PRODUCT DESCRIPTION

　　LOCTITE® Product 12498 High Performance UV Curable

　　Speedbonder is a rapid curing adhesive which develops strong

　　bonds through gaps up to 0.020” when cured with Locquic

　　Primer N. Product 12498 will also cure rapidly when exposed to

　　high intensity UV light in the range of 365 nanometers. It is

　　suitable for bonding or coating a wide range of materials. This

　　products temperatures ranging from -65ºF to 225ºF.

　　Use areas include glass bonding, metal joining where a cured

　　fillet is required, electrical component potting and wire tacking.

　　PROPERTIES OF UNCURED MATERIAL

　　Typical Value

　　Chemical Type Modified Acrylic Ester

　　Appearance Blue

　　Odor Mild

　　Specific Gravity 1.1

　　Viscosity, @ 25ºC, cP

　　Brookfield RVT

　　Spindle #6 @ 20 RPM 8,000 - 20,000

　　Flash Point, ºF >200

　　PROPERTIES OF CURED MATERIAL

　　Physical Properties

　　Hardness (Barcol) ASTM D 2240 >60

　　Thermal Expansion, ASTM D 696 10-4 in/in/ºF

　　Bondline Gap

　　2 mil 10 mil

　　Shear Strength, Sandblasted Steel,

　　ASTM D 1002, psi 3,000 2,000

　　Impact Strength, ASTM D 950, ft-lbs. 14 13

　　Tensile Strength, ASTM D 882 5,000 -

　　TYPICAL ENVIRONMENTAL RESISTANCE

　　Hot Strength (ASTM D 1002)

　　Sandblasted steel specimens cured at 72 hours at RT.

　　Specimens aged one hour at temperature before testing.

　　Test Temperature Strength, psi

　　72ºF 3000

　　120ºF 2200

　　200ºF 1300

　　250ºF 650

　　Chemical / Solvent Resistance (ASTM D 1002)

　　Steel specimens cured 72 hours at RT.

　　Immersed in solvent 2 weeks at 188ºF before testing .

　　Air Reference, psi 2,300

　　Motor Oil, psi 3,000

　　Transmission Fluid, psi 3,500

　　Gasoline, psi 1,300

　　Water, psi 500

　　CURE CHARACTERISTICS

　　Adhesive 12498 is an ultraviolet curable anaerobic adhesive

　　and thus can be cured with Locquic Primer N, ultraviolet light

　　and combinations. The adhesive gives good bonds to thermoset

　　plastics.

　　Approximate Fixture Times with Primer N:

　　Bondline Gap Fixture Time

　　2 mil 10 sec.

　　5 mil 2 min.

　　Since most assemblies have several points of close contact,

　　practical experience indicates fixture times are generally 15

　　seconds to 2 minutes, regardless of gap.

　　Factors Affecting UV Cure Rate and Strength:

　　1. Cure lamp intensity and wavelength

　　2. Distance from light source

　　3. Temperature

　　4. Light transmittance of parts being bonded

　　Higher intensity light will develop faster cures. Factors reducing

　　intensity will promote slower fixtures and cure times. High

　　intensity light is necessary for curing adhesive 12498 to a dry

　　surface