The history of RESITRIX® Waterproofing Membranes
As long ago as 1856, PHOENIX AG – a former giant in the field of high quality technical elastomeric products – began the manufacture of technical rubber products in Hamburg and, throughout its 150-year company history since, has innovated and pioneered like no other manufacturer in the development of this industry.
Waterproofing membranes represented a core activity of the company and in the 1970s it launched, amongst others, the product "Flamtrix” – an EPDM membrane with a PE-Fleece which, at that time, was installed and sealed using naked flames.
This was continuously researched, developed and improved, always with the goal in mind of producing the perfect waterproofing membrane with almost unlimited application methods to suit every type of flat roof construction. Via an EPDM membrane with a glass fleece, the pioneers of the Research & Development department finally succeeded in setting up new benchmarks and established impressive new technical standards. They created a totally new material composition with an integrated glassfibre reinforcement.
Highly flexible single-ply membranes combining in one-layer all the advantages in terms of quick and easy installation of polymer modified bitumen with the excellent properties of EPDM whilst allowing very fast, simple and secure installation and detailing with hot-air welding: RESITRIX® was born!
In 2004, the takeover of PHOENIX AG by Continental AG took place, followed by a subsequent merger with ContiTech AG in 2007.
In 2008, the PHOENIX Dichtungstechnik (the PDT waterproofing division) demerged from the Continental Group through a management- buy-out, to further continue the rich history of manufacturing high-quality technical elastomer products at the locations in Hamburg and Waltershausen in Germany. The Managing Directors Jürgen Werner and Gregor Ellegast have been involved with the company for many years, and committed themselves to ensuring the on-going development of the PDT Group, in their new independent role. They developed and implemented a promising, forward-looking strategy which further established PDT as a leading manufacturer of unique premium products – especially RESITRIX® – on the international stage.
In Summer 2011, another new exciting era in the history of PDT began when an agreement was reached with CARLISLE® Companies Inc., for the two companies to work as one to further develop the already rapidly growing PDT brands, as part of the Construction Materials division (CM).
Hence, thanks to the additional resources and support of the CARLISLE® Group, the already highly successful RESITRIX® brand rose to the position of the fastest-growing brand in the waterproofing sector in 2011.
The year 2012 proved to be no less eventful, and the next step to further develop the European business of the CARLISLE® Group followed in Spring, with the acquisition of the company hertalan Rubber Products B.V., a producer of membrane roof sheets, and associated EPDM products for waterproofing roofs and facades.
To confirm the membership of the multinational CARLISLE® Group, the company name PHOENIX Dichtungstechnik, changed with effect from September 2012 and now operates under the new company name of CARLISLE® Construction Materials GmbH.
In addition, in September 2012, a new European EPDM specialists group was formed following the acquisition of Hertalan. Under the auspices of the CARLISLE® CM Europe Group, the operational activities of the following companies are grouped together:
CARLISLE® Construction Materials GmbH (previously PHOENIX Dichtungstechnik GmbH)
CARLISLE® Construction Materials B.V. (previously Hertalan Rubber Products B.V.)
Carlisle® Hardcast B.V.
With a very rich tradition and an eventful history behind us, we look forward to the future and to the many exciting projects that we encounter every day with enthusiasm, guided by the belief that we can make the difference. Our business philosophy is reflected in our long-term and forward-thinking approach to the way we think and act, while at the same time constantly striving with our business acumen and motivation for ever better solutions. We see challenges as opportunities to improve, and changing requirements and circumstances as a constant stimulus to further enhance proven solutions. We also seek to continually develop our services and products in order to create added value for our clients by providing optimal support on their individual projects: Every day and with RESITRIX®, for more than 35 years already. That is our strength.