Black 1/4" x 1/2" Single Sided Foam Glazing Tape

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CRL 74814X12BL Black 1/4" x 1/2" Single Sided Foam Glazing Tape

Item #: 74814X12BL by CR Laurence

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In Stock $19.63 /roll


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  • Excellent Adhesion to Wood, Vinyl (Rigid PVC), Aluminum, and Glass
  • Superior Resistance to Weathering, Oxidation, and UV Exposure
  • Meets AAMA 810.1 Certification
  • Aggressive Adhesive
  • Service Temperature Range From – 40°F to 180°F (-40°C to 82°C)
  • Available in Gray and Black

Feet per Roll

50 ft (15 m)

Thickness of Tape

1/4" (6 mm)

Width of Tape

1/2 in (13 mm)

Roll Length

50 ft (15.2 m)




50' (15.2 m)









Roll Length (Feet)


CRL Foam Glazing Tape is a closed-cell polyethylene foam sealant in tape form. The aggressive acrylic adhesive is formulated to position the foam on curved or irregular surfaces with the slightest pressure. Adheres to wood, vinyl, aluminum, and glass. It can be used as an exterior glazing sealant - particularly where glass repositioning is important before the final setting.
CRL Foam Glazing Tape is specifically designed to be a primary or secondary seal in a variety of glazing systems. It is self-shimming, so you don't need shims or spacers. The tape is constructed with a patented cellular structured foam that is particularly resistant to weathering and water-absorption, while providing a superior long-lived seal.
Joints sealed with CRL Foam Glazing Tape with Adhesive on One Side can be opened and closed, repositioned, and used without the sticky mess associated with sealants. Use this tape in demountable partitions, louvers, formwork, access panels, doors, and other operable or temporary joints. The non-adhesive face will release cleanly from most surfaces. When a joint is opened the tape recovers most of it original uncompressed thickness and is ready-to-use again.
• Simplicity: Requires no clean-up, easy to handle, no waste, requires no mixing or special application equipment.
• Preformed tape provides consistent and accurate application. No shim is required.
• Remains flexible at low temperatures and dimensionally stable at high temperatures.
• Special non-yellowing, non-staining water-white adhesives provide a clean, aesthetic appearance.
• Superior resistance to weathering, oxidation, and ultraviolet exposure.
• Seals effectively against water, dust, and light.
• Variety of available sizes
A minimum of 30% compression must be maintained to provide an effective moisture seal. In small lites, this may be achieved by applying pressure directly to the glazing tape when installing glazing stops. However, in most lites, the use of a compression wedge gasket is recommended. Apply with firm, uniform pressure to a clean, dry surface without stretching (the paper liner indicates if the tape has been stretched). Tape corners should be cut and butted together, rather than overlapped or radiused, and a thin bead of an approved seal sealant should be applied at the intersection after the liner has been removed. In-service temperature range is –40° to 180° (-40° to 82°C). CRL Foam Glazing Tape is compatible with other sealing and glazing compounds.
ENERGY STAR®– CRL is an ENERGY STAR® partner, and our fenestration foam glazing tapes carry the ENERGY STAR® seal. ENERGY STAR® is a government backed program helping businesses and individuals protect the environment through superior energy efficiency.
Product Warning:
CRL Vinyl Foam Glazing Tape must be compressed 15% to maintain an effective seal. In small lites, this may be achieved by applying pressure directly to the glazing tape when installing glazing stops. However, in most lites, the use of a compression wedge gasket is recommended.

Most shipping weights are approximate and have not been verified. If the exact weight is needed in order to determine shipping costs, and shipping costs are required in order for you to complete your order, please request this prior to submitting your order by contacting CRL Customer Service. Product images shown are of the actual product or a close representation. Colors can vary depending on your computer's video card and on how your monitor's color is adjusted.