uMake? Electrical panel and switchgear manufacturers, PCB prototype fabricators, firearms grip and accessory makers, industrial tooling and jig builders, aerospace structural insulator manufacturers, and knife and custom tool handle makers are among the most active G10 customers at uMake. The material's combination of electrical insulation, structural strength, and machinability makes it useful across both high-voltage electrical and high-stress mechanical applications.
How does G10 compare to phenolic and carbon fiber for electrical insulation and structural applications? G10 outperforms phenolic laminates in moisture resistance, impact strength, and machinability to tight tolerances. It provides better structural properties than phenolic while maintaining comparable electrical insulation. Versus carbon fiber, G10 offers electrical insulation (carbon fiber conducts electricity) at significantly lower cost — making G10 the correct choice for structural electrical insulators where both properties are simultaneously required. For purely structural applications without electrical requirements, carbon fiber provides higher specific stiffness.

Processing G10 at uMake

What cutting processes does uMake use for G10, and what safety precautions apply? uMake processes G10 via CNC routing (for precise profiles, pockets, and 3D features) and waterjet cutting (for complex 2D profiles without fiber dust generation). G10 generates silica and glass fiber dust during cutting — a respiratory hazard requiring appropriate ventilation and PPE at uMake's facility. Customer teams handling cut G10 parts should avoid generating additional dust from sanding or grinding without respiratory protection. Waterjet cutting eliminates the dust issue for flat profiles.
What tolerances does uMake achieve on CNC-routed G10 parts? CNC-routed G10 achieves ±0.1–0.15 mm on profile dimensions and bore diameters — comparable to acetal and HDPE. G10's thermoset chemistry means it does not creep or deform under machining forces, enabling consistent tolerances across complex features. For electrical insulator applications requiring precise clearances between conductors, G10's dimensional stability under load and temperature makes it preferable to thermoplastics that may creep over time.

Is there a minimum order quantity for acrylic laser cutting? Zero. None. Not one. You can order a single acrylic piece — one custom earring, one award, one prototype enclosure panel — and receive the same precision, the same flame-polished edge quality, and the same fast shipping as a 500-piece production run. There are no setup fees, no plate charges, and no penalty for small quantities. This is one of the most important reasons Canadian makers, small businesses, and Etsy sellers choose uMake. You can: Test a new product design with a single prototype before investing in inventory Fulfill one-off custom orders for clients without overstocking Replace a single damaged piece from a display or installation Iterate your design multiple times without commitment to large batches Order one piece today at app.umake.ca — no minimums, no excuses.

What file formats work best for G10 orders at uMake? DXF for flat 2D profiles; STEP for 3D components with pockets, stepped profiles, or complex geometry. Specify G10 grade and thickness in order notes at app.umake.ca. For high-voltage insulator applications with creepage distance requirements, include the minimum electrical clearance specification and the team will confirm that the machined geometry meets your requirements before production.

G10 Applications by Industry

How is G10 used in electrical insulation and switchgear manufacturing? G10 spacers, standoffs, busbar insulators, and arc-chute dividers are produced at uMake for electrical panel manufacturers and switchgear builders. G10's combination of dielectric strength (14–18 kV/mm), moisture resistance, and dimensional stability under load makes it superior to standard phenolic for medium-voltage applications where a damp environment or long-term dimensional precision is required. uMake cuts G10 electrical insulators to ±0.1 mm from DXF files with no minimum order.
What firearms and tactical equipment applications use G10 from uMake? G10 is the dominant material for custom pistol grip panels, knife scales, tactical flashlight body sections, and firearms accessory components. Its combination of grip texture, moisture resistance, dimensional stability, and machinability to sharp profiles makes it preferred over wood, rubber, and most polymers for precision-fit custom firearm components. uMake's CNC router produces G10 grip panels with textured surfaces, machined checkering, and contoured profiles matching customer 3D files. No minimum order at app.umake.ca.
How is G10 used in aerospace, defence, and precision instrument manufacturing? G10's zero magnetism (unlike metal insulators), electrical isolation, and dimensional stability under thermal cycling make it widely used in aerospace sensor mounting brackets, RF antenna isolation substrates, radar system insulators, and precision instrument mounting plates. For applications adjacent to magnetic sensors or in RF-sensitive equipment, G10's non-magnetic, non-conductive character is often the only technically acceptable choice. uMake cuts aerospace and defence G10 components with traceability documentation available on request.
What industrial tooling and jig applications use G10 from uMake? G10 jig plates, fixture backing plates, and drill templates provide the electrical isolation, dimensional stability, and surface hardness required in assembly jigs for electrical and electronic assemblies — where metal fixturing would create short-circuit risk. G10's machinability and surface smoothness also make it suitable for vacuum fixture faceplates, conformal coating masking plates, and reference surface plates in precision assembly environments.

