In a world where reliability is non-negotiable, engineering confidence starts with certified performance. Whether you're designing for defense, aerospace, industrial, or consumer electronics, the ability to withstand dust, water, impact, and extreme environments is critical.
This blog explores how Stratasys is aligning its additive material portfolio with globally recognized standards, such as IP (Ingress Protection), IK (Impact Protection), and MIL-STD (Military Standards), to deliver rugged, real-world-ready parts across SAF™, FDM®, P3™ DLP, and PolyJet™ technologies.
IP stands for Ingress Protection and is defined by the IEC 60529 standard. It classifies the degree of protection provided by enclosures against intrusion from solids (like dust) and liquids (like water). IP ratings take the following form:
IPXY
Where:
X = Protection against solid objects (like dust, fingers, tools)
Y = Protection against liquids (like water sprays, immersion)
|
Digit |
Protection Level |
Description |
|
0 |
None |
No protection against contact or objects |
|
1 |
>50 mm |
Protected against large body parts (e.g., hand) |
|
2 |
>12.5 mm |
Protected against fingers or similar objects |
|
3 |
>2.5 mm |
Protected against tools, thick wires |
|
4 |
>1 mm |
Protected against most wires, screws |
|
5 |
Dust-protected |
Limited ingress of dust, no harmful deposits |
|
6 |
Dust-tight |
Complete protection against dust ingress |
|
Digit |
Protection Level |
Description |
|
0 |
None |
No protection |
|
1 |
Dripping water |
Vertically falling drops |
|
2 |
Dripping water (tilted) |
Up to 15° from vertical |
|
3 |
Spraying water |
Up to 60° from vertical |
|
4 |
Splashing water |
From any direction |
|
5 |
Water jets |
Low-pressure jets from any direction |
|
6 |
Powerful jets |
High-pressure jets from any direction |
|
7 |
Immersion (temporary) |
Up to 1 meter for 30 minutes |
|
8 |
Immersion (continuous) |
Beyond 1 meter, under specified conditions |
|
9 |
High-pressure, high-temperature jets |
Often used in automotive applications |
Example: IP66
6 = Dust-tight (no ingress of dust)
6 = Protected against powerful water jets (12.5 mm nozzle, 100 liters/min)
This makes IP66-rated enclosures ideal for outdoor, industrial, marine, and rugged electronic enclosures.
The following table shows some common IP ratings and the Stratasys materials that can be used to meet them, along with typical applications.
|
IP Rating |
Protection Level |
Stratasys Materials |
Use Cases |
|
IP65 |
Dust-tight, low-pressure jets |
Industrial enclosures, light-duty electronics |
|
|
IP66 |
High-pressure jets |
SAF PP, FDM PC-ABS, P3 Loctite® 3D 3843 |
Marine, rugged electronics |
|
IP67 |
Temporary immersion |
SAF PA12, FDM ULTEM™ 9085 resin, and P3 Loctite 3D IND403 |
Sensors, wearables |
|
IP68 |
Continuous immersion |
SAF PP, FDM Antero® 800NA, P3 Loctite 3D 3955 FST |
Submersibles, defense enclosures |
Real-World Application: IP66 & IK09 Rated Connector Enclosures
TECHNO used Loctite 3D 3843 on the Origin® platform to meet IP66 protection grade and IK09 impact resistance for outdoor Internet of Things (IoT) enclosures. These parts withstand UV exposure, temperature cycles, and comply with NEMA and Zhaga standards.
IK is defined by the IEC 62262 standard as the "index of protection against mechanical impacts," and is used to classify the degree of protection an enclosure offers against physical impact. IK ratings take this form:
IKXX
Where:
IK = Impact Protection
XX = A two-digit number representing the impact energy (in joules) which the enclosure can withstand.
|
IK Rating |
Impact Energy |
Equivalent Impact |
|
IK00 |
0 J |
No Protection |
|
IK01 |
0.15 J |
200 g dropped from 7.5 cm |
|
IK02 |
0.2 J |
200 g from 10 cm |
|
IK03 |
0.35 J |
200 g from 17.5 cm |
|
IK04 |
0.5 J |
200 g from 25 cm |
|
IK05 |
0.7 J |
200 g from 35 cm |
|
IK06 |
1 J |
500 g from 20 cm |
|
IK07 |
2 J |
500 g from 40 cm |
|
IK08 |
5 J |
1.7 kg from 29.5 cm |
|
IK09 |
10 J |
5 kg from 20 cm |
|
IK10 |
20 J |
5 kg from 40 cm |
A standardized impact hammer is dropped from a specific height onto the enclosure.
