Free U.S. shipping on orders over $200 · Mutual NDA standard before any file review.
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Out of stock
In every order
- 1 kg sealed bottle Genuine KeyPrint KeyTray, translucent blue.
- Validated settings Nexa3D LSPc print + post-cure profile and lot documentation.
Materials, Dental, DLP 3D Printing Materials, Engineering, Medical, Resin 3D Printing Materials · LSPc, DLP, XiP
Nexa3D KeyTray Resin 1kg
Strong. Biocompatible. No preliminary cast. KeyTray prints custom individual impression trays straight from the digital scan — Class I biocompatible, with 85 MPa flexural strength and Shore D 86 so the tray survives seating and removal from an undercut without distorting the impression. Compatible with all impression materials; compound waxes and border-molding materials adhere as they would to a conventional tray.
1 kg bottle, translucent blue. Currently out of stock — contact us for the next lot date.
$277
Price held 7 days after order.
NDA standard
Next lot date confirmed on request
What your dental lab actually checks
What your dental lab actually checks
Rigid enough to pull, kind enough to seat
KeyTray holds its shape through seating and removal — tensile strength 62 MPa, flexural strength 85 MPa, Shore D 86 — so the impression is not distorted on the way out. Class I biocompatible, and compound waxes and border-molding materials adhere to it as they would to a conventional tray.
A dental materials engineer on the line
Moving custom trays to a digital workflow? Our engineers run these KeyPrint workflows and will confirm exposure, post-cure and tray thickness — sub-4h reply, NDA standard.
About this product
KeyTray is a strong, biocompatible (Class I) 3D printing resin for producing custom individual impression trays quickly and precisely. It is stiff enough to survive seating and removal from the oral cavity without distorting the impression, and it works with every common impression material. Supplied in a 1 kg bottle for Nexa3D LSPc printers.
Why dental labs choose KeyTray
A tray that holds its shape so the impression stays true.
Strong enough to pull
Tensile strength 62 MPa, flexural strength 85 MPa and Shore D 86 let the tray take the force of removal from an undercut without flexing or snapping.
Class I biocompatible
Formulated for safe short-term contact in the oral cavity, so trays go straight from post-cure to the chair.
No preliminary casting
Print the tray directly from the digital scan — you skip pouring a preliminary model just to thermoform or hand-build a tray.
Materials stick to it
Compatible with all types of impression material, and compound waxes and border-molding materials adhere to the tray as they would to a conventional one.
From scan to seated tray
Validated print and cure profiles ship with the resin — no parameter guesswork.
Step 01
Design & print
Design the custom tray from the intra-oral or model scan and print it on your Nexa3D LSPc printer (385–405 nm) with the validated exposure profile.
Step 02
Wash & post-cure
Wash in IPA, air-dry, then final-cure under a 250–390 nm unit to develop full strength and biocompatibility.
Step 03
Border-mold & impress
Add compound wax or border-molding material as usual, then take the final impression — the tray holds shape through seating and removal.
Physical & mechanical properties
| Property | Standard | Value |
|---|---|---|
| Tensile modulus | ASTM D638 | 2056 MPa |
| Tensile strength | ASTM D638 | 62 MPa |
| Elongation at break | ASTM D638 | 26% |
| Flexural modulus | ASTM D790 | 1913 MPa |
| Flexural strength | ASTM D790 | 85 MPa |
| Shore hardness (0s, 3s) D scale | ASTM D2240 | 86 |
| Biocompatibility class | — | Class I |
| Color | — | Translucent blue |
Values from the Keystone KeyTray technical data sheet. Printed-part properties depend on correct exposure and post-cure.
Typical applications
Indicated for custom individual impression trays.
Custom impression trays
Individual, patient-specific
Full-arch trays
Complete denture cases
Partial trays
Sectional impressions
Implant impression trays
Open- and closed-tray
Border-molded trays
Compound wax compatible
Denture workflows
Final impression stage
Building the rest of the dental workflow?
