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DFARS Specialty Metals
Masking Tape Shapes for Powder Coating
Cover holes, fastener heads, and small areas with these shapes. Made of polyester plastic, they resist tearing and breaking in high-temperature masking jobs, such as on circuit boards and when powder coating. They remove without leaving residue.
Discs
Disc
| Dia. | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Sheet | ||||||||
|---|---|---|---|---|---|---|---|---|
| 3/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 000000 |
| 5/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
| 7/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
| 9/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
| 1 1/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 00000000 | 00000 |
| 1 3/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 00000000 | 00000 |
| 1 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 00000000 | 00000 |
| 1 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 00000000 | 00000 |
| 1 3/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 25 | 00000000 | 00000 |
| 1 7/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 25 | 00000000 | 00000 |
Spool | ||||||||
| 3/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 2,000 | 00000000 | 00000 |
| 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 5/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 2,000 | 00000000 | 00000 |
| 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 7/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 2,000 | 00000000 | 00000 |
| 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 9/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 2,000 | 00000000 | 00000 |
| 5/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 3/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 7/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 0000000 | 00000 |
| 1" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 0000000 | 00000 |
| 1 1/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 3/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 0000000 | 00000 |
| 1 5/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 3/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 00000000 | 00000 |
| 2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 0000000 | 00000 |
| 3" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 50 | 0000000 | 00000 |
| 4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 25 | 0000000 | 00000 |
| 5" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 25 | 0000000 | 00000 |
| 6" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 25 | 0000000 | 00000 |
Discs with Pull Tabs
Disc with Pull Tab
| Dia. | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Spool | ||||||||
|---|---|---|---|---|---|---|---|---|
| 0.394" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 000000 |
| 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 5/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 3/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 7/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 250 | 00000000 | 00000 |
| 2 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
| 2 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
| 2 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 00000 |
Rings
Ring
| Dia. | ID | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Color | Pkg. Qty. | Pkg. | |
Spool | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 7/16" | 1/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 1,000 | 00000000 | 000000 |
| 1/2" | 3/16" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 1,000 | 00000000 | 00000 |
| 1/2" | 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 1,000 | 00000000 | 00000 |
| 5/8" | 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 1,000 | 00000000 | 00000 |
| 3/4" | 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 1,000 | 00000000 | 00000 |
| 1" | 1/4" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1" | 13/32" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/2" | 3/8" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 1 1/2" | 1" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 2 1/8" | 1" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 500 | 00000000 | 00000 |
| 7" | 1 1/2" | 0.0035" | Polyester Plastic | Silicone | -40° to 400° | Green | 100 | 00000000 | 000000 |
Masking Tape Shapes for Stripping and Plating
No Spool
Spool
Cover small spots and holes while paint stripping and electroplating, or use as a moisture and dust barrier. These aluminum foil discs are flexible and conform to irregular shapes.
Small Pack
| Dia. | Overall Thick. | Material | Adhesive Type | Temp. Range, °F | Color | Pkg. Qty. | Pkg. | |
| 1/4" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 100 | 00000000 | 000000 |
| 1/2" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 100 | 00000000 | 00000 |
| 3/4" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 50 | 00000000 | 00000 |
| 1" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 50 | 00000000 | 00000 |
| 2" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 24 | 00000000 | 00000 |
| 3" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 24 | 00000000 | 00000 |
Large Pack
| Dia. | Overall Thick. | Material | Adhesive Type | Temp. Range, °F | Color | Pkg. Qty. | Spool Material | Pkg. | |
| 1/8" | 0.0045" | Aluminum | Acrylic | -30° to 300° | Silver | 2,000 | Plastic | 00000000 | 000000 |
| 1/4" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 1,000 | Cardboard | 00000000 | 00000 |
| 3/8" | 0.0045" | Aluminum | Acrylic | -30° to 300° | Silver | 2,000 | Plastic | 00000000 | 00000 |
| 1/2" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 1,000 | Cardboard | 00000000 | 00000 |
| 5/8" | 0.0045" | Aluminum | Acrylic | -30° to 300° | Silver | 2,000 | Plastic | 00000000 | 00000 |
| 3/4" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 500 | Cardboard | 00000000 | 00000 |
| 7/8" | 0.0045" | Aluminum | Acrylic | -30° to 300° | Silver | 500 | Plastic | 00000000 | 00000 |
| 1" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 250 | Cardboard | 00000000 | 00000 |
| 2" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 250 | Cardboard | 00000000 | 00000 |
| 3" | 0.0045" | Aluminum | Acrylic | -30° to 325° | Silver | 250 | Cardboard | 00000000 | 000000 |
Masking Tape Shapes for Electronics
Use these convenient cut shapes to mask holes, fastener heads, and small areas while soldering. This polyimide tape dissipates heat and is an excellent electrical insulator.
