- Formula is ideal for potting and bonding electronic and electrical components.
- Non exothermic reaction safeguards heat-sensitive components.
- Extended work time allows for positioning and adjustment to fit prior to setting.
- Non corrosiveness to copper preserves conductivity and retention of insulation properties.
- Effective adhesive system for potting, bonding, joining, gluing, attaching, assembling, encapsulating, and sealing applications.
From the Manufacturer
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3M™ Scotch-Weld™ Epoxy Potting Compound DP270 Clear is a
two-part, low viscosity, self leveling epoxy resin system
designed primarily for potting, sealing, and encapsulation of
many electronic components. It is non-corrosive to copper,
non-exothermic and its low viscosity provides high flow rate,
ideal for precise control when dispensing small as. It dries
to a clear, amber color with very little shrinkage and its
clarity allows visibility of the component. DP270 also protects
the component from moisture and contaminants and is suitable for
outdoor use. This adhesive provides structural strength and also
bonds a wide variety of substrates including metals, ceramics,
wood, and many plastics. This clear drying adhesive and potting
compound begins with low viscosity for easy, controlled
dispensing. The mix ratio is 1:1 and provides a 60 minute work
life, which allows plenty of time to position and to adjust fit
prior to setting. The adhesive reaches handling strength in
approximately 3 hours and is fully cured in 48 hours (at
720F/220C). DP270 meets the requirements of UL 94 HB (Horizontal
Burn). Both mixing nozzle and applicator are required for
dispensing from the Duo-Pak cartridge and are sold separately.
For best results, always use 3M™ Scotch-Weld™ EPX™ Plus II
Applicator and Mixing Nozzles.
Product Information Key FeaturesMix Ratio (Volume) B:AApproximate
Viscosity 75°F/24°C (cps)Approximate Mixed Worklife at
75°F/24°CApproximate Time to Handling Strength at
75°F/24°CAverage T-Peel at 75°F/24°C (piw)Overlap Shear (psi)
Rigid potting compound Non-corrosive 1:112,00060 Minutes3
Hours21,2002,500300
What Are Epoxy Adhesives?
Epoxies are polymeric materials that start out as liquids and
undergo a reaction to form a solid. These compounds are
a major part of the class of adhesives called "structural
adhesives," which includes polyurethane, acrylic, cyanoacrylate,
and others. Epoxies include two compounds: resins and hardeners.
When the two are mixed in their specified ratio they react
ly; and once the reaction has finished, they form a
strong and rigid plastic material. Once the two parts are mixed,
there is a limited working time in which the epoxy can be
applied, ranging from a few minutes to an hour or longer. These
adhesives provide better heat and resistance than other
common adhesives and those that require heat to cure will be more
heat and resistant than those that cure at room
temperature. An epoxy based polymer is mechanically strong,
ly resistant to degradation, and very tacky during its
working time. Epoxy adhesives are used in the manufacture of
buildings, homes, aircraft, automobiles, bicycles, boats, golf
clubs, skis, and snowboards, as well as many other applications
where high-strength bonds are needed along with resistance to
environmental conditions. Epoxy adhesives can be formulated to
meet almost any requirement for bonding wood, metal, glass,
stone, and various plastics. Using different formulations,
epoxies can be made flexible or rigid, transparent or opaque,
quick setting or slow setting.
Industrial uses for epoxies range widely and include coatings,
adhesives, and composite materials like carbon fiber and
glass-reinforced plastic. They are the preferred choice for their
ability to flow and conform to the work area, strong adhesion,
and heat resistance, and exceptional mechanical and
electrical insulating properties.
About 3M Industrial Adhesives and Tapes
For more than a century, 3M has applied innovation and
technology to improving our customers’ lives and supporting their
business goals. Today the company, from its headquarters in St.
Paul, Minnesota, serves industrial and commercial customers and
consumers in nearly 200 countries. 3M Industrial Adhesives and
Tapes include application-specific products that provide
durability, strength, and special characteristics such as
temperature resistance and short- and long-term protection. The
3M brand, across thousands of products, represents consistency,
superior quality, and value.