Cool Gel Heat Protection Gel – 1 Pint Aerosol
The aerosol gel you spray around a braze joint to keep heat away from delicate parts.
AirGreen codeAG-CH-002
514 316-2973 · sales@airgreen.ca
Quick facts
Cool Gel is a heat protection gel in a 1 pint aerosol. You spray it on the part to protect before lighting the torch: it forms a barrier that helps keep brazing heat away from valves, sensors and delicate surfaces near the joint.
Brazing a refrigerant line without damaging the rest
On a heat pump, the joints to be brazed are often a few inches from a service valve, an expansion valve, a sensor or an O-ring. Too much heat can damage a valve seat or an electronic component. The gel goes where a wet rag does not hold well, such as behind a valve or against a housing.
Parts to protect
- Service valves and shutoff valves
- Expansion valves, sensors and electronic parts
- O-rings, plastics and painted surfaces
- Walls, insulation and housings near the flame
Best practices
Read the directions and warnings printed on the container. Spray the part to be protected, never the joint itself, then braze under a light flow of dry nitrogen to keep the inside of the tube clean. The gel does not replace the unit manufacturer’s instructions: if the manual calls for removing a valve before brazing, follow it. Work on a refrigerant circuit is reserved for a qualified refrigeration technician.
Available from AirGreen across Greater Montréal
Our refrigeration technicians braze the refrigerant lines of every heat pump they install in Montréal, Laval, Longueuil, on the South Shore and on the North Shore. RBQ licence 5645-9605-01. For availability or a quote, call us at 514 316-2973 or email sales@airgreen.ca with the quantity you need.
Braze without damaging what is next to the joint
The gel forms a barrier on the part to protect while the torch heats the joint next to it.
- Service valves and shut-off valves near a braze joint
- Expansion valves, sensors and electronics close to the flame
- O-rings, plastics and painted surfaces
- Brazing near a wall, insulation or a cabinet
Specifications
From the manufacturer’s documentation. A value the manufacturer does not publish is not listed.
What to know before installing
- Read the directions and warnings on the can before use.
- Spray the part to protect, not the joint to braze.
- The gel does not override the equipment maker’s instructions: some valves must be removed or cooled another way.
- Keep brazing with a light flow of dry nitrogen.
You may also need
Silver Brazing Rods
Brazing Flux – 7 oz
Dry Nitrogen – Cylinder
Abrasive Cloth for Copper (Plumber’s Sand Cloth)
Leak Lock Thread Sealant – Blue and GoldChemicalsSee all
Frequently asked questions
Which parts should I protect?
Anything that must not heat up during brazing: service valves, expansion valves, sensors, O-rings, plastics and finished surfaces near the joint.
Does it replace a wet rag?
It does the same job better in tight spots: sprayed on, it covers corners where a rag will not stay.
Do I still follow the equipment manual?
Yes. If the manufacturer says to remove a valve or cool it another way, that instruction comes first.
Do your technicians use it?
Yes. Our technicians protect valves and sensitive parts when brazing refrigerant lines, everywhere in Greater Montréal.
Protect nearby parts while brazing
Tell us the size and the quantity: we confirm availability and send you a quote. Or let our technicians install it for you.
Specifications from the manufacturer’s documentation, checked on October 7, 2026.