Sealing the Infrastructure That Powers the Energy Transition

Solar thermal, green hydrogen, and grid-scale storage demand sealing performance measured in decades.

Renewable energy infrastructure operates at the intersection of long service life requirements, aggressive process chemistries, and the economic reality that unplanned maintenance at scale is prohibitively expensive. Sealing is a small line item with outsized consequences — a failed seal in a utility-scale installation isn’t a parts problem, it’s an availability problem.
PRP supplies elastomeric seals across solar thermal, hydrogen production and distribution, electrolyzer systems, and grid-scale battery storage applications.

For solar thermal and concentrating solar power, EPDM and FKM compounds address the thermal cycling and heat transfer fluid compatibility demands of parabolic trough and power tower systems. In hydrogen applications — electrolyzers, fuel cell stacks, and high-pressure H₂ storage and dispensing — FFKM and PTFE-encapsulated seals deliver the chemical inertness and ultra-low permeation required for safe, efficient hydrogen containment. GLT-FKM is specified where low-temperature performance in outdoor hydrogen infrastructure is a design requirement.

For fuel cell and electrolyzer stack sealing — where particulate contamination in the hydrogen or membrane electrode assembly flow path directly affects stack efficiency and service life — PRP’s VeriClean Seals™ program provides documented surface cleanliness verification that protects stack performance from commissioning forward.

Grid-scale battery storage introduces its own chemistry demands; EPDM and FFKM compounds are qualified for electrolyte compatibility in lithium-ion and flow battery architectures.

Standards context:

ISO 22734 (electrolyzers0, IEC 62282 (fuel cells), SAE J2600 (hydrogen fueling), applicable pressure equipment directives.