GLASS DEFENDER® MD
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High-performance, invisible coating that protects glass from damaging elements and prevents scratching for up to 5 years
Intended Use
The Glass Defender Series is designed for all glass surfaces including plate or tempered glass. This product is not suitable for use in areas where food may come in contact with the protected glass.
Recommendations
In order to maintain the glass after using the Glass Defender Series, clean only with deionized water 2-3 times annually. Oily residues in typical surfactant based soaps and detergents attract, and glue, a variety of environmental contaminates to building surfaces, causing stains.
Product Information
Product Details
Equipment Needed
Application
Precautions
Tech Details
Warranties
Data Sheet
Product Details
Glass Defender MD (Medium Duty) is a proprietary blend of high performance, partially inorganic polymers. This product provides an invisible coating that protects plate or tempered glass surfaces for 5 to 10 years against most types of stains and minor scratching. At a microscopic level product cures to a hard rubberized coating.
This invisible coating is warranted by a 5 year warranty.
Glass Defender HD (Heavy Duty) will help to protect glass from stains resulting from adjacent oil-laden stone, such as precast that has been sealed with organic water repellents (i.e. 40% silane).
For best adhesion first use the Glass ReSurfacer Final Polish to prep the glass surface prior to the application of the Glass Defender Series.
ADVANTAGES
- Specifically designed for architectural glass surfaces
- Protects glass from stage 1 and 2 corrosion, stains and water erosion
- Helps reduce scratches
- Provides the longest lasting glass protection available
- Excellent beading capabilities
- Invisible protection
- Low Cost; only 5-19¢ per sq. ft.
- Allows windows to be cleaned using only deionized water
- Inorganic polymers resist aging
- Won’t fade, crack or peel
- Helps to prevent costly restoration
Equipment Needed
- Gloves and goggles
- Microfiber towels
- Application sponge
- Window cleaning bucket
- Clean, dry window cleaning brush or squeegee
Application
SURFACE PREPARATION
Protection performance warranties are contingent upon using either Presto’s EnviRestore® Glass Stain Remover or Glass ReSurfacer® Final Polishto prepare the glass surface immediately prior to the application of Glass Defender products. Remove all dirt from the surface. The level of protection will be sacrificed if all contaminants are not removed prior to use. Be sure to polish the glass surface with a rag to remove all restoration product residues. Do not use detergents on the glass between the restoration and the application of Glass Defender products. Apply the product immediately after the glass restoration process has been completed.
Precautions
Each type of metal has slightly different characteristics and temperaments. This product has been tested on most, but not all, types of metal. Individual testing is required to ensure the effectiveness of this product prior to use. Always examine test areas in direct sunlight from multiple angles.
Respiratory equipment (fine particle dust mask) is required while using Metal ReSurfacer. Take precautions to avoid inhalation of dry dust from this product. This product is designed for professional use and should only be used by a qualified individual.
Tech Details
| Glass Defender MD Product Info Chart | |
| Water Based | No |
| Combustible | Yes |
| User Friendly | No |
| Economically Efficient | Yes |
| Environmentally Friendly | No |
| Color | Clear |
| Smell | Petroleum |
Warranties
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.
Glass Defender HD: 10 years
Glass Defender MD: 5 years
The performance warranties of this series are dependent on three factors:
- Combination of products selected
- Strict adherence to the application instructions
- Exposure to damaging environmental conditions
In normal conditions, these products will last as stated. In situations where the products are exposed to excessive UV rays, constant exposure to water or harsh chemical applications, reapplication may be needed more frequently. The length of time for which the surface will remain protected is directly related to its amount of exposure to damaging elements. It is the responsibility of the purchaser and/or the purchaser’s exterior maintenance service provider, to monitor protected surfaces and determine the necessity of reapplication. It should also be considered that the glass on different sides of a building will age differently due to sunlight exposure. Typically, the coating on the north side of a building will last longer than the same coating on the south side of the building and require reapplication less frequently.
This warranty states that when this product is used in accordance with the application instructions set forth in this document, and not exposed to conditions outside of the documented Environmental Conditions Form filled out prior to purchase, and provided no harsh chemicals or abrasives have been used to damage or abrade the protective coating, the glass surface will be protected from previously identified stains that cannot be removed with standard cleaning procedures for a period of 5 to 20 years.
Length of warranty is to be determined by Presto after examination of the Environmental Conditions Form.
Data Sheet