Product News: Adhesives & Sealants

Reactive Hotmelt Adhesive is intended for headlamp bonding.

Press Release Summary:

Nov 09, 2012 - Exhibiting properties that minimize bond failure and promote durable assemblies, PURmelt® QR 4511™ comes in gray or black, with respective flash points of 329°F and less than 325°F, and can bond range of substrates to meet various automotive specifications. This 100% solids adhesive has density of 8.8 lb/gal, viscosity of 22,000 cps at 250°F, and shelf life of 6 months at 77°F. Bond strength provides optimal leak protection and promotes assembly process efficiency.

Henkel Corporation - Rocky Hill, CT

Original Press Release

Henkel Introduces PURmelt® QR 4511(TM) Headlamp Bonding Adhesive

Press release date: Oct 24, 2012

Reactive hotmelt adhesive for headlamp bonding features better performance than traditional sealants

MADISON HEIGHTS, Mich. -- Henkel introduces PURmelt(®) QR 4511(TM) reactive hotmelt adhesive for headlamp bonding applications. This unique adhesive can withstand and operate at higher exposure temperatures than traditional sealants and adhesives.  PURmelt(®) QR 4511(TM) minimizes bond failure and results in more durable assemblies.  The improved bond strength provides superior leak protection and improves assembly process efficiency.

PURmelt(®) QR 4511(TM) adhesive is available in gray or black color, and can bond a wide range of substrates, therefore meeting a variety of automotive specifications.

"Headlamps are exposed to harsh exterior environments, and their electronic and plastic components must withstand high operating temperatures with use," said Chuck Evans, senior vice president and general manager, NA Automotive, Henkel.  "In response, our technical team has developed PURmelt(® )QR 4511(TM) to provide superior bonding, sealing strength, and heat resistance for headlamps pre and post assembly."

For more information on PURmelt(®) QR 4511(TM) headlamp bonding adhesive, please call 866.332.7024 or visit

About Henkel

Henkel operates worldwide with leading brands and technologies in three business areas: Laundry Home Care, Cosmetics/Toiletries and Adhesive Technologies. Founded in 1876, Henkel holds globally leading market positions both in the consumer and industrial businesses with well-known brands such as Persil, Schwarzkopf and Loctite. Henkel employs about 47,000 people and reported sales of $21.7 billion and adjusted operating profit of $2.8 billion in fiscal 2011. Henkel's preferred shares are listed in the German stock index DAX.

CONTACT: Henkel Corporation,, Matina Kakar,, +1-248.217-4940