Formlabs® Flexible 80A

Formlabs®

Flexible 80A Resin

An SLA resin well-suited for cushioning, damping and shock absorption applications

In Formlabs' library of SLA materials, Flexible 80A resin is one of the most stiff soft-touch material with an 80A Shore durometer to simulate the flexibility of rubber or TPU. Parts 3D printed in Flexible 80A can withstand bending, flexing, and compression, even through repeated cycles. It is recommended for cushioning, damping, and shock absorption applications.

Flexible 80A.

Alternative to Mold Making of Hard, Flexible Prototypes.

With Formlabs Flexible 80A resin, you can eliminate outsourcing and molding of silicone, urethane and rubber parts by bringing in-house SLA 3D printing and getting parts or prototypes done in hours.

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Material Properties

Proto3000_Icons_Tensile Strength

ULTIMATE TENSILE STRENGTH
8.9 MPa

Proto3000_Icons_Elongation at Break

ELONGATION AT BREAK
120.0%

Proto3000_Icons_Hardness

SHORE HARDNESS
Shore 80A

Proto3000_Icons_Tear Strength

TEAR STRENGTH
22 kN/m

Performance Scale

Stiffness
Flex
Durability
Spring back (Slow to Fast)

Appearance

hex Transparent

Why Choose Flexible 80A Resin?

Soft and Strong

With Flexible 80A SLA 3D printing resin, you can stretch and compress parts through repeated cycles without cracking.

A Great Elastomeric 

Flexible 80A formulation allows bendable parts to return to their original shape slowly. 

A See-through, Transparent Appearance

With Formlabs Flexible 80A resin, you can manufacture clear objects or parts in hours that offer visibility into the models.

Image of transparent lattice-type cubes 3D printed with Formlabs Flexible 80A resin


Over 100,000,000 Parts Printed with Formlabs Technology

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Applications

Start producing in-house hard yet flexible prototypes with Flexible 80A resin! You can consider this SLA 3D printing resin for applications like:

Handles, grips, and overmolds

Seals, gaskets, and masks

Cushioning, damping, and shock absorption

Cartilage, tendon, and ligament anatomy

Consumer products, wearables (custom earphones, swimming goggles etc)

 

Image of parts 3D printed with Formlabs Flexible 80A resin

Material Variants | 3D Printer Compatibility

Image of Formlabs Flexible 80A resin cartridge

Flame Retardant V1, 1L

Compatible with Form 4 

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Image of Formlabs Flexible 80A resin cartridgeFlame Retardant Resin, 1L

Compatible with Form 3 Series

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Material Safety Datasheets

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Post-Processing

FORM WASH SETTINGS

DURATION

10 minutes + 10 minutes

NOTES

Make sure to wash the parts 3D printed in Flexible 80A Resin twice, and it’s better to use fresh solvent for the second wash. If you used TPM for washing, the Flexible 80A Resin will still have a waxy feel no matter the layer thickness, so you’ll need to post-cure it to get rid of the waxiness.

form wash & form cure form wash L & form cure L

FORM CURE SETTINGS

DURATION

10 minutes

TEMPERATURE

60 °C

NOTES

Post-curing ensures optimal mechanical properties and proper functionality for parts printed in engineering resin (such as those in the Rigid, Tough, Durable, and Flexible & Elastic families). Only one post-curing time is recommended for Flexible 80A Resin.

Technical Specifications¹

 
Green
Post-Cure2
Ultimate Tensile Strength
3.7 MPa 8.9 MPa
Ultimate Tensile Strength
3.7 MPa
8.9 MPa
Stress at 50% Elongation
1.5 MPa 3.1 MPa
Stress at 50% Elongation
1.5 MPa
3.1 MPa
Stress at 100% Elongation
3.5 MPa 6.3 MPa
Stress at 100% Elongation
3.5 MPa
6.3 MPa
Elongation at Break
100% 120%
Elongation at Break
100%
120%
Shore Hardness
70A 80A
Shore Hardness
70A
80A
Compression Set (23 °C for 22 hours)
Not Tested 3%
Compression Set (23 °C for 22 hours)
Not Tested
3%
Compression Set (70 °C for 22 hours)
Not Tested 5%
Compression Set (70 °C for 22 hours)
Not Tested
5%
Tear Strength3
11 kN/m 24 kN/m
Tear Strength3
11 kN/m
24 kN/m
Ross Flex Fatigue at 23 °C
Not Tested >200,000 cycles
Ross Flex Fatigue at 23 °C
Not Tested
>200,000 cycles
Ross Flex Fatigue at -10 °C
Not Tested >50,000 cycles
Ross Flex Fatigue at -10 °C
Not Tested
>50,000 cycles
Bayshore Resilience
Not Tested 28%
Bayshore Resilience
Not Tested
28%
Glass Transition Temperature (Tg)
Not Tested 27 °C
Glass Transition Temperature (Tg)
Not Tested
27 °C

¹Material properties can vary with part geometry, print orientation, print settings and temperature.
²Data was obtained from parts printed using Form 3, 100 μm, Flexible 80A settings, washed in Form Wash for 10 minutes and post-cured with Form Cure at 60 °C for 10 minutes.
³Tensile testing was performed after 3+ hours at 23 °C, using a Die C specimen cut from sheets.