Loctite 3D 3955 HDT280 FST – Black 5KG
Product details
First photopolymer that passes vertical burn and aerospace FST standards
High-performance Halogen-free flame retardant UL94-V0 high modulus photopolymer resin. Printable at 60 °C.
LOCTITE 3D 3955 is a non-halogenated material that delivers superior performance and high modulus, boasting impressive flexural and tensile properties.
This material meets the UL94 V-0 standards for flammability and fulfills FST criteria (AITM2-0002, AITM2-0007, AITM3-0005), making it resilient in extreme conditions with minimal deformation due to its high Heat Deflection Temperature (HDT).
Color: Black
Fire Safety Material
The first 3D photopolymer that passes vertical burn and aerospace FST standards
Benefits
- Halogen Free
- High performance, high modulus with excellent flexural and tensile physical properties
- Extremely high HDT delivers negligible deformation in harsh environments
- Passes flammability 2×10 second Vertical Burn and FST (AirBus AITM2-0002, AITM2-0007, AITM3-0005)
Key Mechanical Properties:
- Shore Hardness D: 82
- Flexural Modulus (MPa): 4,600
- Elongation at Break (%): 2
- Young’s Modulus (MPa): 3,600
- Tensile Stress at Break (MPa): 67
Benefits:
- Fire Safety Material
- Halogen Free
- Excellent Flexural and Tensile Physical Properties
Ideal for:
- HVAC Components for Aircraft
- Clips and Plugs for Control Systems/Cabinets
- Connectors, Electronic Housings
-
PRE-MELT REQUIREMENTS
LOCTITE 3D 3955 BK requires pre-melt of material before use. It is recommended to heat it in the provided 1kg container at 80°C for 4 hours or until the resin is fully liquified in the container. Shake container before pouring material into tray.
Pre-Melt material should be kept at 60°C to maintain fluidity and should be used within 2 weeks of melting for best results.
PRINTER SETTINGS
LOCTITE 3D 3955 BK is formulated to print optimally on industrial DLP printer. Read the safety data sheet carefully to get details about health and safety instructions.
Recommended print parameters:
- Temperature: This material must be printed at or above 55°C.
- Intensity: 3 mW/cm² to 7 mW/cm²
| Layer Thickness (µm) | Burn-in Region (s) | Model Layer Cure Time (s) |
|---|---|---|
| 50 | 20 | 2.3 |
| 100 | 25 | 5 |
CLEANING
LOCTITE 3D 3955 BK requires post processing to achieve specified properties. Prior to post curing, support structures should be removed from the printed part, and the part should then be washed. Use compressed air to remove residual solvent from the surface of the material between intervals.
| Post Process Step | Agent | Method | Duration | Intervals | Additional Info |
|---|---|---|---|---|---|
| Cleaning Step #1 | LOCTITE 3D Cleaner T (at 60°C) | Ultrasonic or manual | 30 sec | 1 or 2 | Preheat LOCTITE 3D Cleaner T to 60°C |
| Dry | n.a. | Compressed air | 10 to 60 sec | 1 | Air pressure (30psi) |
| Optional Step #2 | Acetone | Rinse (don’t soak) | 10 sec | 1 | Rinse residual LOCTITE 3D Cleaner T off parts |
| Wait before post curing | n.a. | n.a. | 60 min | 1 | Room temperature |
POST CURING
POST CURING LOCTITE 3D 3955 BK requires post processing to achieve specified properties. A thermal cure is the only curing method required.
1. Place in room temperature oven (25°C) and power on oven
2. Start heating oven with 3°C per minute ramp from 25°C to 190°C
3. Hold temperature of 190°C for 6 hours
4. Increase oven temperature by 3°C per minute ramp from 190°C to 210°C
5. Hold oven temperature for 1 hour at 210°C
6. Turn off oven and allow enclosed oven to cool
- Do not quench or expose to cold air until oven temperature is below 40°C
- If parts have large cross-sectional areas or large solid cross-sections, we recommend slower ramping speeds
SAFETY
- User must wear suitable respiratory protection during cleaning process.
- Note: Glycol Ether TPM can be used in lieu of Loctite 3D Cleaner T
- Glycol Ether TPM oxidizes at elevated temperatures over time. Consult the MSDS of TPM and contact the supplier for further guidance. Use appropriate antioxidants and regularly measure peroxide concentration.
Resources
- Technical Data Sheet – (Download here)
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