The SRT-HT Series of retroreflective targets is designed to be used in high temperature environments.  Target dots are 3M^® 7610 retroreflective material, placed on a DuPont Kapton^® backing, which offers additional stability when subjected to large temperature changes.  This series employs a pressure-sensitive acrylic or silicone adhesive (your choice), and may be applied to a variety of materials.  We always recommend an initial trial on a test surface to determine ease of removability and characteristic of any residue that may be left.

This series is available in two configurations (photo at right):

• Individual targets.  A roll of stick-on targets that may be individually peeled off.  (Used for random placement on the measuring surface or for measurement of specific features.)
   
• Consecutive targets.  A roll of targets, all spaced a specific distance apart, that may be cut by the customer into strips of desired length.  (Saves valuable setup time when creating a grid of targets or when establishing contour lines.)

The SRT-HT series may be ordered in increments of 1,000 target dots, with a minimum order of 1,000 dots.  Rolls have a maximum length of 200' (61m), and the number of rolls delivered depends upon the number of targets ordered as well as the center-to-center spacing of consecutive targets.

Different background colors.  We offer a choice of two background colors: orange (often easier to find by eye) or black (provides more contrast with the target dot).

Various shapes.  There are several shape configurations from which to choose: circle, square, rectangle, tabbed rectangle, and narrow tabbed rectangle. The rectangle is merely a square that has been trimmed in order to reduce the amount of adhesive on the measuring surface.  The "tabbed" configurations offer a small tab on each side of the target dot, to which no adhesive is applied.  This tab provides a small "lifting handle" to make target removal easier.

Different adhesives.  There are several options of adhesives - silicone or acrylic (good up to 300^°F or 149^°C), as well as very high temp silicone and very high temp acrylic (good up to 500°F or 260^°C).  The acrylic adhesive has passed NASA's outgassing test.

Adhesive thickness:  Adhesives also come in either a 0.001" thickness or 0.002" thickness.  Extra thickness equates to extra "holding force".

Construct your desired part number using the part number construction guide and values from the tables below.  These tables show many of the typical dot size and spacing options.  However, other configurations are also available.  Contact us if you don't see the dot size or spacing that you are looking for.

Part number construction: Roll of individual stick-on targets Roll of equally spaced targets