Freqently Asked Questions

Q: How do I size heat shrink tubing correctly?
A: The inside diameter of shrink tubing depends on the outside diameter of the substrate onto which you will be shrinking. In this WEB site, we provide expanded inside diameters and recovered inside diameters for your referral. Choose an expanded size that fits over your substrate and will shrink down with heat more than the substrate outside diameter for a snug fit. Shrink ratios are available in 2:1, 3:1, and custom ratios. For a thinner recovered tube wall thickness, choose an expanded size that just slips over the substrate.

Q: Why does my heat shrink tubing look too big for the application?
A: Before shrink tubing is heated, it may be 2 or even 3 times the diameter that it will become after heating. Fear not, if sized correctly the tubing will shrink down to a snug fit. If the tubing is still too loose then either it was sized incorrectly or it has not been exposed to enough heat to maximize shrinkage.

Q: What is the difference between PVC and Polyolefin?
A: They are completely different polymers with different advantages. PVC has better clarity, colorability, UV resistance, chemical resistance, and is less expensive than polyolefin. Polyolefin has been a workhorse in the electronics market for years because of its wider operating temperature range, extended shelf life, light weight, and proven track record. The key to product selection is to use the product that meets your requirements and specifications.

Q: What specifications do your products meet?
A: Many of our products have been tested to UL/CSA, IEC, ASTM, Military specifications. If you need a certain product specifications, please visit our product information section given on the website OR call us for any help.

Q: Can you provide a product if I provide you with a competitor's name or number?
A: Absolutely, we maintain a quick cross-reference guide that contains most of the major tubing manufacturers.

Q: Do you have any distributors who resell smaller quantities?
A Yes we do. For a distributor near you, please call us at 91-11-6261344 or 91-11-6261345

Q: Can you color match?
A: Yes we can.

Q: What is the minimum Inside Dimension and maximum Inside Dimension that you can provide?
A: The minimum we can provide is 0.8mm and the maximum is 150mm under different product category, which covers a large range of applications.

Q: Can I have a product manufactured to my specific requirements?
A: Yes you can. We can provide your requirements to our Principals Research & Design group that can build a product to your exacting specifications. Please contact us for more information

Q: Are the minimum order requirements for custom products out of this world?
A: Not at all. The minimums depend on the type and size of the product being designed and they are quite reasonable given the value you'll receive.

Q: Can you cut to size?
A: Yes, we cut to size requirements of the clients.

Q: How thin can you make the wall of your tubing?
A: Our wall thickness' range from 0.20mm to 0.5mm (after the tube is recovered by heating) depending on diameter and different product category.

Q: Do the products have a shelf life?
A: Yes, however most polymers, if stored properly, will last for years. Cool, dry conditions, away from sunlight, are the best conditions for heat shrink tubing to be stored. Each polymer has a different shelf life, so contact us for more information.