SH Strength

[Power Wash Plus]

I have finally found a place to buy SH in bulk. They claim that the % strength ranges from upper teens to lower twenties.  Is this possible, if so what would the mix ratio be? Thanks in advance for any help. 

[woody70]

Most places should give you a chemical composition test sheet.  It's possible to get that high if its just been freshly made at the chemical plant.  Keep in mind it quickly diminishes from those numbers to the lower teens or upper single digits depending on heat, light and other factors.  For instance, lets say you get lucky and get some 20%.  A few days later it will be about 15%, a few days later 11-12%.  It kinda levels off after that and can take several weeks to months to drop into the single digits.  Old school method, is to put some between your thumb and index finger and rub.  If it warms up, it's still fresh enough to use.

[Apple Roof Cleaning (813) 655-8777]

I have finally found a place to buy SH in bulk. They claim that the % strength ranges from upper teens to lower twenties.  Is this possible, if so what would the mix ratio be? Thanks in advance for any help. 

Most places should give you a chemical composition test sheet.  It's possible to get that high if its just been freshly made at the chemical plant.  Keep in mind it quickly diminishes from those numbers to the lower teens or upper single digits depending on heat, light and other factors.  For instance, lets say you get lucky and get some 20%.  A few days later it will be about 15%, a few days later 11-12%.  It kinda levels off after that and can take several weeks to months to drop into the single digits.  Old school method, is to put some between your thumb and index finger and rub.  If it warms up, it's still fresh enough to use.

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