Curing Properties

Fast cure adhesives are a great way to reduce assembly costs, but engineers would be wise to question the need for speed when selecting adhesives. In this white paper, Master Bond provides an overview of the different types of fast cure adhesives, including one and two part epoxies, one and two part silicones, cyanoacrylates and UV curables. The strengths and weaknesses of each type of formulation are reviewed as well as factors to keep in mind when optimizing speed in the assembly process.

UV15RCL adhesive is a UV curable, optically clear compound that changes from red to clear once exposed to UV light. This distinctive feature gives users the confidence that penetration of UV light is taking place across the adhesive material, ensuring a thorough and effective curing process.*

Achieving good adhesion not only depends on selecting the right adhesive, but also on implementing the best surface preparation techniques. Regardless of the substrate, proper surface preparation always plays an essential role in achieving strong bonds. This white paper explores the various techniques including degreasing, abrasion, chemical treatments and physical methods.

LED curable adhesive systems offer safe and rapid cures upon exposure to an LED light source. Learn how to properly apply and cure an LED curable adhesive system using a portable LED light source in this demonstration video.

In this demonstration, Master Bond EP65HT-1 epoxy is used to show how a fast curing compound can set up quickly at room temperature. This two part system is commonly utilized for advanced engineering applications. It is a sure winner to speed up your assembly operations.

Master Bond EP51CC is a two component, fast setting epoxy with a color coding system where Part A is white and Part B is black. The two parts combine into a uniform gray color paste, which indicates proper mixing. This fast curing, non-drip compound is ideal for bonding and sealing applications with a forgiving mix ratio of one to one by weight or volume. This high performance epoxy has a rapid set up time, convenient handling, and good physical properties. It sets up very quickly at room temperature, with a working life of 3-5 minutes for a mixed 50 gram batch. The exact fixture time in an application context can vary from a few minutes to several hours, depending on multiple factors including, but not limited to the size of the components, the substrates being bonded, curing temperature and the amount of adhesive applied. An interesting feature of EP51CC is the role that the cure schedule plays in the bond strength. For example, it offers a lap shear strength of 700-800 psi when cured at room temperature for 24 hours, but when cured at room temperature for 8 hours followed by 3 hours at +250°F, its lap shear strength increases to 2,300-2,500 psi. It features high strength bonds to a variety of substrates including metals, composites, glass, ceramics, vulcanized rubbers, and many plastics with a tensile modulus of 100,000-150,000 psi at room temperature. EP51CC is electrically insulative with a volume resistivity o >1014ohm-cm and a dielectric strength of 450 volts/mil. Formulated for temperatures ranging from 4K to +250°F, this epoxy is also suitable for challenging cryogenic applications. EP51CC is available in ounce kits, half pint kits, pint kits, quart kits, gun applicators, and FlexiPaks® for ease of use.