Exposure defines the grade
Salt water, fuel and solvents place very different demands on a polymer. The medium decides the material, not the other way round.
Production Scenario
Parts for wet, salty and chemically exposed environments
Moisture-tolerant and weather-stable grades for marine and industrial settings, with parameters matched to your exposure.
ASAPETGCarbon Fiber PETG
The Real Cost
Standard PLA does not belong anywhere near water or solvents. Choosing the grade after the part has failed means repeating the whole design cycle.
- A part that absorbs moisture loses strength while still looking intact
- UV exposure degrades an unprotected surface over a season
- A grade chosen without testing against the actual medium fails unpredictably
Perspective Shift
What the best operators do differently
Moisture tolerance is not chemical resistance
A grade that handles humidity well may still be unsuitable for prolonged contact with a solvent, so both axes have to be checked.
Validation must use the real medium
Immersion and exposure testing with the actual substance is the only reliable answer for a specific chemical environment.
Your Toolkit 01 02 03
What we put in your hands
Moisture tolerance
Grades that handle humidity and repeated wetting.
Weather stability
UV-stable ASA for parts exposed to sun and rain.
Exposure validation
A structured way to test a candidate grade against your actual medium.
What you get
A pass and fail result before the design is released
Recommended materials
Every project is different — here's our recommended Bill of Materials to start your project.
Core Filaments
Yiqiu3D ASA Filament 1.75 mm 1 kg Outdoor
Weather and UV stability for parts exposed outdoors or to washdown
View in Yiqiu3D ASA Filament 1.75 mm 1 kg Outdoor line →
PETG Filament 1.75mm 1kg Single Color 22 Colors
Moisture tolerance for humid and intermittently wet service
View in PETG Filament 1.75mm 1kg Single Color 22 Colors line → Your Path Day 1 Day 2 to 3 Week 1 Week 2 and beyond
From first spool to full production
Name the medium
Tell us what the part contacts, for how long and at what temperature.
Start a projectCandidate grades
We shortlist grades for your exposure and operating window.
Browse materialsExposure validation
Test samples against the real medium before releasing the design.
See the protocolDocumented supply
Supplied from documented lots with ocean-ready packaging.
See the workflow Your First Move
Test the grade against your medium
Tell us the exposure and we will send samples for your own validation.
Request a free sampleSend us your Marine Applications requirement
Reply within 24h · Sample-first ordering · We'll send you the Alibaba product link for final negotiation.
Thanks! We'll be in touch within 24 hours.
Check your email for our response. For pricing and formal orders, you can also visit our Alibaba store:
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Our form service is being upgraded — please reach us directly: sales@yiqiu3d.com
The Challenge
Standard PLA fails in days in marine environments — salt spray accelerates polymer degradation. ABS fails with fuel exposure. Even PETG degrades with prolonged chemical immersion. If your parts are going into a marine engine bay, a chemical processing plant, or an outdoor marine environment, you need a material with proven chemical resistance data — not just “good for outdoor use.”
What You Get
- Salt spray test data — ASTM B117 validation for 500h and 1000h exposure available
- Chemical immersion data — ASTM D543 resistance to diesel, saltwater, brake fluid, and common solvents
- Custom formulation — for extreme chemical exposure requirements, custom polymer packages are available
- Engineering consultation — our team advises on part orientation, wall count, and infill for chemical resistance