Hot Melt System suits case and carton sealing applications.

Press Release Summary:

Designed for reliability and flexibility, InvisiPac™ Tank-Free™ Hot Melt Delivery System includes vacuum feed system, in-line melt chamber, heated hose, and applicator. Tank-free design minimizes time adhesives spend at high temperatures, reducing char and nozzle plugging, eliminating need for scraping, and lowering maintenance requirements. Start-up times are ~10 min or less, and areas of use extend to various other hot-melt sealing applications.

Original Press Release:

Graco Launches InvisiPac - a Revolutionary Hot Melt System for Case and Carton Sealing Applications

InvisiPac Designed to Improve Uptime and Deliver Cost Savings

Tank-free design significantly reduces char, nozzle plugging and maintenance

MINNEAPOLIS--Graco Inc. (NYSE:GGG) is introducing its new InvisiPac™ Tank-Free™ Hot Melt Delivery System for case and carton sealing applications. The InvisiPac System was previewed at Pack Expo 2012 in Chicago, and is now available for immediate sale through Graco’s channel of authorized distributors.

InvisiPac’s innovative tank-free design significantly reduces the char created by traditional hot-melt systems because the adhesives spend less time at high temperatures. In addition, start-up times on an InvisiPac production line will be approximately 10 minutes or less, compared to 35 minute start-ups for traditional hot-melt systems that use a tank to heat the adhesives.

“InvisiPac was engineered to solve the complex and costly problems associated with traditional hot-melt systems that rely on a tank to bring adhesives up to a temperature of 350° F or more,” said Nick Long, Product Marketing Manager at Graco. “Without a tank attached to the system, InvisiPac reduces char and nozzle plugging, eliminates the need for constant tank scraping, and ultimately lowers the end user’s maintenance requirements.”

The InvisiPac System was designed for reliability and flexibility. While it is ideal for case and carton sealing operations, InvisiPac offers a game-changer for numerous other hot-melt sealing applications.

The complete InvisiPac System includes a vacuum feed system, in-line melt chamber, heated hose and Graco-designed applicator. Its integrated vacuum system feeds adhesive pellets to the in-line melt chamber. A sensor monitors adhesive in the chamber, and additional pellets are automatically added as needed, based on the demand of the application. With its efficient heat transfer design, the InvisiPac System has adhesive throughput capability equivalent to many hot melt tank systems. The result is a continuous flow of adhesive during production that significantly reduces the time adhesive sits at high temperature. Less time at high temperature means less char, less maintenance and more uptime.

For more information on the Graco InvisiPac System, visit, email or call 1-800-458-2133.

About Graco

Graco Inc. supplies technology and expertise for the management of fluids in both industrial and commercial applications. It designs, manufactures and markets systems and equipment to move, measure, control, dispense and spray fluid materials. A recognized leader in its specialties, Minneapolis-based Graco serves customers around the world in the manufacturing, processing, construction and maintenance industries. For additional information about Graco Inc., please visit us at


Graco Inc.

Beth Torgerson, 612-623-6290

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