The KeyPrint family runs the same validated print and cure process.
ModelsKeyModel UltraView resin →
SurgicalKeyGuideCompare resin →
SplintsKeySplint SoftCompare resin →
SurgicalKeyGuideCompare resin →
SplintsKeySplint SoftCompare resin →
Moving custom trays to a digital workflow? Tell us your printer and impression materials — a dental materials engineer will confirm exposure, post-cure and tray thickness so the first trays seat and pull cleanly. Sub-4h reply, NDA standard.
Why source KeyTray through Additive Plus
- Genuine Keystone KeyPrint resin, matched to Nexa3D LSPc print and cure profiles — not a re-labeled substitute.
- Currently out of stock — tell us your quantity and we will confirm the next lot date and hold it for you.
- Application engineers who run these dental workflows in-house — exposure, post-cure and tray-design support, sub-4h reply.
- Volume pricing and official purchase orders handled for multi-bottle and lab-group orders.
| Brand | Nexa3D |
| Available colors | Translucent blue |
| Weight | 1 kg |
| Country of origin | USA |
| Printing Materials | Resins |
| Platform | NX |
| Technology | LSPc, DLP, XiP |
Printing custom trays every week?
Tell us your monthly tray count — we'll reserve lot supply as it lands, set volume pricing and PO terms so a stock gap never stalls a denture case.
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From labs printing KeyTray
Unedited feedback from labs running custom trays digitally.
★★★★★
Cutting the preliminary cast out of the denture workflow saved us a full day per case.
DR
Dana R. Lab Manager · Denture Lab
★★★★★
Trays pull out of deep undercuts without flexing. Compound sticks to them just like an acrylic tray.
MP
Marcus P. Dental Technician · Full-Service Lab
★★★★★
The blue tint makes it obvious where material coverage is thin before the impression sets.
EV
Elena V. Production Lead · Digital Dental Lab
Common questions
Don't see yours? Email [email protected] — NDA standard, typical reply within 4 hours.
Which printers is KeyTray compatible with?
KeyTray is a light-curing resin for DLP/LSPc printers using UV wavelengths of 385–405 nm, and is supplied here in the Nexa3D NX/NXE configuration with Nexa3D's validated exposure profile. If you're unsure whether your machine and settings match, our dental materials engineer will confirm before you order.
Is KeyTray biocompatible?
Yes — KeyTray is a Class I biocompatible resin, formulated for safe short-term contact in the oral cavity while taking an impression. Full biocompatibility depends on correct washing and post-curing, so follow the Keystone protocol supplied with the resin before the tray goes near a patient.
Does KeyTray work with all impression materials?
KeyTray is compatible with all common types of impression material. Compound waxes and border-molding materials adhere to the printed tray the same way they do to a conventional one, so you can border-mold before taking the final impression without changing your technique.
Do I still need a preliminary cast?
No. The tray is designed and printed directly from the intra-oral or model scan, so you skip pouring a preliminary model purely to thermoform or hand-build a tray. That removes a full lab step and typically improves impression accuracy because the tray is built to the actual arch.
How do I wash and post-cure KeyTray?
After printing, wash the tray in IPA and air-dry, then final-cure in a post-cure unit using 250–390 nm UV. Full post-cure is what develops the strength the tray needs to survive removal from an undercut, so follow the Keystone KeyTray time and temperature guidance rather than under-curing.
What color is KeyTray and why does it matter?
KeyTray prints translucent blue. The tint gives clear visual contrast against impression material and tissue, which makes it easy to see material coverage and confirm the tray is fully seated before the impression sets.
KeyTray shows out of stock — when can I get it?
This item is currently out of stock. Tell us the quantity you need and we will confirm the next incoming lot date and reserve it against your order. If your case load can't wait, our engineer can suggest an alternative tray workflow from the KeyPrint family.
Place your order, or talk to an engineer first
Order Nexa3D KeyTray Resin 1kg direct, or talk to materials engineer