SPECTRA · DENTAL RESINS

Master Model resin

Dental models for laboratory planning, checking fit and presenting restorative work.

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Application: Master Model resin — Application image from the catalogue

Material highlights

Defined anatomical detail
A choice of six model colours
A stable visual reference for the digital workflow

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SPECTRA · SHADE GUIDE

Find your shade

Select a tooth to choose your pack and quantity.

Master Model resin6 shades

Outlined teeth do not have a colour preview yet. You can still select them by name.

Colours are estimates from the supplied Spectra guide and may vary by screen. Confirm the final shade with a physical sample.

Colours and pack weights follow the catalogue; reference codes and availability are confirmed with the team.

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Technical reference

Model formulations in the technical reference are distinct. Confirm the exact Master Model formulation before selecting a print profile.

Mechanical properties

Property	Ortho Model · IPA	Pro Model	Water-Washable Ortho
Tensile strength	37.88 MPa	25.9 MPa	31.44 MPa
Flexural strength	57.91 MPa	22.2 MPa	40.82 MPa
Flexural modulus	1699.7 MPa	616.4 MPa	1091.45 MPa
Elongation at break	6.41 %	25.5 %	7.65 %
Hardness	80–88 Shore D	80–85 Shore D	80–85 Shore D

Selected reported values. Results depend on formulation and specimen conditioning. Reported mechanical values carry a ±10% tolerance; hardness is presented as a range. Testing references: ASTM D638 (tensile), D790 (flexural) and D2240 (hardness).

Reference print settings & test conditions

Catalogue reference settings for matching materials, tested on ELEGOO MARS 3. Confirm resin variant and batch, and calibrate on the actual printer; these are not ready-to-use GK3 or universal printer presets.

Property	Ortho Model · IPA	Pro Model	Water-Washable Ortho
Bottom exposure	25–35 s	20–30 s	25–35 s
Normal exposure	2.5–3.5 s	2.5–4.5 s	2.5–3.5 s

Layer height	0.05 mm
Bottom/normal lift distance	6 mm
Bottom lift speed	60 mm/min
Normal lift	80 mm/min
Retract speed	150 mm/min
Rest after retract	2–3 (unit not stated in source)
Test platform	ELEGOO MARS 3
Test screen	6.6-inch monochrome LCD
Irradiance	3,500–4,500 µW/cm²

Lift distance by screen size

Below 7 inches	6 mm
7–10 inches	8–10 mm
10.1 inches	11 mm
13.3 inches	14 mm
15 inches	15 mm

These distances apply to the conventional release-film setup described in the source. Gingiva Mask calls for a 20–30% increase in lift distance. Validate against the actual machine and film. Bottom layer count = bottom thickness ÷ layer height + 1. For 0.40 mm at 0.05 mm per layer: 9 bottom layers. Mix resin thoroughly before printing. Run a calibration specimen whenever material, printer, light output, layer height or release film changes. Check detail, fit and separation before production.

Test specimen conditions

Source test environment	23 ± 2°C
Relative humidity	50 ± 5%
Test specimen curing medium	water
Curing time per side	1 min per side
Wavelength	405 nm
Irradiance	200 mW/cm²

These are test-coupon conditions. They are not a validated clinical post-curing protocol for every SPECTRA resin.

Washing & post-curing

Select the wash medium from the exact resin instructions; the reference distinguishes IPA-cleanable materials from water-washable model resin. Remove residual liquid, dry and inspect before curing. Final properties depend on wavelength, irradiance, time and part geometry; clinical applications require their validated protocol. Follow the safety data sheet and collect contaminated wash liquid for appropriate disposal.

SPECTRA · DOCUMENTS