Discs
No Spool
Cardboard Spool
| Dia. | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Spool Material | Voltage Rating | Specifications Met | Color | Pkg. Qty. | Pkg. | |
| 1/4" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | __ | 6,500V | MIL-P-46112, UL 510 | Amber | 100 | 00000000 | 000000 |
| 1/4" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 1,000 | 00000000 | 00000 |
| 3/8" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | __ | 6,500V | MIL-P-46112, UL 510 | Amber | 100 | 00000000 | 00000 |
| 3/8" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 1,000 | 00000000 | 00000 |
| 1/2" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | __ | 6,500V | MIL-P-46112, UL 510 | Amber | 100 | 00000000 | 00000 |
| 1/2" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 1,000 | 00000000 | 00000 |
| 3/4" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | __ | 6,500V | MIL-P-46112, UL 510 | Amber | 50 | 00000000 | 00000 |
| 3/4" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 500 | 00000000 | 00000 |
| 1" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | __ | 6,500V | MIL-P-46112, UL 510 | Amber | 50 | 00000000 | 00000 |
| 1" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 250 | 00000000 | 00000 |
| 1 1/2" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 250 | 000000000 | 00000 |
| 2" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 250 | 000000000 | 00000 |
| 4" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 100 | 000000000 | 00000 |
| 5" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | Cardboard | 6,500V | MIL-P-46112, UL 510 | Amber | 100 | 000000000 | 000000 |
Rings
No Spool
| OD | ID | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Voltage Rating | Specifications Met | Color | Pkg. Qty. | Pkg. | |
| 1/2" | 5/32" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | 8,000V | UL 510 | Amber | 45 | 00000000 | 000000 |
| 1" | 13/32" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | 8,000V | UL 510 | Amber | 25 | 00000000 | 00000 |
| 1 3/4" | 7/8" | 0.0025" | Kapton® Polyimide Plastic | Silicone | -100° to 500° | 8,000V | UL 510 | Amber | 17 | 00000000 | 00000 |
Masking Tape Shapes
No Spool
Cardboard Spool
Use these crepe paper discs to mask areas while spray painting, as well as to temporarily cover holes for dust protection.
| Dia. | Overall Thick. | Material | Adhesive Type | Temperature Range, °F | Color | Spool Material | Pkg. Qty. | Pkg. | |
Small Pack | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/8" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 00000 |
| 1/4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 0000 |
| 3/8" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 0000 |
| 1/2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 0000 |
| 3/4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 0000 |
| 1" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | __ | 100 | 00000000 | 0000 |
| 1 1/2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 75 | 00000000 | 00000 |
| 2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 75 | 00000000 | 00000 |
| 3" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 50 | 00000000 | 00000 |
| 4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 50 | 00000000 | 00000 |
| 5" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 25 | 00000000 | 0000 |
Large Pack | |||||||||
| 1/8" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 2,500 | 00000000 | 00000 |
| 1/4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 2,500 | 00000000 | 00000 |
| 3/8" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 2,500 | 00000000 | 00000 |
| 1/2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 2,500 | 00000000 | 00000 |
| 3/4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 2,000 | 00000000 | 00000 |
| 1" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 1,000 | 00000000 | 00000 |
| 1 1/2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 1,000 | 00000000 | 00000 |
| 2" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 250 | 00000000 | 00000 |
| 3" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 250 | 00000000 | 00000 |
| 4" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 125 | 00000000 | 00000 |
| 5" | 0.0067" | Crepe Paper | Rubber | 50° to 90° | Off-White | Cardboard | 125 | 00000000 | 00000 |
Very-High-Bond (VHB) Foam Mounting Tape Shapes
Create strong, permanent bonds that can replace mechanical fasteners with this tape that's been cut into convenient shapes. The closed-cell foam restricts absorption.
