I have been block fusing my interfacing for years – ever since I bought my first press about ten years ago. Six years ago, I purchased an industrial heat press for my business and became spoiled by it’s large 16×20 fusing area. You certainly don’t need a press for fusing but it does make the job easier and faster.
Why block fuse? I think it’s easier, faster and more accurate. No more fiddling with wiggly facing pieces and comparing them to the pattern to make sure they haven’t been stretched or distorted. I also always hate cutting out the interfacing pieces, blech. Additionally, you don’t have to worry about whether the interfacing shrunk during the fusing process.
To begin, I lay a Teflon sheet over my pressing surface. If my interfacing is a little larger than my fabric I don’t have to worry about getting the glue on my silicone pad.
Next, I lay the fabric face down on the Teflon sheet making sure the fabric is on grain. The rectangular surface helps me line everything up. I then lay the interfacing glue side down onto the fabric and mist the interfacing lightly with water.
Lastly, I cover the interfacing with another Teflon sheet and close the press for 10 seconds. Once the fabric has cooled, I turn the fabric over and repeat this process.
Then, I am ready to cut!