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Cast-O-Magic® Concrete Form Release Agent 320 VOC

320 VOC Concrete Form Release Agent from Cast-O-Magic®


is formulated to meet EPA California, Northeast States OTC and Great Lakes VOC regulations. This mineral oil-based product has many of the same attributes of the popular 320. It can be used on most types of forms and is not damaged by freezing temperatures. Using it at low temperatures may cause a thicker film which may promote more surface voids. It has little or no odor and is non-irritating. Apply minutes or days before placing concrete.


Cast-O-Magic® Release Agent 320 VOC Specifications


Physical Properties are:

  • Specific Gravity……………...0.888
  • Flash Point…………………..165°F
  • Boiling Point…………..over 240°F
  • Freeze Temperature………….-15°F
  • Freeze Damage………………None
  • Wt./Gal…………………....6.89 lbs
  • Viscosity(Centistokes)..5.06@ 40°C
  • Color………………………..Amber
  • Opacity………………………Clear
  • Solubility in Water……...Insoluble
  • VOC Content……246 Grams/Liter (2.05 lbs./Gal.)


Surface Preparation:

Form surfaces should be free of existing oil, rust, and concrete buildup prior to application. It can be applied minutes or days before casting.


  • Cast-O-Magic® 320 VOC should be applied in a thin film for a maximum performance and economy by spray, mop, roller, or brush.
  • It should be applied before reinforcing steel is in place.
  • Care should be taken to avoid over application.
  • Excess material in the form of puddles should be wiped up.
  • Over application can cause concrete build-up, soft spots, excessive surface voids and discoloration of concrete.
  • Application at subfreezing temperatures promote thicker film thicknesses which cause more surface voids, Dilution with solvents is not recommended. It is to be used as is.
  • Dilution can cause concrete build-up and difficulty in stripping. This may also violate EPA and California VOC Regulations.




  • Cast-O-Magic 320 VOC will keep indefinitely in sealed containers.
  • Do not store near heat sources.
  • Cover, or store drums on side to prevent water contamination.
  • To be used as is. Dilution can cause concrete build-up and difficulty in stripping


  • On smooth, non-porous form surfaces such as steel, aluminum, plastic and high density plywood – 1500 sq. Ft./Gal.
  • On semi-porous form surfaces such as medium density plywood and paper column forms – 1000 Sq. Ft./Gal.
  • On very porous form surfaces such as low density plywood and concrete – 500 Sq. Ft./Gal.
  • Coverages may vary due to person applying material and condition of forms.


Keep out reach of children. Do not take internally. Do not use near fire or open flame. Use with adequate ventilation and avoid prolonged contact with skin.



Basic Use:

Cast-O-Magic® 320 VOC is a concrete release agent designed to permit easy removal of forms from hardened concrete. It also works well to prevent sticking of concrete on pallets, mixers, and other equipment.


  • Assures positive form release.
  • Minimizes surface voids.
  • Eliminates damaging and expensive form cleaning.
  • Will not stain or discolor white or colored concrete.
  • Will not impair bonding of surface coatings such as paint, plasters, mortars, etc.
  • Can be applied at any temperature.
  • Meets VOC regulations.
  • Is easy to use-low odor, nonirritating.
  • Protects forms.
  • Works on steel, aluminum, wood, fiberglass, and plastic forms.



Cast-O-Magic 320 VOC Concrete Form Release Agent Sizes


Cast-O-Magic® 320 VOC is available in 55, 5, and 1 gallon containers. It is also available in disposable or recyclable 275 gallon Magic-Pak.


Material costs can be obtained by contacting The Hill and Griffith Company through our contact form.


Technical Services can also be obtained by contacting The Hill and Griffith Company through our contact form.


Cast-O-Magic® 320 VOC should not be used on latex rubber molds.


Cast-O-Magic® 320 VOC is a solution of releasing components dissolved in mineral oil.

It meets EPA and California VOC regulations. It contains no chlorinates solvents and no carcinogens. It is
non-flammable and non-irritating. 

VOC Cast-O-Magic Concrete Form Release Agent Magic Pack

Contact us for product information or request bulletins and technical papers.

Download a PDF version of this page.

Hydraulic Fluids and Specialty Industrial Lubricants

Griflube® Hydraulic Fluids biodegradable, flame-resistant and high-pressure hydraulic fluids
Griflube® Slide-Way 68 & 220 Lubricants formulated using severely hydrotreated napthenic base oils and state-of-the-art additives


Metalworking Fluids

Grifcut™ Metalworking Fluids heavy-duty synthetic and semi-synthetic metalworking fluids



Murphy Spray Gun rugged cast iron high-solids, sprayer that can stand up to rough treatment and still provide a reliable pattern.
Pump Up Sprayer 3.5-gallon spray unit, funnel top tank for easy fill and closure


Bulletins and Technical Papers

“How To Lose A Customer in 10+ Easy Ways”, by Bob Waterloo, HG Distribution Manager
“How Safe & Legal Is Your Concrete Form Release Agent?”, by Bob Waterloo, HG Distribution Manager
“Proper Application of Concrete From Release Agents”, by Bob Waterloo, HG Distribution Manager

Form for requesting product bulletins and technical papers

Customer Service

Technical Services and Support - On-site casting defect investigations, product testing, machine start-ups and much more. Also, lab facilities are available to provide testing upon request.

Request samples
Arrange a Casting Solutions® Visit


Packaging & Logistics

Custom Packaging
HG Logistics LLC



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