Flexible 80A Resin V2 is a new material formulation that leverages the technology of Form 4 Series printers to deliver 2x higher tear strength, 2x higher elongation at break, 4x higher rebound, and improved aesthetics and aging compared to the previous generation. It also survives 5x more Ross Flex fatigue cycles than its predecessor.

The material rivals the look, feel, and function of 80A cast urethanes and hard rubbers. Its Shore A hardness, elongation at break, and pendulum rebound closely match those of a benchmark 80A cast urethane (Smooth-On Task 16). The detailed side-by-side comparison on the product page shows the specific mechanical values for each material.

The V2 formulation shows strong long-term performance. Parts retain 87% of their initial elongation at break after 1,000 hours of accelerated indoor aging testing, and the material withstands 2,808 Ross Flex fatigue cycles, 5x more than the previous generation.

Parts printed in Flexible 80A Resin V2 have a matte, black finish with tack-free surfaces, closely matching the look and feel of traditional cast urethanes.

The material is designed for resilient bumpers and enclosures, soft inserts and fixtures, shock-absorbing padding and grips, seals and gaskets, and tear-resistant functional prototypes and end-use parts. It is well suited for any application that requires repeated bending, tension, or compression.

Flexible 80A Resin V2 is compatible with the Form 4, Form 4B, Form 4L, and Form 4BL printers. It works with the Form 4 Resin Tank, Form 4L Resin Tank, Form 4 Build Platform, Form 4 Flex Build Platform, Form 4L Build Platform, and Form 4L Flex Build Platform.

Formlabs offers a range of elastomeric resins for different hardness requirements. Flexible 50A Resin is a softer, translucent elastomer with a 50A Shore durometer suited for prototyping parts that mimic soft rubbers and silicones. Silicone 40A Resin is a 100% silicone material with excellent chemical and thermal resistance. You can compare all Formlabs materials to find the best fit for your application.

Post-processing involves two main steps. First, wash the part using isopropyl alcohol or an ether-based solution to remove uncured resin from the surface. Formlabs Form Wash or Form Wash L are both compatible. Second, post-cure the part using a Form Cure or Form Cure L unit. Post-curing is essential for parts to achieve their full strength and intended functional properties by completing the chemical reaction initiated during printing.

Wash time settings are available on the Formlabs support site for Form Wash and Form Wash L. Cure settings are available separately for Form Cure V1, Form Cure V2, Form Cure L V1, and Form Cure L V2.

You can request a sample part directly from Formlabs to evaluate the look, feel, and performance of the material for your specific application. Technical Data Sheets are also available through the Formlabs materials data sheets page. For pricing information, visit the Formlabs store or contact the sales team.