e.10" W-Series Hand Press Double Impulse Sealer w/10mm Seal Width Hand press operation No warm-up time Suited for sealing thicker materials All metal constructionW-2510HT is a double impulse sealer geared for sealing thicker materials such as foil gusseted bags (i. Hold down for an additional 2-3 seconds after the timer light goes off to set the seal. The W-2510HT can seal materials up to 10" wide and 20mil total thickness producing a 10mm wide seal.