65D Resin

65D resin from Siraya Tech gives you a flexible photopolymer that holds its shape under load. Rated at Shore 65D, this resin sits in the sweet spot between rigid engineering resins and soft elastomers. It's tough enough for functional parts but flexible enough to absorb impact without cracking.

Use it for bumpers, vibration dampeners, living hinges, and any part that needs controlled give. This 405nm UV-curing resin works with all standard LCD, DLP, and SLA printers.

Controlled Flexibility for Functional Parts

• Shore 65D hardness means parts flex under stress but return to shape without permanent deformation.
• Absorbs impact better than rigid resins, reducing the chance of brittle failure.
• Works well for gaskets, protective covers, and snap-fit parts that need to survive repeated bending.
• Thin objects can bend 360 degrees without shattering, while thick objects show superb impact resistance.

Consistent Results Across Every Print

• Even shrinkage (about 6% per volume) keeps parts accurate and repeatable.
• Siraya Tech resins undergo extensive validation to ensure consistent mechanical properties.
• Good fluidity in the vat improves layer adhesion and reduces print failures.
• Compatible with 405nm LCD and DLP printers from Elegoo, Anycubic, Phrozen, and more.

Mixes Well to Match Your Exact Needs

• Blend with standard or tough resins for a custom hardness profile.
• Mixing exposure time can be estimated by the weighted average of each resin's exposure time.
• Siraya Tech resins are specifically developed for mixing, so compatibility is built in.
• Often used as an additive to increase the toughness of other resins.

Explore Related Collections

• Flexible Resin 3D Printing — Browse flexible resins across a full range of Shore hardness levels.
• Durable Resin — Resins designed for longevity and repeated mechanical stress.
• Elastic Resin 55A Shore — Softer elastic resin for parts that need more rubber-like give.
• Engineering Resin — High-performance resins for demanding functional applications.

Frequently Asked Questions on 65D Resin

What is 65D resin used for?

65D resin is used for functional parts that need some flexibility without being soft. Common uses include vibration dampeners, protective bumpers, living hinges, snap-fit enclosures, and wearable prototypes. It's ideal when rigid resin would crack under impact but soft resin would deform too much.

Is 65D resin flexible or rigid? 

It's semi-rigid. On the Shore hardness scale, 65D falls between hard rubber and stiff plastic. Parts printed in 65D resin feel firm but can flex under hand pressure. They won't fold or stretch like rubber, but they won't snap like standard rigid resin either.

Can I mix 65D resin with other resins?

Yes. Siraya Tech resins are designed for mixing. Blending 65D resin with a harder resin increases rigidity, while mixing it with a softer resin adds more flexibility. Estimate the exposure time by weighting each resin's exposure time by its ratio in the mix.

What printers are compatible with 65D resin? 

Any 405nm LCD, DLP, or SLA resin printer works. This includes models from Elegoo, Anycubic, Phrozen, Creality, and Peopoly. Check available print setting profiles for your specific printer on the Siraya Tech support page.