The mass and height are calibrated to deliver the exact energy level.
To pass a given rating, the test object must not crack, deform, or expose internal components.
They ensure durability in environments prone to accidental or intentional impact.
IK ratings are critical for:
Public infrastructure (e.g., kiosks, lighting)
Military and defense applications
Industrial electronics in rugged settings
Consumer devices exposed to rough handling
The following table shows IK ratings of various additive manufacturing materials, along with relevant applications.
|
IK Rating |
Impact Energy |
Stratasys Materials |
Applications |
|
IK06 |
1 joule |
PolyJet Vero, FDM ABS-M30 |
Indoor electronics |
|
IK08 |
5 joules |
P3 Loctite 3D 3843, FDM PC, SAF PA12 |
Industrial enclosures |
|
IK10 |
20 joules |
FDM ULTEM™ 1010 resin, P3 Loctite 3D IND403, FDM Nylon 12CF |
Military-grade, vandal-resistant parts |
VALIANT TMS replaced CNC-machined ergonomic tooling with Loctite 3D 3172 HDT50 High Impact printed on Origin. The tools passed ISO 10993-5/-23 for skin contact and delivered IK-rated durability, reducing production time from two days to five hours and improving operator comfort. Find the full story here.
In fields where parts simply cannot fail, from defense and aerospace to industrial systems and consumer electronics, additive manufacturing has to go beyond prototyping. It must deliver certified, durable components built for real-world pressure.
At Stratasys, we’re aligning our material portfolio with globally recognized standards like MIL-STD-810H, MIL-STD-108, IP, and IK ratings to ensure our technologies meet the demands of the real world.
Military standards are among the most rigorous benchmarks in engineering. They simulate the harshest conditions imaginable – from desert heat and salt fog to explosive atmospheres and mechanical shock. Two key standards guide our material development:
MIL-STD-810H is designed to replicate the environmental stresses that equipment may face throughout its lifecycle. This includes extreme temperatures ranging from −40 °C to +70 °C, high humidity, salt fog, sand and dust exposure, and mechanical shock and vibration. It even accounts for explosive atmospheres and solar radiation, conditions common in aerospace and defense deployments.
Stratasys materials like FDM Antero 800NA and 840CN03 are engineered for these challenges. These aerospace-grade thermoplastics offer low outgassing, high heat resistance, and chemical durability, making them ideal for aircraft interiors, UAVs, and mission-critical components. Similarly, ULTEM™ 9085 and 1010 resins provide flame retardancy and high strength FDM parts, while SAF Nylon PA12 powder delivers a lightweight yet durable solution for rugged electronics and structural parts.
MIL-STD-108 focuses on the performance of enclosures for electronic equipment. It evaluates drip-proof, dust-tight, and air-tight construction, as well as resistance to fluid ingress, radiated noise, and mounting integrity under vibration.
Materials like SAF Polypropylene (PP) excel in this domain, offering flexibility and water-tight sealing. For gasket and seal applications, P3 Loctite 3D IND402 and P3 Silicone 25A provide elastomeric performance with excellent impact absorption. And for soft-touch, vibration-damping interfaces, PolyJet Agilus overmolds are the go-to solution.
SPECTRA Group leveraged Origin to fast-track development of dielectric components for defense communications. They went from concept to production in five working days, bypassing traditional supply chains and achieving IP- and IK-rated performance with materials like Loctite 3D 3843.
