3D Printing Materials: Complex, Custom, and Flexible

3D printing is an advanced manufacturing process that builds parts layer by layer, allowing for complex geometries, rapid prototyping, and on-demand production without the need for costly tooling. It is ideal for custom, small-to-medium production runs and enables lightweight, high-strength designs that traditional methods cannot achieve.

Why Choose 3D Printing?

• No tooling or setup costs – Ideal for prototyping and low-to-mid volume production
• Unmatched design freedom – Create intricate shapes, lattices, and lightweight structures
• Fast turnaround times – Shorter lead times compared to machining and molding
• Variety of materials – Rigid, flexible, high-temperature, and even metal options

RapidMade offers four main types of 3D printing technologies:

• Multi Jet Fusion (MJF) – High-speed production with strong, detailed parts
• Stereolithography (SLA) – Ultra-smooth, high-resolution plastic parts
• Fused Deposition Modeling (FDM) – Cost-effective, industrial-grade thermoplastics
• Metal 3D Printing – Durable stainless steel for high-strength applications

 

Multi Jet Fusion (MJF) Materials

MJF is an advanced powder-based 3D printing process known for high-speed production, excellent detail, and superior mechanical properties.

Nylon PA-12

• Why Choose It? Industrial-grade strength, lightweight, and chemical-resistant
• Best For: Functional prototypes, industrial parts, durable consumer goods
• Key Specs:
  • Tensile Strength: 48 MPa
  • Heat Deflection Temperature: 175°C (350°F)
  • Minimum Wall Thickness: 0.020″

TPU (Thermoplastic Polyurethane)

• Why Choose It? Highly flexible, rubber-like properties with superior wear resistance
• Best For: Gaskets, seals, medical devices, flexible parts
• Key Specs:
  • Tensile Strength: 17 MPa
  • Elongation at Break: 400%
  • Shore Hardness: 90A

 

Stereolithography (SLA) Materials

SLA is the go-to choice for high-detail parts, smooth surface finishes, and rapid production.

General Purpose Acrylic (Standard SLA Resin)

• Why Choose It? Smooth, rigid, and strong with high resolution
• Best For: Prototypes, clear parts, cosmetic models
• Key Specs:
  • Hardness: 80D
  • Tensile Strength: 60 MPa
  • Biocompatibility: ISO 10993-10 compliant

X Pro 9400 B FR (FR / Heat) UL 94 V0 Resin

• Why Choose It? Flame-retardant, high-temperature resistant resin for high-performance applications
• Best For: Aerospace, automotive, and electronics where fire safety is critical
• Key Specs:
  • Flammability: UL-94 V0 rated
  • Tensile Strength: 78 MPa
  • Glass Transition Temperature: 175°C

High Rebound Elastomer (Rubber-Like SLA Resin)

• Why Choose It? Flexible, soft-touch material with excellent energy return
• Best For: Seals, grips, impact-resistant parts
• Key Specs:
  • Shore Hardness: 45A (Black) & 57A (White)
  • Elongation at Break: 201%

Digital ABS

• Why Choose It? High-strength, impact-resistant material that mimics injection-molded ABS
• Best For: Functional prototypes, snap-fit parts, enclosures requiring toughness
• Key Specs:
  • Hardness: 86D
  • Tensile Strength: 60 MPa
  • Flexural Strength: 80.6 MPa
  • Elongation at Break: 47%

 

Fused Deposition Modeling (FDM) Materials

FDM is best for cost-effective, durable thermoplastics with real-world mechanical properties.

ABS (Acrylonitrile Butadiene Styrene)

• Why Choose It? Strong and impact-resistant, great for functional prototypes
• Best For: Industrial fixtures, jigs, enclosures
• Key Specs:
  • Heat Deflection Temperature: 96°C
  • Tensile Strength: 30.8 MPa

Polycarbonate (PC)

• Why Choose It? High impact resistance and clarity
• Best For: Lighting, electronics, automotive, aerospace
• Key Specs:
  • Heat Deflection Temperature: 138°C
  • Tensile Strength: 57 MPa

Ultem 9085

• Why Choose It? Extremely high heat resistance, aerospace-grade performance
• Best For: Aerospace, medical, and automotive applications
• Key Specs:
  • Heat Deflection Temperature: 176.9°C
  • Flame, Smoke, and Toxicity Certified

Nylon 12 Carbon-Filled

• Why Choose It? Lightweight yet strong, high stiffness
• Best For: Load-bearing parts, industrial tools
• Key Specs:
  • Heat Deflection Temperature: 58°C
  • Tensile Strength: 69.1 MPa

 

Metal 3D Printing Materials

Metal 3D printing is best for high-strength, corrosion-resistant metal parts with complex geometries.

