Copymaster3D Resin UV Flex in the Light Grey shade is a flexible UV resin designed for LCD/DLP 3D printers operating at a wavelength of 395-405 nm. It offers a Shore hardness of 65-75D, elongation at break of up to 130%, and low shrinkage, allowing you to print flexible and durable models with sharp details and a silky matte surface. It can be mixed with standard or Tough resins to reduce brittleness of prints.

Flexible UV resin with high strength

Copymaster3D Flex UV Resin belongs to resins that retain significant flexibility after curing. The material achieves a Shore hardness of 65-75D with elongation at break of around 130%, making it suitable for prints that must flex, bend, and not break under load. Compared to conventional photopolymers, it provides higher impact toughness and better strength of finished parts.

Compatibility with LCD and DLP printers 395-405 nm

The resin is optimized for UV sources with a wavelength of 395-405 nm, i.e. the vast majority of home and semi-professional SLA/LCD printers. It works seamlessly on machines from Anycubic, Creality, Phrozen, Zortrax, Uniz, or Photocentric. Compatibility includes older RGB LCD panels as well as modern monochrome screens, including 6K and 8K.

Mixability with other resins

Flex UV Resin can be combined with Standard or Tough resins from Copymaster3D to reduce the brittleness of finished parts. You can adjust the mixing ratio according to the desired hardness and flexibility - from fully flexible prints to a slightly more elastic version of rigid resin. Ideal for prototypes of functional parts, seals, grippers, or flexible joints.

Fast curing and low shrinkage

Exposure time on monochrome LCDs ranges between 4-12 seconds per layer, ensuring decent print speed even for larger models. The material exhibits low shrinkage, so prints maintain accurate dimensions and do not deform during curing. After printing, we recommend post-curing in a UV chamber for 2-5 minutes, or in direct sunlight for 10-20 minutes.

Detailed surface with a silky matte appearance

Homogeneous pigmentation throughout the entire bottle ensures consistent color across the whole batch. Printed parts have a silky matte surface that is pleasant to the touch and eye and does not require complicated post-processing. The light grey Light Grey shade is popular among modelers who want a neutral base for subsequent airbrush or acrylic painting.

Ideal applications

Flexible resin can be used wherever you need flexible properties combined with the sharp detail of SLA printing - typically for damping elements, flexible joints, ergonomic grips, cases, seals, cosplay accessories, or functional prototypes. The material is also popular among creators of figurines and models, where thin parts are at risk of breaking off.

Post-processing and cleaning

After printing, clean the prints in isopropyl alcohol (IPA) or in a specialized resin cleaner, for example from PrimaCreator. Then perform post-curing under UV light. We recommend using nitrile gloves and working in a well-ventilated room - liquid resin can irritate the skin and eyes.

Technical parameters

Parameter	Value
Manufacturer	Copymaster3D
Material type	Flexible UV resin
Color	Grey - Light Grey
Weight / volume	0.5 kg / 500 ml
UV wavelength	395-405 nm
Hardness (Shore D)	65-75D
Elongation at break	approx. 130%
Exposure time / layer	4-12 s (mono LCD)
Post-curing in UV chamber	2-5 minutes
Post-curing in sunlight	10-20 minutes
Cleaning	IPA or resin cleaner
Compatibility	LCD/DLP printers (RGB and mono)
EAN	5060848215436
Product code	1-pri_0051-3

Package contents

1× bottle of Copymaster3D Resin UV Flex 0.5 kg (500 ml) in the Light Grey shade. If you are looking for additional materials such as PLA, PETG, flexible TPU filaments, or tough technical materials ABS and ASA, you will find them in our categories.