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V778 - Single Coated, Closed Cell Polyvinyl Chloride Foam


 Saint-Gobain

E-Mail this datasheet
FEATURES
  • Std Roll Length: 16.66 yards
  • 30% compression provides an excellent seal against light, dust and water in mechanically fastened assemblies
  • Adhesive is on the unwind side
  • Tensile=17PSI
  • Thermal conductivity=.27
  • Density=6#/cu.ft.
ADVANTAGES
  • Excellent resistance to weather, fungi, and oxidation provides a long sealing life
  • Superb closed cell structure of foam provides a positive seal
  • Will not crack in cold temperatures
  • Low force to compress means faster and easier formation of a positive seal
  • Flexibility makes it easy to radius corners
  • Low density sealant facilitates the assembly of large wall systems
APPLICATIONS
  • Curtainwall
  • Precast concrete wall
  • Refrigeration
  • Telecommunications
  • Pneumatic system seals
  • Retail weatherstrip
  • Bus & off-road vehicles
  • Air conditioning
  • Environmentally controlled rooms
MARKETS SERVED
  • Construction
  • Refrigeration
  • Telecommunications
  • Truck & trailer
  • HVAC
COLORS
  • Black
GENERAL INFORMATION
V778 is a 1/4" thick, single coated, closed cell, PVC, low density foam primarily used to seal thin gauge metals & plastics. Norseal® V770 series.

PRODUCT CONSTRUCTION
  Type
Mil Thickness
Backing PVC - Polyvinylchloride
Adhesive (unwind) Acrylic
Liner Type (outer) Paper
Foam Cell Type Closed
Thickness (total)  
250.00

PRIMARY PHYSICAL PROPERTIES
  Unwind Side   Liner Side
Adhesion-to-Steel - 90° Peel 24.00 oz/in  
Adhesive Activation Pressure  
Elongation Percent 125.00%  

SECONDARY PHYSICAL PROPERTIES
Water Resistant Yes
UV Resistant Yes
Water Absorption Percent 3%
Density Low
Force-To-Compress 2.00
Compression Deflection % 1%
Compression Percent 8%
Hardness ShoreOO 18

THERMAL / ELECTRICAL PROPERTIES
Minimum Application Temperature 40°F
Minimum Service Temperature -15°F
Maximum Short-Term Temperature 160°F

 
  • The physical properties listed are typical values and are not to be considered as specifications. Our suggestions for use are based on tests we believe to be reliable. However, the purchaser must carry out their own tests to determine the suitability of the product for their internal use. Information is given in good faith, but without warranty.
  • It is essential, as with all pressure-sensitive tapes, that the surface to which the tape is applied be clean, dry and free of grease and oil.
  • Shelf life from date of manufacture is based on the product being stored at 70°F(21°C) / 50% relative humidity out of direct sunlight.
  • Specification compliance is dynamic and should only be used as a general guide. Always confirm that the tape you are interested in currently complies with all specification requirements. Please verify that the product number that you select is available in the proper size and color to meet your specification.
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