G10 vs. Other Materials

When should I choose G10 over FR-4 for my electrical insulation application? FR-4 is G10 with UL94 V-0 fire retardant additives — the correct choice for any application where a flame or ignition source is present or where building and electrical codes mandate flame-retardant materials. Standard G10 is adequate for applications away from ignition sources where flame retardancy is not a code requirement. For electrical panel and switchgear applications, FR-4 is almost always the correct specification. For structural insulator applications in non-electrical-code-governed mechanical equipment, standard G10 is appropriate.
When does G10 outperform PEEK for structural insulator applications? PEEK costs approximately 15–20× more than G10 per kilogram and is the correct choice only when temperature requirements exceed G10's 130 °C continuous service limit or when the mechanical loads require PEEK's higher tensile strength. For room-temperature and moderate-temperature electrical insulation applications under moderate load, G10 provides equivalent or superior electrical performance to PEEK at a fraction of the cost. Specifying PEEK where G10 would perform adequately is a common and expensive over-engineering error.
Can G10 be used as a structural panel in place of aluminum for non-conductive assemblies? G10 substitutes aluminum in assemblies where electrical conductivity of metal frames is unacceptable — RF enclosures, high-voltage switchgear structural supports, and precision electronic instrument chassis. G10's tensile strength (300–350 MPa) approaches that of mild aluminum alloys, though its lower elastic modulus means it deflects more under equivalent load. For lightly loaded structural panels where conductivity exclusion is the primary requirement, G10 is the correct and economical choice.
Can uMake combine G10 with metal parts or other insulators in a single order? Yes — G10 orders regularly combine with stainless steel hardware, aluminum mounting plates, and acrylic panels under one order at app.umake.ca. For complete electrical panel insulator assemblies — G10 spacers, stainless hardware, and phenolic backing plates — uMake coordinates all components under one order number. Submit your complete BOM with material specifications for each component.

Ordering G10 at uMake

What is the minimum order for G10 CNC routing at uMake? No minimum order — one G10 insulator ships as efficiently as one hundred. Pricing at app.umake.ca is calculated on geometry and material consumed with no setup fees or plate charges. Volume discounts apply automatically at larger quantities. Instant quote for any G10 geometry at app.umake.ca.
How quickly can uMake produce and ship G10 parts across Canada? Standard G10 produces in 1–2 business days. Shipping from Montreal to GTA and Ottawa 1–2 days; Prairie provinces 3–4 days; BC 4–5 days. Express production and priority shipping available at checkout on app.umake.ca with exact delivery dates shown before you confirm. Free shipping on orders over $250 CAD.
Can uMake maintain dimensional consistency across repeat G10 production orders? Yes — app.umake.ca stores every order permanently. Repeat orders apply identical machining parameters. For G10 electrical insulators and structural components on recurring production or maintenance replacement schedules, one-click reorder ensures dimensional consistency. Net-30 available for approved accounts after five completed orders.
Does uMake provide material certifications for G10 in regulated applications? Material data sheets and supplier certifications for G10 and FR-4 are available on request. For electrical panel applications requiring UL94 V-0 certification, electrical grade certification (NEMA grade specification), or dielectric strength documentation, specify requirements at quoting@umake.ca when ordering. Full traceability documentation is available as a service add-on for regulated industries.

Technical FAQ — G10 at uMake

What are the electrical properties of G10 that make it suitable for high-voltage applications? G10 provides dielectric strength of 14–18 kV/mm in the through-plane direction — adequate for medium-voltage insulation applications. Surface resistivity exceeds 10¹³ Ω at ambient conditions. Dielectric constant is 4.5–5.5 at 1 MHz — stable across frequency, which is important for RF insulation applications. Dissipation factor is 0.010–0.025 at 1 MHz — acceptable for most power frequency and RF applications. For ultra-high-voltage applications above 100 kV, mica or ceramic insulators provide superior performance.
How does G10 perform in wet and high-humidity environments? G10 absorbs approximately 0.1–0.5% moisture when fully immersed — significantly less than phenolic laminates (which absorb 0.5–5% depending on grade). This low moisture absorption maintains electrical properties in humid environments where phenolic insulators would experience significant dielectric degradation. For outdoor and marine electrical insulation applications, G10's moisture resistance makes it the preferred laminate over phenolic. For fully submerged applications, sealed edges prevent moisture wicking along the glass fiber-resin interface.
Can G10 be bonded, riveted, or fastened with standard hardware? G10 accepts standard mechanical fastening (screws, rivets, through-bolts) with no special considerations — standard drill bits and tap geometry work on G10 with appropriate cutting speeds. Epoxy adhesives bond G10 with high strength when surfaces are abraded and cleaned before bonding. Solvent bonding (used for thermoplastics) does not work on G10's thermoset surface. For high-voltage insulator assemblies, ensure metallic fasteners do not breach minimum electrical clearance distances — design with appropriate edge distances and conductor spacing.
What are the machining considerations for G10 CNC routing? G10's glass fiber reinforcement wears carbide tooling faster than thermoplastics — expect 50–70% shorter tool life versus machining ABS or acetal. Use carbide or diamond-coated tooling at lower feed rates than equivalent thermoplastic operations. G10 does not melt during cutting (it's a thermoset), but glass fiber dust requires full respiratory protection and dust collection. Coolant is generally not used for G10 routing to avoid saturation of the cut surface. uMake's CNC operators are trained in G10 machining parameters — specify G10 in your order at app.umake.ca.

