Cool Air 210 Smart Seal External A/C Leak Stop Putty - Seals Leaks Up to 5mm - Suitable for Any Material - Inert to All Types of Lubricants and Refrigerant Gases

The best external leak fix on the market. Trusted by thousands of top professionals, CoolAir SmartSeal External is a leak stop suitable for any material! It effectively seals all types of leaks up 5mm, and is specifically designed to be inert to all kinds of lubricants and refrigerant gases. Simply cut a piece off, mix the two components until the product is uniform and warm to the touch, and apply the mixture directly to the leak area. This sealing compound cures completely in 4-5 hours, or curing can be accelerated with the use of a heat gun. Works with everything. Fully compatible with POE, PAG, PAO, mineral lubricants and alkylbenzene, CFC, HFC, HCFC, CO, and even new generation gases like R1234yf and R1234ze. In addition, SmartSeal External is resistant to all normal flushing liquids and temperatures from -100c to +270c. It can efficiently and effectively seal leaks of up to 5mm in diameter and can resist pressures of up to 580-825 psi depending on the size of the leak. Go with the product the pros trust – add CoolAir SmartSeal External to your cart today.

• WORKS WITH EVERYTHING – CoolAir SmartSeal External is an external leak stop suitable for any material, and is highly effective for sealing leaks of up to 5mm in diameter on any air conditioning or refrigeration system. SmartSeal External is inert to all types of lubricants and refrigeration gases, and does not react to temperature changes.
• PROVEN EFFECTIVE - Developed and tested with POE, PAG, PAO, mineral lubricants and alkylbenzene, CFC, HFC, HCFC, CO, and even new generation gases such as R1234yz and R1234ze.
• EASY TO USE – Quickly and easily mixed with two fingers, closes leaks immediately, and cures completely within 4-5 hours. Ideal for emergency sealing, SmartSeal External does not disperse any residue into the system, can be sanded and refinished, and if necessary can be easily removed once dried.
• COMPATIBLE WITH OTHER SMARTSEAL PRODUCTS – SmartSteal External can be combined with other injectable SmartSeal internal leak stop products! First seal the larger leak from the outside using SmartSeal External, then complete the sealing process from the inside with SmartSeal SmartShot! The two products are not only compatible, but also synergic.
• GOOD UNDER PRESSURE – Capable of resisting extreme pressures of as much as 825psi depending on the diameter of the leak. It is also resistant to all normal flushing liquids and temperatures from -100c to +270c.