Spectrum S-Flex 85A

Flexibility with outstanding impact resistance and thermal insulation

Spectrum S-Flex 85A is a printing filament based on thermoplastic polyether polyurethane (TPU). In 3D printing, S-Flex 85A is known for being easy and reliable to print, with a low risk of print defects. One of the material's biggest advantages is excellent adhesion of the first layer to the build surface, whether it is made of glass, steel, plastic or another material.

Low shrinkage during printing and high flexibility significantly reduce the risk of edge curling (warping). The number 85A in the name refers to the Shore A hardness of the material, which classifies it as a rigid elastomer. This hardness reduces the likelihood of the filament deforming in the printer's feeding system and makes it possible to print faster than with softer elastic materials.

Parts printed from Spectrum S-Flex 85A have very good resistance to hydrolysis, high recyclability and outstanding resistance to repeated mechanical stress. The material is therefore particularly well suited to impact protection, edge guards, seals, protective parts with high chemical resistance and heat-insulating components.

Key features

• Very good resistance to hydrolysis.

• Up to 650% elongation at break.

• Shore A hardness: 85.

• High tensile and tear strength.

• Low shrinkage during printing.

• Resistant to many common industrial oils and chemicals.

• Less stringing during printing.

Particularly well suited for

• Seals with high chemical resistance.

• Shock-absorbing and energy-damping components.

• Functional spare parts.

• Bumpers and vibration dampers.

• Guides and guideways.

• Protective casings.

• Snap-fit fasteners.

• Sleeves and tubes.

• Hinges.

• Flexible bumpers and adapters.

• Stiffer seals.

• Springy and shock-absorbing components for machine building and model making.

• Strong flexible straps and bands.

• Guards and housings for various devices.

Technical data sheet

Safety data sheet