Shielding Caulks and Adhesives

ISOTROPIC CONDUCTIVE AND ANISOTROPIC CONDUCTIVE ADHESIVES-CAULKS FOR FORM-IN-PLACE GASKET PRE-APPLIED EMI/RFI SHIELDING COVER/CAN/LID

AIT has been supplying EMI/RFI shielding adhesives, caulks, and specialty coatings for military applications for more than 30 years. The following are some of the typical products and applications. Please contact us for your specific applications.

Conductive silicone compressible adhesive (e.g. SR-8850-3) and dispensible is ideal for form-in-place EMI/RFI shielding gasket in cellular phone, PDA and other consumer electronic devices.

Conductive pressure sensitive Z-axis conductive adhesive pre-applied onto EMI/RFID shielding cover/can/lid is ideal for communication devices that cannot withstand multiple high temperature lead-free soldering.  

Conductive Adhesive & Form-In-Place Gasket     AIT Product Characteristics Electrical Resistivity Peel Strength Pot-life (min.) Curing Schedule (50%RH@ 25°C) SR 8850-2 (Silicone) Silver/copper filled; adhesive; over 120dB EMI/RFI shielding at 0.1cm bond-line; ideal for bonding gaskets. <5x10-3 ohm-cm 4.5 ppi 60 24 hr. SR 8850-3 (Silicone) Silver filled; adhesive; over 120dB EMI/RFI shielding at 0.1cm bond-line; ideal for bonding gaskets. Dispensible and ideal for form-in-place gasket. <5x10-4 ohm-cm 4.5 ppi 60 24 hr EG 8020 (Epoxy, Rigid) Conductive Ag-filled epoxy for bonding and sealing; over 40 Amp/sq mm current capability. 1x10-4 ohm-cm 10.0 ppi 240 24 hr.      Conductive Caulk-Sealant   AIT Product Characteristics Electrical Resistivity Peel Strength Pot-life (min.) Curing Schedule (50%RH @25° C) SR 8850-1 (Silicone) Metal powder filled; low density for large area coverage; extremely flexible for caulking use; over 120dB shielding. 5x10-3 ohm-cm 2.5 ppi 90 24 hr. PIS 9006 (Non-Silicone) Metal powder filled; low density for large area coverage; extremely flexible for caulking use; over 120dB shielding. 5x10-3 ohm-cm 2.5 ppi NA 24 hr.      Conductive Coating   AIT Product Characteristics Electrical Resistivity Peel Strength Pot-life (min.) Curing Schedule (50%RH @25° C) EG 8020 HC-MM (Rigid Epoxy) Most conductive Ag-filled epoxy coating; over 50A/sq. mm current capacity for lightning and EMP protection. < 9x10-5 ohm-cm 95 ppi 240 24 hr. EG8050-MM (Flexible Epoxy) Most conductive Ag-epoxy that is flexible as silicone and polyurethane; excellent adhesion to most substrates. < 5x10-4 ohm-cm 95 ppi 240 24 hr. SPC8513-1XCU (Bondable Copper Sheet) 24-inch copper rolls with conductive pressure sensitive that can be die-cut and applied onto plastic and large area enclosure as "sheet-coating " to provide more than 60dB shielding effectiveness. It conforms to most common curvatures without spray-coating problems. The exposed surface is insulating to prevent bridging with devices.   1 oz copper liner     >3.0 ppi      12 mos.   3/0.075