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Formlabs Flexible 80A Resin Form 4 1 L

Formlabs Flexible 80A Resin Form 4 1 L is an elastomeric SLA resin for printing soft inserts and fixtures. A fixture made from this resin protects a precision component and withstands repeated use. The V2 formula uses the technology of Form 4 series printers. The part returns to its shape after repeated deformation, and its surface is matte and non-tacky.

Key features and benefits

  • Rebound (pendulum method): 56% — The value is comparable to 80A cast urethanes, so the part returns to its shape after loading.
  • Tear strength: 28 kN/m — The value is twice that of the previous version, so the part better resists tearing under tension.
  • Elongation at break: 230% — This figure is also twice that of the previous version, so parts withstand stretching without breaking.
  • Fatigue life (Ross Flex): 5 times more cycles — This is relative to the previous version: covers and fixtures withstand repeated loading for longer.
  • Ageing resistance: after 1000 h of accelerated indoor ageing, the part retains 87% of its initial elongation at break. This supports a long service life for covers and fixtures.
  • Appearance and surface: the matte black surface of parts made from Formlabs Flexible 80A Resin Form 4 1 L is non-tacky. It reproduces the look and feel of cast urethane.
  • Updated V2 formula: rebound is 4 times higher than in the previous version, and appearance and ageing are improved.

Applications

Parts made from Formlabs Flexible 80A Resin Form 4 1 L withstand repeated stretching.

A man's hands hold a white housing with a black mesh texture on the side and pull a flexible black loop handle, against a cutting mat with a grid.
Flexible printed part in hands: in the photo, hands stretch the black flexible handle of a white printed part with mesh overlays, clearly showing the elasticity of the material.

Elastomer tooling works with precision metal parts.

A black holder part fits tightly around a metal piston and connecting rod, while a calliper, a ruler on a mat and a red-and-black pencil lie next to it on a wooden table.
Holder for a piston and connecting rod: a black printed holder with a metal piston and connecting rod inserted, on a workbench next to a calliper and an assembly mat, demonstrating the use of the resin for functional parts and tooling.

Protective connector caps are an example of covers made from this material.

Black flexible frames with plugs on straps lie on a wooden table next to a ruler and a pencil, and one of them is fitted on a connector socket.
Flexible protective connector covers: black flexible parts with attached plugs, one of which is fitted on a panel socket, showing the use of the elastomeric resin for protective covers.

Resilient housings serve as a protective shell for devices.

Hands hold a grey handheld device labelled IRDI System with indicators and three buttons, while an empty black housing, screws and a ruler lie on the wooden table.
Handheld device in a dark housing: an IRDI System handheld device with a dark housing and control buttons, with an empty shell lying next to it, showing an example of the use of elastic housing parts.
  • Functional prototypes and end-use parts: the resin is comparable to 80A cast urethanes and hard rubber, and the parts are tear-resistant.
  • Soft inserts, tooling and fixtures: an elastic holder protects precision components and finished surfaces and withstands repeated use.
  • Seals, gaskets and covers: the part recovers its shape after compression and withstands 5 times more cycles than the previous version.
  • Shock-absorbing bumpers and housings: 56% rebound returns the bumper to its shape, and tear resistance keeps the housing intact.
  • Overlays and handles: the matte black non-tacky surface feels like cast urethane to the touch, so it is suitable for handles and overlays.

Compatible accessories and mounts

Formlabs Flexible 80A Resin Form 4 1 L is printed using SLA technology on compatible equipment.

  • Printers: Form 4, Form 4B, Form 4L, Form 4BL.
  • Build platforms: Form 4 Build Platform, Form 4 Flex Build Platform, Form 4L Build Platform, Form 4L Flex Build Platform.
  • Tanks: Form 4 Resin Tank, Form 4L Resin Tank.

The new version of the material is presented in the video below.

Video: the new version of Flexible 80A Resin

Technical specifications

ParameterValue
Compatible build platformForm 4 Build Platform, Form 4 Flex Build Platform, Form 4L Build Platform, Form 4L Flex Build Platform
Compatible tankForm 4 Resin Tank, Form 4L Resin Tank
Compatible printerForm 4, Form 4B, Form 4L, Form 4BL
Printing technologySLA
CategoriesElastomers
Ultimate tensile strength10 MPa
Elongation at break230%
Key featuresResilient and tear-resistant
Comparable to80A cast urethanes and hard rubber
Recommended applicationsResilient bumpers and housings, soft inserts and fixtures, shock-absorbing overlays and handles, seals and gaskets

Why buy Formlabs Flexible 80A Resin Form 4 1 L from EXPERT3D?

EXPERT3D has supplied professional 3D equipment since 2012. Formlabs Flexible 80A Resin Form 4 1 L resin is available to order. We deliver across Spain and EU countries. As an official Formlabs representative, we guarantee 100% authenticity and a fair price. We also provide authorised service and an official warranty. Our specialists offer advice before purchase and help you choose a compatible platform and tank. After purchase, we provide service support. Order original spare parts and consumables on the website so that your equipment never stands idle.

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