Siraya Tech Fast ABS-Like Resin

# Siraya Tech Fast ABS-Like Resin

Overview

Siraya Tech Fast ABS-Like Resin is a general-purpose UV-curable photopolymer developed for fast printing, clean detail reproduction, and less brittle behavior than many basic model resins. Siraya Tech positions the regular Fast formula for tabletop miniatures, figurines, digital sculptures, prototypes, and general industrial parts rather than as a dedicated high-impact engineering resin.

Fast is designed primarily for MSLA/LCD printers and is also compatible with suitable DLP and laser-SLA systems that use an FEP or nFEP film-based vat. Its low liquid viscosity helps resin flow and refill beneath the build plate quickly, which supports reliable printing across a wide range of desktop machines.

For current product information, see the official Siraya Tech Fast ABS-Like Resin page. Siraya Tech also provides a dedicated Fast Resin user guide and Fast Resin technical data sheet.

Key Benefits

• Fast-curing general-purpose resin
• Fine detail and smooth model surfaces
• Non-brittle behavior compared with many basic model resins
• Low viscosity of approximately 110 mPa·s at 25°C
• Good compatibility with common MSLA/LCD printers
• Compatible with suitable DLP and laser-SLA systems using FEP/nFEP vats
• Straightforward alcohol cleaning
• Short 395–405 nm UV post-cure
• Multiple colors and finishes
• Useful for miniatures, prototypes, sculptures, and light industrial parts

Best For

1. General-purpose resin printing
2. Functional and visual prototypes
3. Tabletop miniatures and figurines
4. Digital sculptures
5. Detailed models
6. Light industrial and production parts

Technical Specifications

Important: Siraya Tech's current dedicated Fast TDS and the Fast product page show conflicting mechanical values. The dedicated TDS currently lists 64 MPa yield, 60 MPa break, 1700 MPa modulus, and 18% elongation, while the product page still displays an older set of 33 MPa yield, 31 MPa break, 1100 MPa modulus, and 20% elongation. This listing uses the dedicated TDS for the structured mechanical fields and records the conflict in the admin notes.

Note: These are manufacturer test values, not guaranteed design allowables. Printed-part performance depends on orientation, exposure, post-cure, geometry, color, printer, and test conditions.

Printing Compatibility

Siraya Tech designed Fast primarily for MSLA/LCD printing. The manufacturer also states that DLP and laser-SLA printers can use it when the vat uses an FEP or nFEP film.

Recommended Conditions

• Use a printer- and color-specific exposure profile
• Keep resin above approximately 20°C for easier, more consistent printing
• Mix the bottle thoroughly before pouring
• Stir resin that has been sitting in the vat before starting another print
• Increase bottom-layer exposure when printing in colder conditions
• Fast Navy Grey requires approximately 20% more exposure than regular Fast colors

Among indexed Print3DIndex printers, the ELEGOO Mars 5 Ultra is a relevant compact 405 nm MSLA platform for detailed models and miniatures. The larger ELEGOO Saturn 4 Ultra 16K offers more build area while retaining a high-resolution 405 nm resin workflow.

The Anycubic Photon P1 is another relevant 405 nm MSLA option, particularly when controlled resin temperature or higher-viscosity material capability is useful. Fast itself is a low-viscosity resin, so the P1's heated vat is not required specifically for this material, but stable resin temperature can still support repeatable exposure behavior.

Important: A resin being within the same UV wavelength range does not guarantee a correct exposure profile. Always calibrate or use Siraya Tech's validated settings for the specific printer and color.

Mechanical Profile

Siraya Tech describes regular Fast as non-brittle and general-purpose, but its own user guide explicitly says it is not a dedicated tough or engineering resin.

That distinction matters because the Fast family now includes separate variants with different mechanical priorities.

Current Dedicated TDS Values

The manufacturer currently publishes different values on the main product page, so these figures should be treated as current TDS values subject to manufacturer clarification rather than universal resin constants.

For parts where impact resistance is a higher priority, Siraya Tech Fast Tough is a separate formulation. Siraya Tech states that Fast Tough improves impact resistance by more than 50% relative to the regular Fast family and lists 40% elongation at break and 39 J/m notched Izod impact for that formulation.

Regular Fast vs Fast Tough vs Fast Mecha

The Fast family contains several distinct products that should not be merged into one catalog listing.

