Loctite (Henkel)

3D 3843 HDT60 Photoplastic

High toughness photoplastic, Origin One · US · manufacturer-sourced

Check your container: This countdown is for the High toughness photoplastic, Origin One variant. Similar-looking versions may have different times.

How long should Loctite (Henkel) 3D 3843 HDT60 Photoplastic be left to cure?

Short answer

Curing period complete: 2–20 minutes after application.
Maker & casting resin

Cast-and-demold plan

Gel, demold and full cure are separate days

  1. Mix the High toughness photoplastic, Origin One to ratio and pour
  2. Wait for the demold time
  3. Sand or finish after full cure

This product’s stated stages Quoted at 73°F

  • Curing period2–20 minutes

Worth noticing: The manufacturer states only one timing here (curing period, 2–20 minutes); nothing else is inferred.

Common mistake: Demolding early and leaving a soft, tacky casting that never fully hardens.

Maker & casting resin

Project stage ladder

Demolding, handling, finishing and final use may occur at different times

ShapeSetFinishUse

For 3D printing, tough parts, and Origin One, identify which stage the stated period 2–20 minutes milestone actually unlocks. Earlier handling does not prove final cure.

Time demold and cure

When did you mix and pour?
Conditions that affect drying
Where?
Thickness

Stated times

  • Curing period complete2–20 minutes

From Loctite (Henkel) data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.

Manufacturer website: loctiteproducts.com

Conditions & fine print
  • Stated conditions: 73°F (23°C)
  • UV post-cure settings depend on the lamp and the validated workflow. Follow the current Loctite 3D printing workflow documents.
  • Region US. Formulas can differ between countries; check your container.
  • Curing period complete: Matte black. White and clear have their own settings.
  • Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
  • Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.

Confirm this is your product

Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.

Exact listing
Loctite (Henkel) 3D 3843 HDT60 Photoplastic
Variant
High toughness photoplastic, Origin One
Region
US
Listed use
3D printing, tough parts, Origin One
Timed stages recorded
cure period
Source checked
2026-10-25

Documentation: Technical data sheet copy · Version 2022/11/13

Condition attached to the stated time: Matte black. White and clear have their own settings.

About this product

A photoplastic where the post-cure time depends on the lamp and the color: matte black takes 2 minutes per side under a mercury arc flood but 20 minutes under a 405 nm LED, white takes 4 minutes per side under another lamp and clear takes 4 minutes per side. No thermal step is listed.

Using this specific product

Loctite (Henkel) 3D 3843 HDT60 Photoplastic is listed here as the High toughness photoplastic, Origin One version for 3D printing, tough parts, and Origin One. For casting resin, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.

Before you start

  • Confirm the package says High toughness photoplastic, Origin One; related versions can use different timing.
  • For 3D printing, tough parts, and Origin One, pay particular attention to accurate mixing, mold material, mass and room temperature.
  • Matte black. White and clear have their own settings.

How to check readiness

Check the casting itself for flex or tack before demolding. The data sheet lists a matte black UV post-cure of 2 minutes per side under a Dymax 5000 EC Flood and 20 minutes under a 405 nm Loctite CL36 LED.

Avoid this mistake

Demold time is not necessarily full mechanical cure.

Keep going

Questions

How long should this product be left to cure?

Loctite (Henkel) states: The data sheet lists a matte black UV post-cure of 2 minutes per side under a Dymax 5000 EC Flood and 20 minutes under a 405 nm Loctite CL36 LED. Conditions: Matte black. White and clear have their own settings.. These are the manufacturer’s stated times, not a guarantee.

Does LOCTITE 3D 3843 need a thermal post-cure?

The data sheet does not list one. It gives only UV post-cure settings and says validated workflows must be followed.

What affects how long this product takes to dry or cure?

UV post-cure settings depend on the lamp and the validated workflow. Follow the current Loctite 3D printing workflow documents. Follow the product label for your conditions.