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Heat shrink tubing

Geo-Shrink® heat shrink sleeving

Geo-Shrink® heat shrink is designed for unconsolidated and friable reservoir sediment core analysis.


Geo-Shrink® sleeving is made from special fluoropolymers, which were developed in 1992 and have gained acceptance with a wide circle of core analysis contractors, oil company exploration and production research laboratories.

Geo-Shrink® is available in a wide range of sizes, from 31mm to 160mm ID, and 0.50mm and 0.70mm thickness. We can also offer custom under expanded sizes cut to length, for specific testing applications. Find our standard Geo-Shrink® Heat Shrink Sleeving Sizes.


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Geo-Shrink® Core Sleeves

The mounting technique in conjunction with un-sintered PTFE wrap offers a significant advancement from malleable metal foil tubes for the ease of mounting frozen and punch cut plugs.

When the end-faces of plugs are protected with a combination of fine and course stainless steel screens and retained by Geo-Shrink®, the resultant assembly can be safely subjected to extensive solvent extraction, drying and subsequent core analysis in a series of increasing complexity.

Geo-Shrink® Heat Shrink Unique Properties

  • Can be shrunk onto frozen, punched and standard core plugs

  • Temperature stable in live crude and reservoir brine to 200 °C

  • Relatively low shrinkage temperature

  • Completely unaffected by simulation brine

  • Stable specific gravity

  • Transparent

Standard Geo-Shrink® Heat Shrink Sleeving Sizes

Core Dia. (inch)
Adtech Part No 
Supplied ID (mm)
Recovered ID (mm) 
Wall Thickness (mm) 
1 GFS23 31 23 0.50
1.50 GFS32 43 32 0.50
2 GFS46 62 46 0.50
2.50 GFS56 76 56 0.50
3 - 3.50 GFS65 80 65 0.50
4 - 4.50 GFS95 115 95 0.50
5.25 GFS113 150 113 0.70
6 GFS125 160 125 0.70


If you’re unsure which fluoropolymer products are right for your application, contact our customer service team

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