Description
TensorGrip P321 is an aerosol contact adhesive for bonding polystyrene foam to itself and to other porous or difficult substrates. The formula is made for foam work where a standard contact adhesive may attack the surface. It sprays as a web pattern, dries quickly, and leaves a long open time so installers can coat, position, and mate larger parts with controlled pressure.
TensorGrip P321 use on foam and panels
The adhesive fits insulation, display, sign, packaging, fabrication, and general shop work involving polystyrene foam. It is intended for two-sided application, with adhesive applied to both mating surfaces before assembly. TensorGrip product guidance calls out bonding to polystyrene, fast tack, water resistance, high coverage, and moisture and weather resistance. The blue or clear adhesive options help teams match visibility needs during application.
TensorGrip P321 application details
Apply an even web spray to both surfaces and allow the adhesive to become dry to the touch before bonding. Published guidance for the product gives a dry time of about 2 to 4 minutes depending on temperature and humidity, with long open time for positioning. Parts should be mated with firm pressure across the full bond area. For related sprayable bonding choices, browse Chemical Concepts contact cement adhesives.
Key specifications
| Brand | TensorGrip |
| Product | P321 polystyrene foam contact adhesive |
| Format | Aerosol spray adhesive |
| Spray pattern | Web spray |
| Application | Two-sided contact bonding |
| Dry time | About 2 to 4 minutes, condition dependent |
| SKU | Q-P321AEROSOL |
Use this aerosol when foam compatibility, portable application, and broad coverage matter more than bead placement. Check substrate tests before production, especially when bonding coated faces or laminated materials. For manufacturer background on the aerosol contact adhesive line, visit Tensor Global.
Need Help?
Need help comparing P321 to canister contact adhesives or choosing a spray pattern? Call (800) 220-1966 or email [email protected].






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