316L Stainless Steel

• Why Choose It? Corrosion-resistant, medical & food-grade material
• Best For: Marine, medical, food-processing equipment
• Key Specs:
  • Tensile Strength: 480 MPa
  • High chemical and temperature resistance

17-4 PH Stainless Steel

• Why Choose It? High hardness and strength, heat-treatable
• Best For: Aerospace, tooling, industrial components
• Key Specs:
  • Tensile Strength: 925 MPa
  • Can be hardened post-printing

Sure! Below is the comparison table formatted in plain text so you can easily copy and paste it into your blog post or website.

 

3D Printing Materials Comparison Table

Material	Technology	Best For	Key Properties	Heat Resistance	Tensile Strength
Nylon PA-12	MJF	Durable functional parts, industrial use	High strength, chemical resistance, fine detail	175°C (350°F)	48 MPa
TPU (Thermoplastic Polyurethane)	MJF	Flexible parts, gaskets, seals, medical	Rubber-like, abrasion/chemical resistance	125°C (257°F)	17 MPa
General Purpose Acrylic	SLA	Prototypes, cosmetic models	Smooth surface, high resolution	63°C (145°F)	60 MPa
X Pro 9400 B FR (FR / Heat) UL 94 V0	SLA	Aerospace, electronics, high-temp environments	UL-94 V0 flame-retardant, heat-resistant	175°C (347°F)	78 MPa
High Rebound Elastomer	SLA	Seals, grips, impact-resistant parts	Flexible, high elongation	Moderate	3.1 MPa
Digital ABS	SLA	Snap-fit parts, enclosures, functional prototypes	Tough, impact-resistant, mimics injection-molded ABS	80°C (176°F)	60 MPa
ABS (Acrylonitrile Butadiene Styrene)	FDM	Industrial fixtures, jigs, enclosures	Impact-resistant, cost-effective	96°C (204°F)	30.8 MPa
Polycarbonate (PC)	FDM	Strong, impact-resistant parts	Tough, high temperature tolerance	138°C (280°F)	57 MPa
Ultem 9085	FDM	Aerospace, automotive, medical	Extremely high heat resistance, flame-rated	176.9°C (350°F)	69.2 MPa
Nylon 12 Carbon-Filled	FDM	Load-bearing parts, industrial tools	High stiffness, lightweight	58°C (136°F)	69.1 MPa
316L Stainless Steel	Metal 3D Print	Corrosion-resistant, durable metal parts	High strength, medical & food-grade	High	480 MPa
17-4 PH Stainless Steel	Metal 3D Print	Aerospace, tooling, industrial parts	High hardness, heat-treatable	High	1000+ MPa

 

Thermoforming Materials: Lightweight, Durable, and Cost-Effective

Thermoforming is a highly efficient plastic manufacturing process that heats and molds plastic sheets over a form, creating lightweight, durable parts. It is ideal for medium-to-large production runs and offers low tooling costs compared to injection molding.

Why Choose Thermoforming?

• Low-cost tooling compared to injection molding
• Scalable production for medium-to-high volume manufacturing
• Wide range of materials with different strengths, flexibility, and finishes
• Large part capabilities with sheet sizes up to 132″ x 58″

RapidMade offers two main categories of thermoforming plastics:

• Standard Thermoplastics – Cost-effective, general-use plastics
• High-Performance Thermoplastics – Specialty materials for enhanced properties

 

Standard Thermoplastics

These materials are affordable, widely used, and easy to form, making them great for cost-sensitive applications.

HIPS (High-Impact Polystyrene)

• Why Choose It? Low-cost, easy to form, and impact-resistant
• Best For: Packaging, disposable trays, models
• Key Specs:
  • Excellent machinability
  • Good impact resistance
  • Affordable and widely available

ABS (Acrylonitrile Butadiene Styrene)

• Why Choose It? Durable, lightweight, and cost-effective
• Best For: Automotive panels, enclosures, protective covers
• Key Specs:
  • Good impact resistance
  • Higher heat resistance than HIPS
  • Available in various colors and textures

PETG (Polyethylene Terephthalate Glycol-Modified)

• Why Choose It? Clear, tough, and FDA-approved for food contact
• Best For: Medical trays, packaging, face shields
• Key Specs:
  • High clarity (can be used for see-through parts)
  • Impact-resistant and chemically resistant
  • Easy to thermoform

HDPE (High-Density Polyethylene)

• Why Choose It? Impact-resistant and moisture-proof
• Best For: Outdoor equipment, marine applications
• Key Specs:
  • UV-resistant and waterproof
  • High toughness and flexibility
  • Great for rugged outdoor use

Polypropylene (PP)

• Why Choose It? Chemical-resistant, flexible, and fatigue-resistant
• Best For: Living hinges, containers, automotive parts
• Key Specs:
  • Excellent chemical resistance
  • Good fatigue resistance (ideal for hinges)
  • Lightweight and flexible

 

High-Performance Thermoplastics

These materials offer higher strength, chemical resistance, and heat tolerance for demanding applications.

