ACR Concrete & Masonry Etch
ACR® Concrete & Masonry Etch is environmentally safe substitute for more dangerous acid etching products. ACR Concrete Etch provides a way to etch and open the surface of concrete, brick, block or stone materials. ACR Concrete & Masonry Etch is an organic acid based concrete cleaning and etching product that is 100% synthetic, environmentally safe and biodegradable. ACR Concrete & Masonry Etch is stronger and attacks hardened concrete more aggressively than traditional acids, including Hydrochloric (muriatic) and other dangerous acid blends. ACR Concrete & Masonry Etch is specifically designed to prepare the surface of the concrete to accept and allow greater penetration of the TechCrete Waterproofing Agent, but can be used in many other applications. To determine if etching is required, place a drop of water on the concrete surface, if the water does not soak into the surface quickly, then etching may be required. ACR Concrete & Masonry Etch is part of our environmentally safe system of cleaning products. ACR Concrete & Masonry Etch is non-regulated for transportation/handling, is non-toxic, non-fuming, and will not corrode or rust metals.
ACR Concrete & Masonry Etch
Patios • Car-parks • Walls • Wharf Decks • Trucks • Marine Structures • Vehicles • Specialty Applications • Precast Panels • Tiled Shower Recesses • Tiled Areas (no terra-cotta or glass-glazed).
ACR® Concrete & Masonry Etch is a non-corrosive, non-skin irritant, and biodegradable surface etch that is as effective as traditional acids.
ACR Concrete & Masonry Etch can be used for a variety of uses. The formulation was made to replace 32% hydrochloric acid without the dangers associated with that hazardous cleaner. ACR Concrete & Masonry Etch contains no acid and is non-corrosive. And because it is 100% synthetic, no neutralizing step is needed. ACR Concrete & Masonry Etch is the easiest etching product you have ever used. The extreme hydrogen load in gives this product the punch it needs to dissolve calcium carbonate. But because the hydrogen in this product has a much stronger bond to the H ion then those in acids, ACR Concrete & Masonry Etch has a slower spending nature. This makes it ideal for use in detailed and architectural etching. And because ACR Concrete & Masonry Etch is non-fuming, it can be used indoors where using muriatic acid or hydrochloric acid would be problematic.
PRODUCT PROPERTIES
• Appearance: Clear Amber Liquid
• Specific Gravity: ± 1.12+-0.02
• Odor: Mild soapy
• Freezing Point: ≤ -260 F (-320 C)
• Boiling Point: ≥ 2140 F (1010 C)
• Solubility: 100% in water
PERFORMANCE CHARACTERISTICS
Non-Corrosive 100% Synthetic Acid
Non-Fuming Non-D.O.T. Regulated
100% Biodegradable Removes Rust
Etches Concrete Safe on Glass & Metal
OSHA and EPA Compliant Safe on Skin
STORAGE AND HANDLING
ACR Concrete & Masonry Etc has a shelf life of more than
one year. Product is freeze/thaw stable. Keep container
closed when not in use. Safety glasses are suggested when
handling this product. No special gloves or protective
equipment are required. Due to the product’s low pH,
aluminum piping and fittings should not be used. Consult
your authorized Alchemco sales representative for tank,
piping, valve, hose coupling and fitting recommendations.
PACKAGING
ACR Concrete & Masonry Etch is supplied in the
following sizes;
5 gallon Pails (18.92 liters)
55 gallon drums (208.2 liters)
WARRANTY & SYSTEMS
The following warranties are available when using
ACR Concrete & Masonry Etch:
• ACR 1-Year Limited Liability Material Warranty.
Project must be registered with the Technical Department
to ensure validation of the Limited Material Warranty.
TECHNICAL DATA
BIODEGRADABLE: Yes/100%
FORM: Liquid
ODOR: Mild Soapy Odor
COLD STABILITY : -26° F
DETERGENCY : Moderate
PHOSPHATES: None
WETTING ABILITY: Excellent
FLAMMABILITY: Non-Flammable
BOILING POINT: 214° F
SOLUBILITY IN WATER: 100%
VOCs: None
VOLATILE BY VOLUME: N/A
CARCINOGENS: None
SHELF LIFE: 1 Year
APPLICATION
1. ACR Concrete & Masonry Etch is a ready to use product.
Using a low pressure pump style sprayer, apply the product
to the surface of the concrete. The product should be applied
at a coverage rate of approximately 1 gallon per 480 - 500 square feet.
2. For best results, product should be applied when the
ambient temperature is 400 F (100 C) and rising.
3. Allow product to remain on the surface for 10-30
minutes if possible. Product will not over-react.
4. Product can be allowed to dry in place and the powder residue removed with a vacuum or broom. It can also be rinsed from the surface with clean water.
NOTE: TechCrete warrantied applications require the use of this product or one of the many ACR products. Chemical cleaning may require multiple applications and the use of different products to achieve complete cleaning. Other ACR products that may be utilized for surface cleaning and preparation on warrantied applications.
Check the Alchemco website (www.alchemco.com) for technical data sheets on cleaning and preparation products or for help on which cleaning product will provide the best result.
TOXICITY STUDIES
Toxicity Limits: Test Procedure OECD 202, 48 hr. LC 50 and
LD 50 (rat oral: NON-TOXIC
Mutagenicity Limits: OECD Guidelines Sec. 471 Chemicals:
NON-MUTAGENIC
Dermal Irritation & Corrosion
A modified Draize method was used as described in OECD Guidelines f or the Testing of Chemicals Sec. 404 and complies with the requirements of OECD Principles of GLP, Annex revised as of July 1992. ACR Concrete & Masonry Etch is classified as a “Very Mild Skin Irritant”.
Biodegradation & Aquatic Safety
Test Procedure: Hach Reactor Digestion method for Waste Water and Sea Water. Hach Reactor Digestion Method is a semi-micro adaptation of the Standard Methods . ACR Concrete & Masonry Etch is 100% Biodegradable.