FAQ / Q&A G10 Fabrication

Countersink Specs
Values3
Min countersink part size
1" x 4"
Max countersink part size
14" x 46"
Countersink Min Minor
0.130"
Countersink Max Major
0.472"
Countersink Min Hole Center to Material Edge
0.361"
Properties
Value
Advertised Thickness
0.125"
Gauge
N/A
Thickness tolerance positive
0.007"
Thickness tolerance negative
0.006"
Top/Bottom Finish
Textured top side, smooth bottom
Sourced from
Canada
General Details
Properties 2
Value2
Cutting process
CNC Router
Cut tolerance +/-
0.005"
Flatness tolerance before cutting
+/- 0.030" per foot
Min part size
1" x 2"
Max part size
44" x 30"
Min hole size
0.125"
Min bridge size
0.125"
Min hole to edge distance
0.38"
Tab and slot Tolerance
0.015"
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Countersink Specs
Values3
Min countersink part size
1" x 4"
Max countersink part size
14" x 46"
Countersink Min Minor
0.130"
Countersink Max Major
0.472"
Countersink Min Hole Center to Material Edge
0.361"
Countersink Specifications
Tapping Specs
Value4
Largest Tap
M10 x 1.5
Smallest Tap
M4 x 0.7
Min Flat Part Size Tapping
0.949" x 1.5"
Max Flat Part Size Tapping
36" x 46"
Tapping Min Hole to Edge
0.063"
Tapping Min Hole Center to Material Edge
Tap hole size/2 +0.063"
ABS Properties
Value5
Material Composition
Acrylonitrile Butadiene Styrene
Density
65.664 lb/ft^3
Heat treatment process
N/A
ASTM
D4673
Tensile Strength (Ultimate)
4.5 ksi
Tensile Strength (Yield)
3.5 ksi
Shear Strength
2 ksi
Shear Modulus
75 ksi
Fatigue Strength
2 ksi
Izod Impact Strength
6.3 ft-lbs/in
Coefficient of Friction
0.19 – 0.21
Rockwell
R 90 - R100
Elongation at Break
25%
Elastic Modulus
340 ksi
Poisson’s Ratio
.35
Thermal Conductivity
0.22 BTU/h-ft °F
Vicat Softening Temp
150 °F
Melting Point
390 °F
Magnetic
No
Does it Rust
No
ABS Properties
Tapping Specifications
CNC Router Cutting Specifications

CHARACTERISTICS

Flame retardant

Strong and stiff

Dimensionally stable

Outstanding electrical properties

Creep resistance

DISADVANTAGES

Cost - G10 can be expensive compared to metals like aluminum or steel, making it less suitable for small projects.

Rigidity - G10 can be difficult to work with due to its rigidity and high fiber content.

UV resistance - G10 can break down over time with prolonged exposure to UV rays, which can affect its appearance and mechanical properties. A UV resistant coating can help mitigate this.

Dust - When cut or sanded, G10 can create dust that can irritate the skin and eyes. Wearing protective gear is recommended.

FR4 dimensional stability - FR4's dimensional stability can degrade at high temperatures, voltages, and powers.

PRODUCT AND INDUSTRY APPLICATIONS

printed circuit board, insulator, jigs and fixtures

G10 is a high-strength composite material made from layers of fiberglass cloth that are impregnated with epoxy resin and then compressed under high pressure and temperature. This manufacturing process results in a dense, durable material with excellent mechanical properties. G10 is widely used in the production of knife handles, circuit boards, electrical insulators, and structural components for aerospace, automotive, and industrial applications. It is especially popular in environments that demand high strength, electrical insulation, and resistance to moisture, making it ideal for components that must withstand extreme conditions.

The advantages of G10 include its exceptional strength-to-weight ratio, high impact resistance, and electrical insulation properties. It is also highly resistant to chemicals, moisture, and abrasion, making it suitable for use in harsh environments. G10 can be easily machined, cut, and drilled, making it versatile for a variety of applications, and its non-conductive nature makes it an excellent choice for electrical and electronic components. However, G10 has some disadvantages: it can be brittle under extreme impact or stress, particularly when subjected to sharp blows or stress concentration points. Additionally, the material can be difficult to handle in its raw form due to the fine fiberglass particles it releases during machining, which can irritate the skin or respiratory system. Despite these concerns, G10 remains a popular choice for applications requiring strength, durability, and electrical insulation.

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