Pressbond P8525E, 1/4" Thick x 1/2" Width x 50Ft Length Foam Gasket Tape

Pressbond P8525E foam gasket tape: 1/8 inch thick, 1/2 inch wide, 50 foot rolls. Closed-cell foam tape with adhesive backing seals enclosure doors, panel edges, HVAC ducting joints, and weatherable seams against dust, air, and vibration.

Panel shops and HVAC installers run gasket tape by the case: it replaces die-cut gaskets on one-off enclosures and seals field joints without fabrication, conforming to lips and corners a rigid gasket cannot follow.

New in box. Sixty-four rolls available; price is per roll.

Surplus stock in the exact size is how maintenance departments keep consumable positions filled without waiting on a distributor order.

New surplus, available from King Surplus inventory in Del Rio, Texas.

• Manufacturer: Pres-On Corporation, 2600 E. 107th Street, Bolingbrook, IL 60440 USA (sold under the Pres-Bond brand; the record spells it "Pressbond")
• Series: P8500E, Polyether Foam Tape, Ultra Soft
• Part number: P8525E (the P8500E series code for 1/4 in thickness)
• Material: Polyether polyurethane, open cell (reticulated)
• Hardness: Ultra soft
• Color: Gray
• Thickness: 1/4 in
• Width: 1/2 in (from this record's own title and size fields; Pres-On lists series roll widths of 1/4 in up to 50 in and does not publish a per-width part number)
• Roll length: 50 ft (Pres-On's published roll length for the 1/4 in to 5/8 in thicknesses in this series)
• Adhesive: rubber, permanent, single-sided PSA, direct wet coat, with release liner
• Adhesive functional temperature: 0 to 140 deg F
• Foam temperature rating: -20 deg F to 200 deg F
• Density: 1.45 lb/ft3 (ASTM D3574)
• Tensile strength: 20 psi typical, 15 psi minimum (ASTM D3574)
• Elongation: 200 percent typical, 140 percent minimum (ASTM D3574)
• Compression deflection: 0.7 psi at 25 percent compression
• Durometer: less than 10 Shore OO
• RoHS / REACH: compliant
• Applications: filter gaskets, HVAC, packaging, door gasketing, automotive and RV, cushioning and gap filling
• Spec Basis: corrected 2026-09-16. NOT verified against the item - the two photographs on this record show a bare roll of foam tape and one King Surplus inventory label with a QR code; no manufacturer label, part number or printing is visible anywhere on the product. Manufacturer and part number therefore rest on the record's own identification (FID 56 / FID 57) and title, NOT on the item. Everything above other than the width is taken from Pres-On's own published P8500E series product data (preson.com, citing the P8500E data sheet revision 04.04.2023), whose series-code table reads 1/8" P8512E, 3/16" P8518E, 1/4" P8525E, 3/8" P8537E and whose roll-length table gives 50 ft for the 1/4 in to 5/8 in thicknesses. CORRECTED, and this is the substantive finding: the previous entry gave thickness as 1/8 in. A P8525E is 1/4 in thick; 1/8 in is part number P8512E, which Pres-On supplies in 100 ft rolls, not the 50 ft this record states. The 50 ft length agrees with 1/4 in and not with 1/8 in, so the part number and the length both point to 1/4 in and the thickness figure was the odd one out. FLAG FOR A PERSON: the item title (FID 11) also reads 1/8 in thick and was not changed here - this field does not own the title. Either the title needs the same correction, or the roll needs measuring to establish which of the part number and the stated thickness is the error.