| 1 MINUTE READ

All hail SMC

Sheet molding compound (SMC) is no stranger to the composites industry, but the last few years have seen a renaissance for this workhorse material as it is embraced anew.
#sheetmoldingcompound

Share

Facebook Share Icon LinkedIn Share Icon Twitter Share Icon Share by EMail icon Print Icon

A. Schulman Inc./Quantum Composites offers three grades of SMC:
Grade 8575, Grade 8585 and Grade 8595. Tensile modulus ranges from
33,090 MPa to 99,300 MPa.

Sheet molding compound (SMC) is no stranger to the composites industry, with a long and illustrious history in everything from cars and trucks to recreational vehicles and industrial structures. The last few years, however, have seen a renaissance for this workhorse material as it is embraced anew.

New high-strength SMCs with specific gravity (SG) hovering around 1.0 now have their sights set on aluminum in automotive body panels and other structures, and carbon fiber and epoxy are now also in the material mix from some suppliers. 

CW contributor Peggy Malnati walks you through the state of the SMC art with a two-part series that explores SMC’s capabilities and how the material is being used today:

  • SMC: Old dog, new tricks: Looks at the fibers, chemistries, fillers and resin matrices that define today’s SMCs, and what they can do.
  • SMC: Old dog, more tricks: Reviews the use of polyurethane in SMC, new work on sizing chemistry, loc-VOC resin formulations and low- or no-styrene options.

SMC has a long history of use in vehicles like this one.
The universe of applications is getting bigger.

Related Topics

RELATED CONTENT

  • A350 XWB update: Smart manufacturing

    Spirit AeroSystems actualizes Airbus’ intelligent design for the A350’s center fuselage and front wing spar in Kinston, N.C.

  • A hidden revolution: composite rebar gains strength

    Fiber-reinforced plastic (FRP) replacing coated steel in more reinforced-concrete applications.

  • The matrix

    The matrix binds the fiber reinforcement, gives the composite component its shape and determines its surface quality. A composite matrix may be a polymer, ceramic, metal or carbon. Here’s a guide to selection.