Outdoor environments expose parts to solar radiation, which includes UV light, heat, and moisture cycles. Over time, these factors can cause color fading, embrittlement, cracking, and seal degradation, especially common in polymers. For industrial applications like IoT enclosures, automotive trims, marine housings, and defense electronics, UV resistance is as critical as IP and IK ratings.
UV testing simulates long-term sunlight exposure in a controlled lab environment to predict how materials will perform outdoors. It uses accelerated weathering chambers with UV lamps or xenon-arc light sources to replicate solar radiation, often combined with moisture cycles (spray or condensation) to mimic dew and rain.
ISO 4892-2 – Xenon-arc exposure for plastics (full-spectrum sunlight simulation).
ASTM G154 – Fluorescent UV lamps (UVA/UVB) for coatings and plastics.
ASTM G155 – Xenon-arc exposure for outdoor durability.
MIL-STD-810H Method 505.7 – Solar radiation for defense-grade equipment.
IEC 60068-2-5 – Solar radiation effects on electronic enclosures.
UV degradation can lead to:
Loss of mechanical strength → brittle housings, cracked seals.
Color and gloss changes → aesthetics and branding impact.
Seal failure → compromised IP ratings.
Optical haze → reduced performance in lenses or covers.
For outdoor electronics, automotive, and defense, UV testing ensures long-term reliability alongside IP and IK compliance.
|
Technology |
Material
|
UV Performance
|
Applications
|
||
|
SAF |
Polypropylene (PP) |
UV-stable, IP66–IP68 |
Outdoor housings, marine |
||
|
FDM |
ULTEM™ 9085 resin |
Aerospace-grade, MIL-STD |
Defense, aerospace parts |
||
|
P3 DLP |
Loctite 3843 |
UV-tested, IP66 + IK08 |
IoT enclosures, rugged use |
||
|
PolyJet |
Agilus |
UV-resistant elastomer |
Seals, vibration damping |
||
Real-World Example: Outdoor IoT Enclosure
In the aforementioned TECHNO case, UV protection was also critical. TECHNO used Loctite 3843 to achieve IP66 water protection, IK08 impact resistance, as well as UV stability for outdoor electronics. These enclosures withstand sunlight, rain, and temperature cycles, meeting NEMA and Zhaga standards for smart lighting systems.
UV testing is the final step for outdoor reliability: ensuring parts don’t just survive water and impact but also years of sunlight. Stratasys materials are validated against global UV standards, giving engineers confidence for industrial, automotive, and defense applications.
Stratasys offers a diverse portfolio of materials across SAF, FDM, P3 DLP, and PolyJet technologies, each tailored to meet specific environmental and mechanical demands:
|
Technology |
Material |
Key Traits |
Standards |
|
SAF |
Polypropylene |
Water-tight, flexible |
IP66-IP68, MIL-STD-108 |
|
FDM |
ULTEM™ 9085 resin |
Flame retardant, strong |
MIL-STD-810 |
|
FDM |
Antero 800NA |
High heat, low outgassing |
Aerospace, MIL-STD-810 |
|
P3 DLP |
Loctite 3D 3843 |
Tough, impact-resistant |
IK08, IP66 |
|
PolyJet |
Can mimic various plastics including HDPE, PP, PBT, PC-ABS allowing highest possible impact resistance. |
IK07 Rating |
These materials are certified for performance, while also offering the practical advantages of additive manufacturing, such as lower costs, consistent output, and greater design flexibility.
Stratasys is working closely with certification labs, defense partners, and industry experts to validate materials against IP, IK, and MIL-STD requirements. Through technical blogs, white papers, and real-world case studies, we demonstrate how additive manufacturing can meet, and often exceed, the demands of regulated, high-performance applications.
For defense, aerospace, industrial, and electronics programs, this translates into more than compliance. It means access to the industry’s broadest validated material portfolio, proven environmental and mechanical performance, and scalable production across multiple AM technologies. In parallel, we continue expanding certification coverage through ongoing testing, joint validation initiatives with customers, and deeper collaboration with accredited test centers.
If certified reliability and engineering confidence are critical to your next application, talk to a Stratasys expert to explore the right materials, processes, and qualification pathways for your requirements.