Mixing SH and Degreaser


#1

Before I ask I will like to say that I did use the search function and I did try and find the answer.
I’ll be washing a house tomorrow that was near a fire (the owners are worried about possible soot even though there’s none visible). So I was thinking regular SH mix (I just DS straight 10% and elemonator, usually hiting the wall from .8-1%) and adding a small amount (12oz per 5 gallons of mix - I’m planning on making seperate mix in a 5 gallon bucket since I’m only going to use it on this one house) of degreaser (I’m out of EBC so I was just going to use ZEP degreaser).

After reading a bit it seems like it is perfectly safe to mix the degreaser with SH and DS, but I just wanted to double check everything. Siding is painted hardie plank.


#2

Wash it with SH and see how it turns out,

Anything visible then go back and DS ebc

But yes you can mix them


#3

OO Hardi plank… I take back what I said…

Run!!! Jk. Well I do but there are some people here that do them


#4

haha thanks! unfortunately lots of houses in my area use hardie. Fortunately i’ve washed a fair share with regular mix and no issues those far. But ok, yeah I’ll just wash with regular mix first. Thanks again


#5

Alkaline (high pH stuff like caustic soda, potassium hydroxide, sodium metasilicate) can be mixed with SH without a problem.

Do not mix ACID and SH.


#6

My house wash batch contains about a half gallon of degreaser in a 35 gallon batch. Never had any issues and really helps on the rear of homes around bbq pits.


#7

Just make sure you don’t wash homes that have painted siding or vinyl. Degreaser will take the shine/wax/luster whatever you want to call it, from those surfaces. Old schoolers used to use TSP or degreaser in their mix if it was for a pre paint so it would de gloss the paint.


#8

Very good to know I’m assuming this occurs due to no clear\protective coat to protect the painted surface?