2228 25MM

Scotch® Rubber Mastic Tape 2228 Data Sheet March 2020 Product Description Scotch® Rubber Mastic Tape 2228 is a conformable self–fusing rubber electrical insulating and sealing tape. Scotch® Rubber Mastic Tape 2228 consists of an ethylene propylene rubber (EPR) backing coated with an aggressive, temperature–stable mastic adhesive. The tape is made 65 mils (1,65 mm) thick for quick application build–up. It is designed for electrical insulating and moisture sealing applications. Scotch® Rubber Mastic Tape 2228 is a UL recognized component for applications up to 130⁰C. It offers excellent resistance to moisture and ultraviolet exposure and is intended for both indoor and weather exposed outdoor applications. Agency Approvals & Self Certifications UL recognized component listing not to exceed 130°C (266°F), Product Category OANZ2, and 3M File No. E17385 For RoHS information, please visit www.3M.com/ROHS Product Features • • • • • • Applications • Primary electrical insulation for cable and wire connections rated up to 1000 volts. • Electrical insulation and vibration padding for motor leads rated up to 1000 volts. • Primary electrical insulation for bus bar connections rated up to 35kV (3M drawing 2047B–106) • Padding for irregular shaped bus bar bolted connections. • Moisture seal for cable and wire connections. • Moisture seal for service drops. • Moisture seal for ground wire and rod connections • Jacket seal on power cable applications Conformable for application over irregular surfaces. Compatible with solid dielectric cable insulations. Self–fusing tape. Flexible over wide temperature range. Excellent weather and moisture resistance. Excellent adhesion and sealing characteristics with copper, aluminum and power cable jacket materials. • Thick construction allows quick application build–up and padding over irregular connections. 1 of 3 Scotch® Rubber Mastic Tape 2228 Installation Typical Properties Scotch® Rubber Mastic Tape 2228 should be applied in half–lapped layers until desired insulation build up is reached. Stretch the tape to 3/4 of its original width during application for good conformability and to obtain a moisture tight seal. Scotch® Rubber Mastic Tape 2228 should be overwrapped for mechanical protection with two half–lapped layers of Scotch® Super 33+™ Vinyl Electrical Tape. Properties Typical Value Temperature Rating 6 Color Thickness 1 Fusion 4 Tensile Strength 1 Elongation 1 Dielectric Breakdown 1 (Wet or Dry) Dielectric Constant 1 Dissipation Factor 1 Water Absorption 3 266ºF (130ºC) Black 65 mil (1,65mm) Steel 15.0lb/in (26,2N/10mm) PE 10.0lb/in (17,5N/10mm) Pass (Type I) 150psi (1,03N/mm2) 1000% 500V/mil (19,7kV/mm) 3.5 1.0% 0.15% Water Vapor Transmission Rate 2 0.1g/100in2/24hr Ozone Resistance Pass Adhesion 5 Heat Resistance UV Resistance 2 Pass, 130ºC 4 Pass 4 Note: These are typical values and should not be used for specification purposes. * Foot notes: 1. ASTM-D-4325 Test method 2. ASTM-D-3833 Test method 3. ASTM-570 Test method 4. ASTM-D-4388 Test method 5. ASTM-D-1000 Test method 6. UL recognized component, Product Category OANZ2, and 3M File No. E17385 3M Water Seal Test Samples were constructed using Scotch® Rubber Mastic Tape 2228 as a seal between PVC cable jackets and connecting ground wires (3M™ Cable Grounding Kit 2252). The specimens were thermal cycled in water baths at 25ºC and 90ºC. The total test time of 336 hours revealed no significant change in insulation resistance. The results meet requirements listed in UL 486D Standard for Insulated Wire Connectors for Use With Underground Connectors for insulation resistance (6.0 megohms, section 7.1) and dielectric voltage withstand (2.2kV, 1 minute, section 8.1). 2 of 3 Scotch® Rubber Mastic Tape 2228 Specification The tape shall be 65 mils (1,65 mm) thick. The tape must be ethylene propylene rubber based and coated with a rubber mastic pressure-sensitive adhesive. The tape shall be a UL recognized component for applications up to 130⁰C. The tape must be applicable at temperatures of 0ºC to 38ºC without loss of physical properties. The tape must be classified for use in both indoor and weather–exposed outdoor environments. The tape must not split or crack when exposed to normal operating temperatures and environments. The tape must be compatible with synthetic cable and wire insulations. The tape shall not be corrosive to aluminum or copper conductors. Shelf-Life Scotch® Rubber Mastic Tape 2228 has a five-year shelf life (from date of manufacture) when stored in a humidity-controlled storage (10ºC/50ºF to 27ºC/80ºF and < 75% relative humidity). Good stock rotation is recommended. Availability Scotch® Rubber Mastic Tape 2228 is available from your local 3M authorized distributor. 3M, Scotch and Super 33+ are trademarks of 3M Company. Important Notice All statements, technical information, and recommendations related to 3M’s products are based on information believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must evaluate it and determine if it is suitable for your intended application. You assume all risks and liability associated with such use. Any statements related to the product, which are not contained in 3M’s current publications, or any contrary statements contained on your purchase order, shall have no force or effect unless expressly agreed upon, in writing, by an authorized officer of 3M. Warranty; Limited Remedy; Limited Liability This product will be free from defects in material and manufacture at the time of purchase. 3M MAKES NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. If this product is defective within the warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product or refund the purchase price of the 3M product. Except where prohibited by law, 3M will not be liable for any direct, indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of the legal theory asserted. Electrical Markets Division Austin, TX Phone: 800-245-3573 www.3M.com/electrical Please Recycle. Printed in USA. © 3M 2020. All Rights Reserved. 78-9237-0114-4 Rev C 3 of 3