All Foils is a leader in converting and coating thin-gauge aluminum for heating, ventilation and air conditioning applications. Our proprietary HVAC coatings are engineered to protect aluminum fin stock and other HVAC components from moisture, humidity and the harsh conditions they face in the field. Coated fin stock helps HVAC equipment hold up in environments where uncoated aluminum is vulnerable to corrosion, supporting longer service life and consistent performance.
HVAC Films & Lacquers

Corrosion-Resistant HVAC Coatings for Aluminum
Three exclusive coatings, HydroBLUE, HygroWHITE and UltraGOLD, cover the most common HVAC challenges, from heat exchangers to energy recovery rotors. Each one addresses a different need, whether that’s shedding condensation, controlling vapor or standing up to extreme humidity. All three are applied in-house to thin-gauge aluminum, so coated material arrives ready for fabrication.
Choose a pre-engineered coating that fits your application, or work with our engineers to develop a custom coating built around your equipment, environment and performance requirements. Explore our full range of foil coating services.

HVAC Coatings at a Glance
Three
PROPRIETARY HVAC COATINGS
Fin Stock
THIN-GAUGE ALUMINUM EXPERTS
Lab Tested
CONSISTENT COATING QUALITY
One Source
COATING THROUGH CONVERTING
Coating types: hydrophilic lacquer, desiccant lacquer and hydrophilic polyester film
Uses: heat exchangers, energy recovery rotors and HVAC fin stock

Built for Harsh HVAC Environments
HVAC equipment runs in some of the toughest conditions aluminum faces: constant condensation, high humidity, temperature swings and corrosive outdoor air. Without protection, fin stock can corrode, lose efficiency and shorten the life of the unit. Our films and lacquers are formulated specifically for these environments, helping fin stock shed moisture, resist corrosion and keep performing over time.
Every coating is applied and tested in-house, and our engineers can adjust a coating or develop a new one when your application calls for it. Every order is backed by our ISO 9001:2015 certified quality management system for consistent, repeatable results from one run to the next.
Choosing the Right HVAC Coating
Each exclusive coating is designed for a specific HVAC challenge. Our team will help you match the right coating to your equipment and operating environment.

HydroBLUE
HYDROPHILIC LACQUER
An exclusive hydrophilic lacquer that protects aluminum fin stock from moisture, helping water sheet off fin surfaces instead of beading and bridging between fins.
Best suited for: heat exchangers and HVAC processing environments

HygroWHITE
DESICCANT LACQUER
An exclusive desiccant lacquer with a molecular sieve and silica gel effect that improves selective vapor absorption and desorption, helping energy recovery rotors transfer moisture between airstreams more effectively.
Best suited for: energy recovery rotor

UltraGOLD
HYDROPHILIC POLYESTER FILM
An exclusive polyester coating that gives aluminum fin stock self-healing protection against harsh climates and high humidity.
Best suited for: HVAC equipment in extreme environments
HVAC Coating FAQs
What are HVAC films and lacquers?
HVAC films and lacquers are protective coatings applied to thin-gauge aluminum, such as fin stock, to protect it from moisture, humidity and corrosion in heating, ventilation and air conditioning equipment.
What is HydroBLUE?
HydroBLUE is an exclusive hydrophilic lacquer from All Foils that protects aluminum fin stock from moisture. It is used in heat exchangers and other HVAC processing environments.
What is HygroWHITE?
HygroWHITE is an exclusive desiccant lacquer with a molecular sieve and silica gel effect that improves selective vapor absorption and desorption. It is used in energy recovery rotors.
What is UltraGOLD?
UltraGOLD is an exclusive hydrophilic polyester film that gives aluminum fin stock self-healing protection against harsh climates and high humidity.
What is a hydrophilic coating on fin stock?
A hydrophilic coating attracts water so condensation spreads into a thin film and drains off the fins instead of forming droplets. This helps maintain airflow and protects the aluminum from moisture-related corrosion.
Can you develop a custom HVAC coating?
Yes. Choose one of our pre-engineered coatings or work with our engineers to develop a custom coating for your equipment, environment and performance requirements.