Polycarbonate (PC)

• Why Choose It? High-strength, heat-resistant, and optically clear
• Best For: Protective barriers, industrial machine guards
• Key Specs:
  • High impact strength (250x stronger than glass)
  • Good heat resistance
  • Available in clear or tinted options

Kydex® (Fire-Retardant ABS/PVC Blend)

• Why Choose It? Flame-resistant, durable, and chemical-resistant
• Best For: Aircraft interiors, medical equipment housings
• Key Specs:
  • UL-94 V0 fire rating
  • High rigidity and scratch resistance
  • Available in multiple colors and textures

PVC (Polyvinyl Chloride)

• Why Choose It? Chemical-resistant, flame-retardant, and durable
• Best For: Chemical storage tanks, pipes, housings
• Key Specs:
  • Excellent chemical and corrosion resistance
  • Naturally flame-retardant
  • Available in rigid and flexible forms

Aerolite Thermoformable Carbon Fiber

• Why Choose It? High-strength, lightweight, and thermoformable
• Best For: Automotive components, aerospace parts, high-performance applications
• Key Specs:
  • Tensile Strength: Up to 200 MPa
  • Flexural Strength: Up to 253 MPa
  • Carbon Content: Available in 15% and 30% by weight
  • Sheet Thickness: 1.5 mm and 2.5 mm
  • Note: Aerolite offers up to seven times the strength of unfilled plastics and significantly reduces production times and costs compared to traditional carbon fiber manufacturing. citeturn0search0

 

Thermoforming Materials Comparison Table

Material	Best For	Key Properties	Heat Resistance	Impact Resistance	Chemical Resistance	Fire Rating
HIPS	Packaging, disposable trays, models	Low-cost, easy to form	Moderate	Good	Moderate	Not rated
ABS	Automotive panels, enclosures	Durable, lightweight	Moderate	Good	Moderate	Not rated
PETG	Medical trays, packaging, face shields	Clear, tough, FDA-approved	Moderate	Good	Moderate	Not rated
HDPE	Outdoor equipment, marine applications	Impact-resistant, moisture-proof	Moderate	Excellent	Excellent	Not rated
Polypropylene (PP)	Living hinges, containers, automotive parts	Chemical-resistant, flexible	Moderate	Good	Excellent	Not rated
Polycarbonate (PC)	Protective barriers, machine guards	High-strength, optically clear	High	Excellent	Moderate	Not rated
Kydex® (ABS/PVC Blend)	Aircraft interiors, medical housings	Flame-resistant, durable	High	Good	Excellent	UL-94 V0
PVC	Chemical tanks, pipes, housings	Chemical-resistant, flame-retardant	Moderate	Good	Excellent	UL-94 V0
Carbon Fiber	Automotive, aerospace, high-performance parts	High-strength, lightweight, thermoformable	High	Excellent	Excellent	Not rated

Machining Materials: Precise, Strong, and Versatile

Machining is a subtractive manufacturing process that removes material from a solid block to create highly accurate and durable parts. It is ideal for low-to-medium production runs requiring tight tolerances, superior surface finishes, and high-strength materials that may not be suitable for other manufacturing methods.

Why Choose Machining?

• High precision and tight tolerances – Capable of ±0.001″ accuracy
• Wide range of materials – Metals, plastics, and specialty composites
• Superior surface finishes – Smooth, polished, or custom textures available
• Excellent for functional parts – Stronger and more wear-resistant than printed or molded components

RapidMade offers machining in a variety of materials, categorized into:

• Machinable Metals – Aluminum, steel, stainless steel, copper, and more
• Machinable Plastics – Rigid and engineering-grade plastics for durability

 

Machinable Metals

Machined metals provide exceptional strength, durability, and precision, making them suitable for high-performance applications.

