Metal Protector MD

Metal Protector MD Installs an invisible, protective shield without altering the appearance of the metal.


This product formulation contains high-performance silicone designed to install durable, long-lasting protection to a variety of metal surfaces, including anodized aluminum, which is commonly found on window mullions. 

This product shields metal surfaces from water and oxygen, and helps prevent these elements from aiding in corrosion of the metal; thus preventing the need for frequent restoration. A barrier is created between contamination found in the environment and the metal surface, forcing stain-forming contaminants to settle on the polymeric coating.  These contaminates are then easily cleaned during regular window cleaning maintenance services. 

This coating will last up to ten years depending on individual environmental conditions and the frequency of maintenance services performed on the substrate.


  • Longest lasting metal protection
  • Fights stains and corrosion
  • Cost-effective
  • Helps to prevent frequent costly restoration
  • Won’t fade, crack or peel
  • Extremely damaged window mullions can be made to look new using Metal Protector HD
  • Allows metal to be cleaned using only deionized water


For use on a variety of metal surfaces including, but not limited to, anodized aluminum.


MD: 800 to 1250 sq. ft. per quart.

Metal Protector MD Product Info Chart
Solvent Solvent Based
Flammable Yes
User Friendly No
Economically Efficient Yes
Environmentally Friendly No
Color Clear
Smell Petroleum


For best adhesion and protection, first restore surface with Metal ReSurfacer®. If contaminants are not removed prior to use, the adhesion ability of Metal Protector may be compromised. If applying this product after restoring the surface with EnviRestore Metal Stain Remover, use a solvent wipe to prepare the surface. Protect unintended surfaces. Always test in a small, inconspicuous area prior to application.


For invisible protection using Metal Protector MD: Apply product to metal surfaces with a sponge or rag. Spread Metal Protector in a circular, overlapping motion making sure to thoroughly work the product into every inch of the metal with multiple strokes. Once the area has been completely covered, use an absorbent rag or towel to remove excess residue and dry surface. For superior, yet invisible protection, apply product to surface creating an evenly wet coating and allow product to dry. Do not disturb the surface for 24 hours. Any wet rags that are laden with product may be flammable. special precautions should be taken to protect these items from exposure to any ignition sources.


In most circumstances, protected metal surfaces can be cleaned using only deionized water. 


The information provided by Presto for the safe and effective use of this product, and all of our products, is believed to be good and accurate. However, due to the many different possible applications of this product, careful considerations should be made when selecting its suitability for each surface.

The information provided should never be substituted for individual testing to ensure the product’s compatibility with each surface intended for use. The purchaser shall assume all responsibility for determining the suitability of this product. When used as intended, this product will perform as stated. No other warranty can be made for this product, verbally or written.

Presto warrants this product to be free from defects. In the event this product is found to be defective, we will provide a sufficient amount of product to replace the defective product.


  • Metal Protector MD Product Data Sheet
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  • Metal Protector MD Material Safety Data Sheet
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  • About Architectural Metal Restoration & Protection Brochure
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Purchase 1 Quart For $52.13

Purchase 12 Quart Case For $618.38
View Before & After Photos

Prior to application of the Metal Protector Series products surface preparation or restoration is required by using the following products. 

  • Metal ReSurfacer®: Completely restores metal and anodized aluminum frames to their natural sheen without removing or damaging the protective coating; will remove beginning stages of corrosion, but will not remove pitting
  • EnviRestore® Metal Stain Remover: Designed to safely and efficiently remove stains from anodized aluminum and aluminum composite materials while simultaneously installing temporary surface protection

Kim Jurica,
May 5, 2017, 11:27 AM
Justin McGarty,
May 17, 2013, 12:50 PM