Oligomer resin proves worthy of 3-D inject printing systems
Dymax
Bomar BR-970H is a stain-resistant oligomer with high modulus, making it ideal for 2-D and 3-D inkjet printing applications and graphic art applications (photo; p. 28). As a low-viscosity, di-functional, aliphatic urethane acrylate, BR-970H offers rapid cure and non-yellowing properties for higher optical clarity and color stability. Its relatively low shrinkage (0.7%) during curing makes it ideal for 3-D printing applications where good mechanical properties and aesthetics are expected, says the company. It also provides low water absorption (0.15), making it perfectly suitable for applications where 3-D printed parts are exposed to high-humidity environments or washed with water-based solutions. — Dymax, Torrington, Conn.