​Joint Specialists Ltd.​               936/321-3333            Pipeline Coating Experts

Frequently Asked Questions

(Click the question to read the answer at our blog)

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Ordering / Selling Questions

 

• How Wide of a Shrink Sleeve do I Need?

• ​What are Standard Shrink Sleeve Widths?

• What Information do I need to Quote a Shrink Sleeve?​

• ​Which Product Should I Use for a Road Bore?

• What is included in a DIRAX kit?

• How many field joints in a mile?

• What is a heat shrink used for on a pipeline?

• Can I get a general Covalence product summary list?

• How does shrink sleeve nomenclature work?

• What is a wrap around shrink sleeve?

• Has DIRAX been used much?

 

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Technical / Specification Questions

 

• Are Heat Shrink Sleeves UV Resistant?

• ​How do I Repair a Damaged Shrink Sleeve or PE Coating?

• ​How Do I Coat a Bend or Length of Bare Pipe?

• What does Self-Healing Mean?

• How do Heat Shrink Sleeves Shrink?

• What is the difference between radiation crosslinking and chemical crosslinking?

• Has DIRAX been used much?

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Installation Questions

 

• ​What Happens if I Overheat a Shrink Sleeve?

• What is a PCI (Permanent Change Indicator)?

• Is Surface Prep Really Important?​

• How long do I have to wait before backfilling?

• How long after installing DIRAX can I start the bore?

• How long after install can the shrink sleeve hit the stinger?