Stockwell's Top Picks for General Purpose Adhesives Item Name (PDF link) Adhesive Type Bond Strength (oz/in) Total Thick- ness Recommended Surfaces (Surface Energy > 40 Dynes/cm) 900 256M Acrylic (Supported) 70 .0045" Aluminum Copper Stainless Steel Polyimide Polyester Polyurethane ABS PVC 901 467 Acrylic (Transfer) 77 .002" 902 9485 Acrylic (Transfer) 150 .005" Specialty Pressure Sensitive Adhesives (PSAs) Item Name (PDF link) Adhesive Type Bond Strength (oz/in) Total Thick- ness Description 903 9490LE Acrylic (Low Surface Energy) 124/142 .0067" Low Surface Energy PSA - this supported adhesive is designed for tough to stick to surfaces such as polypropylene, PTFE and some powder coatings 904 6038PC Acrylic (Low Fog and High Strength) 210 .008" Low Fog and High Strength - this thick acrylic transfer adhesive offers strong bond to many surfaces including low surface energy plastics 905 9731 Acrylic / Silicone (Combination) 121/48 .0055" Combination PSA - commonly specified for bonding to silicone materials and molded gaskets (Ask about our proprietary bonding of acrylic adhesives to silicone materials) 906 9415 Acrylic (High / Low Tack) 50/5 .002" Repositionable PSA - the low tack is exposed when the release liner removed, allows for repositioning before mechanically fastening 907 9713 Acrylic (Electrically Cond) 55 .003" Electrically Conductive PSA - This XYZ conductive adhesive is excellent for use with EMI gasket materials 908 DP-1001 Silicone (High Temperature) 35/58 .005" Extreme Temperature PSA - this double coated adhesive is specified when acrylic adhesives won't meet temperature requirements ( -100°F to +500°F) 909 TR3 Acrylic (Thermally Cond) 30 .003" Thermally Conductive PSA - this transfer adhesive is specifically designed to aid in the transfer of heat (0.4 W/m-K) VHB (PSAs) for Backing Elastomeric Materials Item Name (PDF link) Adhesive Type Bond Strength (oz/in) Total Thick- ness Description 910 9473 VHB (Transfer) 144 .010" Premium adhesive is shear resistant. Low initial tack, high ultimate strength VHB (PSAs) to be Die Cut as Parts Item Name (PDF link) Adhesive Type Bond Strength (oz/in) Total Thick- ness Description 911 4926 VHB (Acrylic Foam) (4941 family) 192 .015" Acrylic adhesive on both sides of conformable foam. The adhesive provides excellent adhesion to a broad range of high and medium surface energy substrates. UL 746C 912 5925 VHB (Acrylic Foam) (5952 family) 272 .025" Acrylic adhesive on both sides of very conformable foam, providing adhesion to the broadest range of substrates, including most powder coated paints. UL 746C 913 4949 VHB (Acrylic Foam) (4950 family) 400 .045" General purpose adhesive on both sides of firm foam. This family is typically used on metal, glass and high surface energy plastic substrates. Other Stock Pressure Sensitive Adhesives (PSAs) Item Name (PDF link) Adhesive Type Bond Strength (oz/in) Total Thick- ness Description 914 254M Acrylic (Supported) 60 .003" Similar to 256M but thinner, with a heavier release liner to aid in kiss cutting of larger gaskets and pads. 915 468 Acrylic (Transfer) 118 .0052" Similar to 467 but thicker. Available in 54" wide rolls, matching the width of a Poron master roll. 916 9795 Acrylic (Supported) 78 .0056" The black polyester carrier gives this adhesive the appearance of being black. 917 9472 Acrylic (Transfer) 98 .005" 3M 300 series adhesive has high initial tack and may be suitable for some low surface energy surfaces. 918 5000M Rubber (Supported) 130 .0035" High tack high ultimate strength, long term aging and resistance to chemicals is not as good as acrylics. 919 RTV-60 Silicone (Conductive Caulk) - - Conductive Caulk (RTV) - this low conductivity (for ESD) RTV is typically used to bond Con-Pads™ their mounts. Adhesives Summary Sheets Adhesive Comparitive Chart Listing of Pressure Sensitive Adhesives PSA - Pressure Sensitive Adhesive, most commonly provided as a self-wound master log. Stockwell applies PSAs to most stock materials as needed. Gaskets and Pads with PSA backing are often called "peel and stick". Other common terms are; Pressure Sensitive Tapes, or double sided tapes. Supported or Double Coated Adhesive - This type of PSA is made by coating each side of a thin carrier commonly P.E.T. film with layer of adhesive. When applied to an elastomer, the carrier gives the gasket or pad dimensional stability in the X and Y directions. This is most useful when a gasket has bolt hole patterns. Transfer Adhesive - This type of PSA in manufactured by applying a thin coat of adhesive on to a release liner. Transfer adhesives have no film support - when applied to an elastomeric, the material and PSA are capable of stretching and bending. Acrylic PSA to Silicone Materials - Yes we can! Stockwell has several proprietary systems for bonding acrylic PSAs to our silicone materials for making silicone gaskets and silicone pads with peel and stick adhesive backings. Acrylics are also applied to PORON® and other opened and closed cell materials.

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