Flame Retardant Heat Shrink Sleeve (FCSM)

Question:  Does Raychem have a flame retardant product?

Answer:  Absolutely.  The most commonly sold flame retardant heat shrink tubing is Raychem's FCSM product. It is very, very similar to the WCSM product; but flame retardant.  It is rated for use at 2000 volts.  FCSM is available either coated (with a sealant) or un-coated (no sealant).  

Available in 1200mm sticks (4 feet) FCSM and having a 3:1 shrink ration; FCSM is a very versatile product; capable of serving multiple duties. 

Raychem Sleeves -S vs -U. What do they mean?

Question:  I'm looking at some of the Raychem / Tyco Electronics part numbers.  How do I determine if I need the -S or the -U part?


Answer:  That part of the shrink sleeve nomenclature lets you know whether the part you are buying is internally coated with an adhesive sealant or not.  Uncoated shrink tubing would offer electrical insulation and physical protection; but would not offer a true seal (in the sense that it could be underground or underwater as examples). 

Coated tubing on the other hand is used far more often than uncoated tubing.  It provides a true seal; provides stress relief; provides physical protection and it provides electrical insulation.

If you do happen to have an application that will require no sealant, there is a decent chance (on a select group of products) that you might be able to get an uncoated version.  If that is the case; you could likely save a little bit on cost.  Check with us to find out!

What is TECK Cable?

     Question:  What is TECK Cable?

Answer:  It is a flexible armored cable.  It utilizes a design of flexible armor

along with two layers of PVC jacketing.  It was originally used in mining

but has since taken on a wide range of different electrical applications.  

At first glance, splicing a TECK cable might seem complicated; but it really isn't.

That is, as long as you've got a Raychem TECK splice kit handy.  The TECK kit

utilizes multiple different Raychem shrink sleeves (WCSM and CRSM) in order

to recreate the same strength, thickness and electrical properties as the original cable had.  

TECK splices can be used on cable ranging from 1000 volts to 15kV.