Flex-It 90 Semi-Rigid Urethane Casting Resin, 1 Gallon, Abrasion & Tear Resistant, Ideal for Molds, Seals, Gaskets, Rollers, Prototypes, Tough Resin for Epoxy Projects, Crafts, and DIY Casting

SPRESIN Flex-It 90 is a semi-rigid urethane casting resin engineered for abrasion resistance, tear strength, and consistent performance in both thick and thin castings. This two-part resin system cures into a tough material that holds its shape under pressure, making it a favorite for casting molds, gaskets, rollers, seals, and functional parts that experience frequent use or mechanical stress. Unlike softer urethanes, Flex-It 90 offers rigidity in mass castings while maintaining flexibility in thinner cross-sections. This makes it incredibly versatile for creators who need strength in one area and bendability in another. It’s commonly used in both prototyping and production settings, thanks to its reliable performance under strain, vibration, and repeated motion. Flex-It 90 also stands out for its abrasion resistance, making it ideal for molds that need to handle tough materials or repeated demolding. Whether you're creating urethane parts, high-use gaskets, or edge-molded rollers, this resin provides clean handling and consistent results with every pour. Its solid chemical resistance also makes it suitable for casting in environments that involve oils or other solvents. This 1 Gallon kit is a smart choice for medium-scale casting or building semi-rigid parts with consistent performance. Whether you're exploring alternatives to epoxy or scaling up your DIY prototyping, SPRESIN Flex-It 90 delivers strong, semi-rigid performance with pro-grade durability and ease of use.

• Abrasion-Resistant Strength – Flex-It 90 is a semi-rigid urethane resin built for durability. Excellent for molds, gaskets, and rollers where abrasion resistance and tear strength are essential.
• Semi-Rigid Versatility – Rigid in thicker applications, yet flexible in thinner molds, Flex-It 90 adapts to different casting needs. Perfect for parts that need form retention with slight give.
• Ideal for Repeated Use – Designed for tough environments, this casting resin resists wear, impact, and chemical exposure. Great for reusable molds, seals, or parts exposed to stress.
• Easy 2-Part System – Mix and pour with ease. Flex-It 90 cures smoothly and performs reliably, making it ideal for professionals, prototypers, and advanced DIY casting applications.
• Mid-Sized Casting Ready – This 1 Gallon kit gives you more resin for medium projects, repeated mold runs, or crafting abrasion-resistant parts in bulk.