Testex
the low-cost way to measure profile
In July 2010 Testex introduced a new "high temperature" version of its Coarse and X-Coarse grades of Press-O-Film replica tape. Press-O-Film HT is formulated for better performance at the elevated temperatures encountered in the most challenging environments. While stable at 140 °F (60 °C), earlier formulation Press-O-Film gradually softened at higher temperatures. The new Press-O-Film HT adds a 12 °F (6 °C) safety margin.
Other physical properties remain nearly identical except for some loss of agreement where different grades overlap. The effect is most noticable between Coarse and X-Coarse grades. The new instructions will recommend that where these two grades give different profiles and both profiles are in the range 1.5 to 2.5 mils (38 to 64 µm) those differing values be averaged.
Tape prices will remain the same and in most applications users will notice little change in the product itself. Press-O-Film HT will be sold on a different label but at the same price. The new version will replace the existing product.