Siraya Tech ABS HT HF - User Guide

Siraya Tech ABS HT HF engineering-grade filament is designed for professionals and makers who require exceptional mechanical strength, high temperature resistance, and high-flow performance for fast printing, all with the significant benefit of a low-odor formulation.

This guide will help you achieve the best possible results with your filament.

1. Key Characteristics

High Temperature Resistance: Ideal for functional parts that must perform under thermal stress, with a Heat Deflection Temperature (HDT) of 93°C (at 0.45MPa).

Excellent Strength: Produces robust and durable parts. Printed parts can achieve a tensile strength in the X-Y axis of nearly 40 MPa.

Low Odor Formulation: Synthesized using an advanced process that leaves very few residual solvents or monomers, resulting in a much lower odor during printing compared to other ABS filaments.

High-Flow for Fast Printing: Optimized for a wide range of printing speeds, ABS HT HF a high flow rate that can hit well over 20+ mm^3/s for high flow extruder / hotend design.

2. Recommended Printing Settings

These settings are a great starting point. Your printer may require slight adjustments for optimal results.

Setting	Recommended Value	Notes
Nozzle Temperature	240-260°C	Start at 250°C and adjust for best layer adhesion and surface finish.
Bed Temperature	100-110°C	Essential for first layer adhesion and preventing warpage.
Build Surface	PEI Film, PC Film, or Glass	Use of an adhesive like a glue stick or Magigoo can also help.
Print Speed	30-200 mm/s	Begin with a moderate speed (e.g., 80-100 mm/s) and increase as you confirm quality.
Cooling Fan Speed	0-30%	ABS requires slow cooling for strong layer bonds. Turn the fan off for the first few layers, then use minimal speed.
Retraction Distance	0.4-1.0 mm	For direct drive extruders. Bowden extruders may require longer distances.
Retraction Speed	1800-3600 mm/min (30-60 mm/s)	Dial this in to prevent stringing.
Recommended Nozzle	≥0.2 mm	Standard brass nozzles work well. No hardened nozzle required.

 

3. Best Practices for Optimal Results

Following these recommendations is critical for successful printing with ABS HT HF.

An Enclosure is Essential

Always print this material in a fully enclosed printer. This traps heat, creating a stable environment that is necessary to prevent warping and cracking.

Use a Heated Chamber if Available

A heated chamber significantly improves part quality, especially Z-axis (layer-to-layer) strength.

For example, tests show Z-axis tensile strength can increase from ~26 MPa in an open-air environment to over 32 MPa with a chamber heated to 55°C. If your printer has a heated chamber, set it to 50-70°C.

Keep Your Filament Dry

If you notice a decline in print quality, such as excess stringing or poor surface finish after the filament has been open for a long time, it may have absorbed moisture.

Dry the spool in a filament dryer or oven at 70-80°C for 4-6 hours.

Ensure Good Ventilation

While this filament is formulated to have very low odor, it is still recommended to operate your printer in a well-ventilated area.

4. Post-Processing

Siraya Tech ABS HT HF is a versatile material that is easy to finish. All standard post-processing methods for regular ABS will work perfectly.

Sanding

Parts can be wet or dry sanded to achieve a smooth surface.

Acetone Smoothing

For a glossy, injection-molded look, parts can be briefly exposed to acetone vapor. Always perform this process in a well-ventilated area with appropriate safety precautions.

Painting

Parts can be primed and painted with most common hobbyist or automotive paints.