General Installation Instructions for Thermafix Heat Shrink Products
Always select the largest size of tubing that will still fit snugly after shrinking, according to the shrink ratio of the product being used. For example, for a 2:1 product, select approximately twice the diameter. Cut the tubing to the exact length required (ie, no shrinkage in length) with a clean, square cut to avoid splitting. Position tubing over object a heat evenly until tubing shrink into place or will shrink no further. Products containing pre-installed adhesive may need extra heat to melt and flow the adhesive for proper application. nd s Keep the heat source or product moving, so the heat is not concentrated in one spot. Keep the heat source at least one inch away from tubing, using a lowintensity heat source such as a hot air gun, oven, infrared heat source or soft (yellow) flame.