See the official Fast Tough product page if higher impact resistance is more important than the standard Fast balance.

Important: Fast Tough and Fast Mecha are separate formulations. Their mechanical values, exposure requirements, and intended uses should not be assigned to regular Fast ABS-Like Resin.

Processing and Handling

Siraya Tech recommends printing regular Fast above approximately 20°C for best results. The material can print at lower temperatures, but colder resin may require substantially more bottom-layer exposure.

Before printing:

• Shake the bottle thoroughly
• Mix resin that has been sitting in the vat
• Use the correct color-specific profile
• Check the selected layer height and printer exposure settings

Fast Navy Grey requires approximately 20% longer exposure than standard regular Fast colors according to the current user guide.

Cleaning

Siraya Tech recommends:

1. Remove excess resin with a soft brush.
2. Wash with approximately 95% ethanol or IPA.
3. Clean for about four minutes.
4. Dry the print completely with moving air.
5. Rewash if the dried surface remains sticky.

The manufacturer specifically warns that parts should be completely dry before post-curing.

Post-Curing

After cleaning and drying:

• Use 395–405 nm UV light
• Cure for approximately 1–2 minutes
• Standard curing in air is sufficient
• Water-submerged curing is not required for regular Fast

For the full manufacturer workflow, see the official Fast Resin user guide.

Safety and Storage

Uncured photopolymer resin should be handled according to the current manufacturer safety documentation. Siraya Tech provides product-specific safety data through its SDS library.

Keep the bottle sealed and away from direct light and extreme temperatures. Siraya Tech lists a two-year shelf life and recommends using the resin within approximately six months after opening for best performance.

Pigments and other components can settle during storage, so thorough mixing before use is important, especially for heavily pigmented colors such as Navy Grey and Creamy.

Color and Finish

Regular Fast is currently offered in several colors, including:

• Grey
• Navy Grey
• White
• Smoky Black
• Metal Grey
• Creamy

Siraya Tech's TDS also references Green as part of the regular Fast family, although current retail availability can vary by region.

Navy Grey and Creamy use heavier pigmentation for a smooth matte appearance and require especially thorough mixing. Navy Grey also needs longer exposure than the standard Fast colors.

Practical Printer Pairings

ELEGOO Mars 5 Ultra

The ELEGOO Mars 5 Ultra is a logical match for Fast when the priority is compact high-detail MSLA printing for miniatures, prototypes, and display models. Use a calibrated Siraya Tech profile rather than assuming another resin's exposure values.

ELEGOO Saturn 4 Ultra 16K

The ELEGOO Saturn 4 Ultra 16K provides a larger build area and 405 nm MSLA workflow. Its resin-heating system can help maintain stable resin conditions in cooler environments, but Fast still requires printer-specific exposure calibration.

Anycubic Photon P1

The Anycubic Photon P1 combines 405 nm MSLA printing with a temperature-controlled vat. It is relevant for users who want stable resin-temperature management and a larger engineering-oriented resin platform.

Limitations and Practical Considerations

• Regular Fast is not Siraya Tech's dedicated tough or engineering resin.
• Mechanical values currently conflict between Siraya Tech's dedicated TDS and product page.
• Fast Navy Grey requires longer exposure than standard Fast colors.
• DLP and laser-SLA compatibility requires a suitable FEP/nFEP film-based vat.
• Exposure settings are printer-, color-, and layer-height dependent.
• Heat resistance is moderate rather than high-temperature engineering grade.
• Post-curing is required to reach intended material performance.
• Transparent or specialty applications may be better served by a resin designed specifically for that purpose.
• Tougher applications should consider Fast Tough, Blu, Tenacious, or another engineering-focused Siraya Tech formulation rather than assuming regular Fast provides the same impact performance.

Comparison Section

Note: The comparison uses manufacturer-published values for the Siraya Tech products. Generic resin behavior varies substantially by formulation and curing process.

Callout Section

Recommended use: Choose Siraya Tech Fast ABS-Like Resin when you need an affordable, quick-printing, detailed general-purpose resin with less brittle behavior than a basic model resin. Choose Fast Tough or another engineering-focused formulation when repeated impact, higher toughness, or structural performance is the primary requirement.

Frequently Asked Questions