Uploaded August 2025 | Updated September 2026, 2 weeks ago
Join Ty and Ash as they demonstrate the proper use of WETRAG HEATSHIELD and WETRAG Heat-Blocking Putty from Refrigeration Technologies when brazing near sensitive components like evaporator coils, aluminum parts, and electrical connections. In this hands-on tutorial, they show how to protect delicate HVAC components using WETRAG heat blocking putty and HEATSHIELD during torch work.
What You'll Learn:
How to properly apply wet rag heat blocking putty around sensitive components
Correct placement and use of heat shields during brazing operations
Why aluminum components need extra protection compared to copper
Safe torch techniques and flame positioning for effective brazing
How these products protect against accidental damage from torch flames
Easy cleanup methods and product reusability
Products Demonstrated:
WETRAG Heat Blocking Putty (reusable)
Viper HEATSHIELDS (flexible, long-lasting protection)
Proper torch safety equipment and techniques
This video is perfect for HVAC technicians, apprentices, and anyone working with torches around sensitive equipment. See firsthand how these protection methods can save you from costly mistakes and keep your work area safe.
Read all the tech tips, take the quizzes, and find our handy calculators at hvacrschool.com or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).
Join Ty and Ash as they demonstrate the proper use of WETRAG HEATSHIELD and WETRAG Heat-Blocking Putty from Refrigeration Technologies when brazing near sensitive components like evaporator coils, aluminum parts, and electrical connections. In this hands-on tutorial, they show how to protect delicate HVAC components using WETRAG heat blocking putty and HEATSHIELD during torch work.
What You'll Learn:
How to properly apply wet rag heat blocking putty around sensitive components
Correct placement and use of heat shields during brazing operations
Why aluminum components need extra protection compared to copper
Safe torch techniques and flame positioning for effective brazing
How these products protect against accidental damage from torch flames
Easy cleanup methods and product reusability
Products Demonstrated:
WETRAG Heat Blocking Putty (reusable)
Viper HEATSHIELDS (flexible, long-lasting protection)
Proper torch safety equipment and techniques
This video is perfect for HVAC technicians, apprentices, and anyone working with torches around sensitive equipment. See firsthand how these protection methods can save you from costly mistakes and keep your work area safe.
Read all the tech tips, take the quizzes, and find our handy calculators at hvacrschool.com or the HVAC School Mobile App on the Google Play Store (hvacrschool.com/play-store) or App Store (hvacrschool.com/app-store).










