A clear - non-staining lubricant. A drop on the sewing machine needle will help reduce skipped stitching and the needle friction heat while sewing through heavy material and sheer fabric. Collin's Sewer's aid may also be sparingly applied to embroidery thread or bobbin thread. This makes machine sewing and embroidery smoother. Sewers Aid lubricates the thread guides and tensions as it passes through the machine helping to eliminate skipped or erratic stitches.
Caution: Do not use on machines with automatic thread tension. If silicone gets into the tension assembly it will create problems with the auto tension mechanism.