What size heat shrink tubing do i need

- Oct 25, 2018-

Step 1.test the cable OD,  find a correct tubes with ID larger than the wire and cables OD. 

Step 2. cover the wire or cable by tubes, then heat the tube by heat gun, finally the tube will shrink to the cable closely, if the cable OD is irregular, tring to take 3:1 or 4:1 shrink ratio to ensure the tube shrink closely to the smallest part of cable.