Sheldahl has applied an exact thickness of dry, thermosetting adhesive to the yarn surface of the tape. The expected results when using this tape are reduced splice thickness, increased joint consistency, reduced labor and decrease solvent usage.
|Paper Fine J & X Wt. Cloth/Poly||120 grit and finer||120 grit to 60 grit||80 grit and coarser||Abrasion resist flex tensile||60 grit and coarser||Non-Woven Abrasives|
|Tape Thickness||Tensile Strength||Application Notes|
|Part Number||Metric||English||Metric N/cm.||English lbs./in.|
|T1931||0.051 mm||0.002"||200 N/cm.||115 lbs./in.||ultra thin, replace lap, J-Weight|
|T1787||0.076 mm||0.003"||325 N/cm.||185 lbs./in.||thin, versatile, highest flex|
|T1789||0.114 mm||0.0045"||455 N/cm.||260 lbs./in.||most versatile, strength & flex|
|ST1641||0.163 mm||0.0064"||615 N/cm.||340 lbs./in.||high strength, high flex, uniform thickness|
|T9039||0.191 mm||0.0075"||650 N/cm.||365 lbs./in.||Best properties of blue and green.|
|ST1727||0.216 mm||0.0085"||650 N/cm.||380 lbs./in.||Strong abrasion and hinge resistant|
|T1877||0.140 mm||0.0055"||440 N/cm.||250 lbs./in.||Air tools, surface conditioning|
Standard Bias Angle: 55°, 67°, 75°
Standard Roll Widths: ¾” and 1”
Standard Roll Lengths: 76 meters (152 meters available)
NOTE: 1. Tape Storage and Shipment: Coated tapes are shipped in insulated cartons with dry ice. Rolls are individually packaged, with a desiccant, in a sealed plastic bag. To assure a shelf life of 90 days tape, must be stored -29°C (-20°F) or lower.
NOTE: 2. Please consult Customer Support for complete details about our products.
1. Cut belts to desired angle.
2. Abrade ends with wire brush, sandblast, etc.
3. Apply adhesive to both belt ends and the yarn side of the splicing tape.
|Resin:||Sheldahl A0455/A0651||100 parts by weight at 20% solids||100 volumes|
|Curing Agent:||Desmodur® RE or RFE||9-11 parts by weights||8 - 10 volumes|
|T1880, T1882, T1878||300-400 microns plus tape thickness|
|ST1884 and ST1886||550-650 microns plus tape thickness|
NOTE: Adhesive can be applied using a roller coater or brush and is compatible with spray equipment when diluted. Allow adhesive to dry at room temperature for 20-40 minutes or 4 to 6 minutes at 150°F
Place pre-tacked belt in bonding press with a release sheet/press pad configuration to prevent bonding to the heated bars. Suggested Press Cycle
|Temperature:||165°F to 185°F||75°C to 85°C|
|Pressure:||2000 to 3000 PSI||140 to 210 KG/sq. cm.|
|Time:||5-9 seconds||5-9 seconds|
Adhesive open time is dependent upon coating thickness, press temperature and room environment.
Sheldahl A455 or A651 and Desmodur® RE or RFE Desmodur® is a registered trademark of Bayer AG.
Product data is for information only and may vary dependent on individual products and processes. Sheldahl does not guarantee, or will it accept obligation or liability based on the use of this data. All data subject to change without notice.