EnvTech’s proprietary “Clean & Gas-Free” process utilizes a strong 8.8-pH buffer with appropriate chelants, eliminating even more of the disadvantages of the acid cleaning, and avoiding the use of ammonia in the cleaning solution. Because of the strong buffer, everything that comes into contact with the cleaning solution is neutralized immediately, avoiding potential high corrosion rates while pH is being adjusted and eliminating the chance of leaving any area at an acid pH. This mixture has proven excellent for polymer removal and can be heated too much as 2250F without adverse effects. In most locations, the cleaning solution can be drained directly to the plant sewer when the cleaning has been completed.