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The 90° Stealth Seamer™, Manual is the ideal solution for consistently creating high-quality perpendicular seams such as mitered aprons, butt-joints, and compound corners—without the hassle of straps or bar-clamps. It is the only 90° seamer that can also be inverted for inside corners.


The product’s proprietary non-marking cups feature our FTS™ (Flexible Triple Seal) technology that locks-in vacuum and provides optimum hold—even on textured and leathered materials. Sold individually; not recommended for porous material or heavy waterfall pieces (see 90° Auto for these applications).

90° Stealth Seamer™, Manual

    • Consistently create high-quality, expertly aligned perpendicular seams
    • Ideal for mitered aprons, butt-joints, compound corners, and inside corners
    • Non-marking, proprietary synthetic* rubber cups are highly-durable and feature FTS™ technology for optimum hold, even on textured materials
    • FTS™ vacuum cup technology for optimum hold on textured and leathered materials
    • Knurled rollers and fine-tune levelers align and dial-in precise angles
    • Counter-pressure leveler overcomes lower outswing of vertical pieces
    • Easy to read indicators to monitor vacuum pressure at a glance
    • Cups can be re-pumped without loss of remaining pressure
    • Includes: One 90° Stealth Seamer™, Manual and one 25 yd sample roll of Kung Fu Tape®
    • Kung Fu Tape® secures the waterfall piece and tightens the seam
      • Unique serrated edges for easy tearing
      • Leaves no residue upon removal up to 10 days after application
      • Strong but flexible and conforms to edges and corners
      • Stretchy - holds seams tight (acts like a clamp)
      • Gentle on natural stone and sensitive materials
      • Leaves no ghosting or shadows on your material
  • Product Name 90° Stealth Seamer™, Manual
    Product Guide 90° Stealth Seamer™, Manual Product Guide (pdf)
    Part # 5145-90M-17
    MSRP $450.00 USD, $630.00 CAD
    Patent Applicable Patents
    Includes One 90° seam setter unit with 5" gray cups, two cup covers, and one 25 yd sample roll of Kung Fu Tape®
    Product Dimensions 18" x 10" x 4"
    Product Weight 5.5 lb
    Package Dimensions 20" x 10" x 4"
    Shipping Weight 7 lb
    Materials Anodized aluminum, aluminum, reinforced polymer, silicone, stainless steel, zinc plated steel, and polyethylene vinyl tape with synthetic rubber
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