3M has no obligations under this warranty with respect to products that have been modified or damaged through misuse, abuse, accident, neglect or mishandling by Purchaser or Purchaser's customer. Graphics applied to unsound surfaces or to surfaces which subsequently crack, peel, de laminate, outgas, or become damaged beneath the graphics are not warranted for performance. Damage from fire, structural failure, lightning, and other force majeure events are not covered. B. Unintended Use of Products 3M products covered by this Warranty are intended only for use by professional users and only for those intended uses described in 3M Product and Instruction Bulletins. Before using for any other application, user shall determine the suitability of the product for its intended use and user assumes all risk and liability in connection therewith.
All glass has a tendency to absorb heat when exposed to sunlight.
The degree of absorption across the glass can vary due to a variety of circumstances such as partial shading, heating and cooling vents, and the insulating characteristics of the frame. The temperature difference across the glass, if great enough, can produce stresses which may cause glass break age. The ability of glass to resist breakage due to temperature stress is affected by size, thickness, quality of cut, edge treatment, tinting of the glass, and the frame design. Very dark colors must not be used in window applications for other than narrow striping or narrow stroke letters. Where reference is made in Commercial Graphics Division technical literature to products made by a manufacturer other than 3M, it shall be the user's responsibility to ascertain suitability and follow the precautionary measures for their use as outlined by the manufacturer.