What are Testex Adhesive Tapes?

Adhesive Specialities manufactures Testex Adhesive Tape, which is useful for the Paint and Coatings Industry. Testex Tape is made up of a layer of crushable plastic microfoam coated onto an incompressible polyester substrate of highly uniform thickness. Testex Tape offers a simple way of obtaining an impression of a surface. The impression can then be measured in one of the two ways as under: 

1. An optical or other electronic profiling device can be used to produce maps of the replica’s surface topography.
2. A simple micrometric digital or dial thickness gage can be used to determine the average maximum peak-to-valley roughness, or ‘profile’, of the replicated surface. 

How do Testex Tapes work?

When a Testex Tape is compressed against a surface, the foam collapses to about 25% of its pre-collapse thickness. During compression, the foam acquires an impression of the surface against which it is burnished. The highest peaks on the original surface displace the fully compressed foam and come to rest against the polyester substrate. The deepest valleys on the original create the highest peaks on the adhesive tape. Consequently, the thickness of the compressed foam equals the average maximum peak-to-valley profile. The overall thickness of the compressed film is this profile plus the thickness of the incompressible polyester. A spring loaded micrometer gage is used to measure the thickness of the tape. Subtracting the substrate thickness from this gives the average maximum peak-to-valley roughness or ‘profile’.

Textex Adhesive Tapes Uses and Properties :

• Testex adhesive tape is used for measuring blasted surface profiles known in the paint and coatings industry as press-o-film or replica tape.
• By placing the adhesive tape on the surface and rubbing over it, the Rt (total roughness) or peak-to-valley height of the profile can be taken and then measured with a film thickness meter.
• Testex adhesive tapes consist of a layer of compressible foam affixed to an incompressible polyester substrate.
• When pressed against a roughened/grit blasted (steel) surface, the foam collapses acquiring an impression of the surface.
• One box of Testex contains tape for 50 measurements.

Uses of Testex Adhesive Tape in Various Industries : 

Paint and Coatings Industry :

Adhesive Specialities manufactures a wide range of adhesive tapes, including specialised testex adhesive tapes, suitable for the paint and coatings industry. Testex tapes are used for measuring blasted surface profiles known in the paint and coatings industry as press-o-film or replica tape. These adhesive tapes consist of a crushable plastic microfoam. 

At Adhesive Specialities, adhesive tapes for the paint and coating industry are available in various types, colours and thicknesses. Reach out to us today, to get the most suitable adhesive tape solution for your requirements.