Insulating tape from the appearance to see whether there are defects, whether the lamination of insulating tape is adhered to, whether there are wool edges, whether smooth to see the tape material (electrical insulating tape has many kinds, not one by one to introduce the quality of material evaluation, in most cases also depends on the use of the situation).

Look at glue, now most of the glue has evolved to environmental protection, the taste is very important, if very pungent, it is more likely to be inferior (not all insulation tapes), and then whether the insulation tape is anti-sticking when pulled down, whether there is residual glue after use, if residual glue in the product, this is the fatal point of inferior tape.

Notes: PVC material is basically the same, mainly look at the glue, poor quality insulation tape after a period of time, and then unravel, you can see that the glue and PVC material separation, it looks sticky, very uncomfortable, and good quality insulation tape will not appear this problem.