Aluminum (6061, 7075)

• Why Choose It? Lightweight, strong, corrosion-resistant, and easy to machine
• Best For: Aerospace, automotive, structural components
• Key Specs:
  • Excellent strength-to-weight ratio
  • Naturally corrosion-resistant
  • Good thermal and electrical conductivity

Stainless Steel (303, 304, 316, 17-4, 410, 416, 420, 440C)

• Why Choose It? High corrosion resistance, strength, and wear resistance
• Best For: Medical, food processing, marine, and industrial applications
• Key Specs:
  • 303 & 304: General-purpose, corrosion-resistant
  • 316: Marine-grade, superior chemical resistance
  • 17-4 PH: High-strength, heat-treatable
  • 440C: High hardness and wear resistance

Carbon Steel (1018, 1045, 12L14)

• Why Choose It? Strong and cost-effective for structural and mechanical parts
• Best For: Structural frames, industrial machinery, gears
• Key Specs:
  • 1018: Low carbon, excellent machinability
  • 1045: Medium carbon, stronger and tougher than 1018
  • 12L14: Free-machining steel with high precision

Alloy Steel (4140, 4340, 8620)

• Why Choose It? High strength, toughness, and wear resistance
• Best For: Aerospace, automotive, and tooling applications
• Key Specs:
  • 4140: Heat-treatable, impact-resistant
  • 4340: Ultra-high strength, fatigue-resistant
  • 8620: Great for hardened components like gears

Copper (C110, C360 Brass)

• Why Choose It? Excellent electrical and thermal conductivity
• Best For: Electrical contacts, heat exchangers, decorative parts
• Key Specs:
  • C110 (Pure Copper): High conductivity but softer
  • C360 (Brass): More rigid and corrosion-resistant

 

Machinable Plastics

Machined plastics offer lightweight, chemical-resistant, and non-conductive solutions for applications where metal is not ideal.

Delrin (POM / Acetal)

• Why Choose It? High wear resistance, low friction, and excellent machinability
• Best For: Bearings, gears, automotive components
• Key Specs:
  • Strong and rigid
  • Excellent dimensional stability
  • Low moisture absorption

Nylon (PA6, PA66)

• Why Choose It? Strong, impact-resistant, and self-lubricating
• Best For: Gears, bushings, structural parts
• Key Specs:
  • Good wear resistance
  • Moderate chemical resistance
  • Absorbs moisture (may affect dimensional stability)

Polycarbonate (PC)

• Why Choose It? Tough, heat-resistant, and optically clear
• Best For: Machine guards, enclosures, lenses
• Key Specs:
  • High impact strength
  • Good electrical insulation
  • Heat deflection temperature: 138°C (280°F)

PTFE (Teflon®) (Case-by-Case Material)

• Why Choose It? Extreme chemical resistance, non-stick properties
• Best For: Seals, gaskets, medical components
• Key Specs:
  • Very low friction
  • High heat resistance (260°C)
  • Soft and prone to wear

PEEK (Polyetheretherketone) (Case-by-Case Material)

• Why Choose It? High-performance plastic for extreme conditions
• Best For: Aerospace, medical implants, high-temperature applications
• Key Specs:
  • Heat resistance up to 250°C (482°F)
  • Exceptional mechanical strength
  • Resistant to radiation and chemicals

 

Machining Materials Comparison Table

Material	Best For	Key Properties	Strength	Heat Resistance	Chemical Resistance
Aluminum (6061, 7075)	Aerospace, automotive, structural components	Lightweight, corrosion-resistant	Medium	Moderate (400°F)	Moderate
Stainless Steel (303, 316, 17-4, etc.)	Medical, marine, industrial	Corrosion-resistant, strong	High	High (600°F+)	Excellent
Carbon Steel (1018, 1045, 12L14)	Structural frames, machinery	Strong, cost-effective	High	Moderate	Low
Alloy Steel (4140, 4340, 8620)	Aerospace, tooling, high-stress applications	High strength, wear-resistant	Very High	High (700°F+)	Moderate
Copper (C110, C360 Brass)	Electrical, heat exchangers, decorative	High conductivity, corrosion-resistant	Low	Moderate	Moderate
Delrin (Acetal / POM)	Bearings, gears, automotive components	Low friction, wear-resistant	Medium	Moderate	Good
Nylon (PA6, PA66)	Gears, bushings, mechanical components	Strong, impact-resistant, self-lubricating	Medium	Moderate	Moderate
Polycarbonate (PC)	Machine guards, enclosures, lenses	Tough, optically clear	Medium-High	High (280°F)	Moderate
PTFE (Teflon®)	Seals, gaskets, medical devices	Low friction, extreme chemical resistance	Low	High (500°F)	Excellent
PEEK	Aerospace, medical, high-heat applications	High strength, extreme heat resistance	Very High	Very High (482°F)	Excellent