Applications
Safe-HCL is a modified acid made to replace muriatic (hydrochloric) acid. It is non-corrosive to skin, unlike muriatic acid, but it is still an acid: always wear gloves and eye protection, and work outdoors or in a well-ventilated area.
Before you start: always add acid to water, never water to acid. Mix in glass or HDPE plastic. Spot-test first and do not leave parts unattended.
Seashells (calcium crust)
- Full strength for a quick 3-5 second dip, or 1 part Safe-HCL to 1-2 parts water for a longer soak.
- Check often and re-dip as needed, then neutralize and rinse.

Rust on steel tools and parts
- Full strength or 1 part Safe-HCL to 1-2 parts water.
- Brush on or soak, check often, then neutralize and rinse.

Motorcycle and car exhaust headers (steel)
- Full strength or 1 part Safe-HCL to 1-2 parts water.
- Remove or mask rubber, seals and painted parts first.

Concrete and masonry haze
- 3-6 oz of Safe-HCL per gallon of water.
- Test a small area first, then rinse well.
When you are done: neutralize with water and baking soda, then rinse. Store used solution in a labeled HDPE container, separate from fresh product. Keep out of reach of children.
Metals caution: Safe-HCL may be corrosive to metals. Do not use on aluminum, zinc, galvanized or magnesium parts: they react and give off flammable hydrogen gas.
WARNING (SDS): May be corrosive to metals. Harmful if inhaled. Causes serious eye irritation. Wear eye protection and chemical-resistant gloves; use outdoors or in a well-ventilated area. Avoid breathing mist, vapours, or spray. Keep only in original / HDPE packaging. See Safety Data Sheet before use. Always add acid to water. Neutralize spent solution per SDS / local rules.