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LORD® 7555 adhesive/sealant is an equal-mix, two component bright white urethane adhesive/sealant system used to bond and seal a variety of plastics and prepared metals.
Unit of Measure

Typical Properties

Appearance

 N/A White Paste

Viscosity at 77 Degree Fahrenheit (ºF) (25 Degree Celsius (ºC)) Temperature

 N/A 130,000 to 230,000 cP

Density

 N/A 9.95 to 10.25 lb/gal1192 to 1228 kg/m³

Flash Point (Closed Cup) Temperature

 N/A >200 ºF>93 ºC

Note for Typical Properties

 N/A Data is typical and not to be used for specification purposes.

Elongation

 N/A 166 %

Note for Typical Cured Properties

 N/A Data is typical and not to be used for specification purposes.

Typical Properties of Resin Mixed with Curative

Mix Ratio by Volume, Adhesive to Accelerator

 N/A 10:1

Solids Content

 N/A 100 %

Working Time at 77 Degree Fahrenheit (ºF) (25 Degree Celsius (ºC)) Temperature

 N/A 45 minutes

Purge Time at 77 Degree Fahrenheit (ºF) (25 Degree Celsius (ºC)) Temperature

 N/A 10 to 15 minutes

Time to Handling Strength at 77 Fahrenheit (ºF) (25 Degree Celsius (ºC)) Temperature

 N/A 5 to 6 hour

Note for Typical Properties of Resin Mixed with Curative

 N/A Data is typical and not to be used for specification purposes. Given a 1/2" (12.5 mm) diameter bead.

Shelf Life/Storage

Shelf Life/Storage

 N/A Shelf life of each component is six months when stored in a clean, dry environment at 50-80 ºF (10-27 ºC) in original, unopened container.

After opening, protect adhesive/sealant from excessive exposure to moisture by replacing protective cap on th

Features

Non-Sag

 N/A Full-bodied urethane formula holds bead pattern on horizontal surfaces, allowing for greater processing flexibility, non-slumping.

Fast Cure

 N/A LORD® 7555-A/7555-C adhesive/sealant develops handling strength within 60 minutes, ideal for smaller bonding and sealing applications.

Immediate Paintability

 N/A Offers immediate paint time, improving throughput.

Extended Work Time

 N/A LORD® 7555-A/7555-E adhesive/sealant offers longer working time, allowing for use on larger projects where more time is required.

Non-Flammable

 N/A Does not require explosion-proof equipment.

Environmentally Recommended

 N/A No Volatile organic compound (VOC) Content, does not contain ozone depleting chemicals.

Environmentally/Ultraviolet (UV) Resistant

 N/A Resists sunlight, weathering, humidity and salt spray, bright white color will not yellow.

Chemically Resistant

 N/A Solvent resistant when cured. Painting and most cleaning processes do not affect bond strength.

Applications

Surface Preparation

 N/A Surfaces should be free of grease, dirt and other contaminants. For plastics, clean the surface with a dry rag wipe or a rag dampened with solvent. For metals, grit blast and solvent wash the surface, then prime for optimum bond performance.

Mixing

 N/A Mix LORD® 7555-A resin with the appropriate curative at a 1:1 ratio, by volume. Handheld cartridges will automatically dispense the correct volumetric ratio of each component.

Applying

 N/A Apply adhesive/sealant using handheld cartridges. Assemble parts within working time of the adhesive/sealant.

Curing

 N/A LORD® 7555-A/C adhesive/sealant will cure to full strength in 24 hours at room temperature, 77 ºF (25 ºC), or in 45 minutes at 140 ºF (60 ºC).

LORD 7555-A/E adhesive/sealant will cure to full strength in 48 hours at room temperature, 77 ºF (25 ºC), or in 45 minutes at 140 ºF (60 ºC).

Cleanup

 N/A Clean equipment and tools prior to the adhesive cure with solvents such as isopropyl alcohol, acetone or methyl ethyl ketone (MEK).

Additional Information

Additional Information

 N/A Values stated in this technical data sheet represent typical values as not all tests are run on each lot of material produced.

Information provided herein is based upon tests believed to be reliable. In as much as LORD® Corporation has no control over the manner in which others may use this information, it does not guarantee the results to be obtained. In addition, LORD® Corporation does not guarantee the performance of the product or the results obtained from the use of the product or this information where the product has been repackaged by any third party, including but not limited to any product end-user. Nor does the company make any express or implied warranty of merchantability or fitness for a particular purpose concerning the effects or results of such use.

LORD® and "Ask Us How™" are trademarks of LORD® Corporation or one of its subsidiaries.

LORD® provides valuable expertise in adhesives and coatings, vibration and motion control, and magnetically responsive technologies. Our people work in collaboration with our customers to help them increase the value of their products. Innovative and responsive in an ever-changing marketplace, we are focused on providing solutions for our customers worldwide. Ask Us How™.