Surface Preparation & Treatment Comparison

Gelled Acid	Liquid Acid	Abrasive Blasting
Environmentally and end user safer Complete control	Dangerous for environment & end user No control	Blasts pollutants into the atmosphere No control
Extremely easy to use	Difficult to acquire consistency	Difficult to acquire consistency
Ready to use - Do not dilute	Must be diluted and ratio varies	Requires extensive training
No special equipment		Expensive equipment
No noise or other pollution	Environmentally dangerous	Very loud & messy Environmental issues
Can be used indoors & outdoors, large/small jobs, new/old concrete	Requires extra care for indoor use	Difficult to use on smaller & indoor jobs
Can be used on horizontal and vertical surfaces	Cannot be used on vertical surfaces	Cannot be used on vertical surfaces
No substrate damage	Causes substrate damage

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