Discs
Disc
| Dia. | Overall Thick. | Adhesive Location | Adhesive Type | Temperature Range, °F | Cell Type | Tensile Strength, psi | Adhesion to Steel, oz./in. wd. | Specifications Met | Color | Pkg. Qty. | Pkg. | |
3M VHB 4945 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.045" | Both Sides | Acrylic | -30° to 200° | Closed | 140 | 400 | UL 746C | White | 5 | 000000 | 000000 |
| 3/4" | 0.045" | Both Sides | Acrylic | -30° to 200° | Closed | 140 | 400 | UL 746C | White | 5 | 00000000 | 00000 |
| 1" | 0.045" | Both Sides | Acrylic | -30° to 200° | Closed | 140 | 400 | UL 746C | White | 5 | 00000000 | 00000 |
| 1 1/2" | 0.045" | Both Sides | Acrylic | -30° to 200° | Closed | 140 | 400 | UL 746C | White | 5 | 00000000 | 00000 |
| 2" | 0.045" | Both Sides | Acrylic | -30° to 200° | Closed | 140 | 400 | UL 746C | White | 5 | 00000000 | 00000 |
Optically Clear Very-High-Bond (VHB) Foam Mounting Tape Shapes
Use these clear shapes for strong, invisible bonds that can replace mechanical fasteners. The closed-cell foam restricts absorption.
| Dia. | Overall Thick. | Adhesive Location | Adhesive Type | Temperature Range, °F | Cell Type | Tensile Strength, psi | Adhesion to Steel, oz./in. wd. | Color | Specifications Met | Pkg. Qty. | Pkg. | |
3M VHB 4905 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1/2" | 0.02" | Both Sides | Acrylic | -30° to 200° | Closed | 100 | 190 | Clear | UL 746C | 5 | 0000000 | 000000 |
| 3/4" | 0.02" | Both Sides | Acrylic | -30° to 200° | Closed | 100 | 190 | Clear | UL 746C | 5 | 0000000 | 00000 |
| 1" | 0.02" | Both Sides | Acrylic | -30° to 200° | Closed | 100 | 190 | Clear | UL 746C | 5 | 0000000 | 00000 |
| 1 1/2" | 0.02" | Both Sides | Acrylic | -30° to 200° | Closed | 100 | 190 | Clear | UL 746C | 5 | 0000000 | 00000 |
| 2" | 0.02" | Both Sides | Acrylic | -30° to 200° | Closed | 100 | 190 | Clear | UL 746C | 5 | 0000000 | 00000 |
Foam Mounting Tape Shapes
Use these convenient discs and rectangles to mount panels, signs, and dispensers. This foam tape with adhesive on both sides absorbs shock and provides high-strength holding power on rigid surfaces. Closed-cell foam restricts absorption.
Discs
| Dia. | Overall Thick. | Material | Adhesive Location | Adhesive Type | Temperature Range, °F | Cell Type | Tensile Strength, psi | Adhesion to Steel | Color | Pkg. Qty. | Pkg. | |
| 1/2" | 0.063" | Polyurethane Foam | Both Sides | Acrylic | -40° to 200° | Closed | 40 | Not Rated | White | 25 | 00000000 | 00000 |
| 3/4" | 0.063" | Polyurethane Foam | Both Sides | Acrylic | -40° to 200° | Closed | 40 | Not Rated | White | 27 | 00000000 | 0000 |
| 1" | 0.063" | Polyurethane Foam | Both Sides | Acrylic | -40° to 200° | Closed | 40 | Not Rated | White | 25 | 00000000 | 0000 |
| 1 1/2" | 0.063" | Polyurethane Foam | Both Sides | Acrylic | -40° to 200° | Closed | 40 | Not Rated | White | 25 | 00000000 | 0000 |
| 2" | 0.063" | Polyurethane Foam | Both Sides | Acrylic | -40° to 200° | Closed | 40 | Not Rated | White | 25 | 00000000 | 00000 |
Light Duty Foam Mounting Tape Shapes
Mount signs and trim with this economical polyethylene tape that's been cut into convenient discs and rectangles. It's thick and conformable for cushioning and vibration damping, and the closed-cell foam restricts absorption.
Discs
| Dia. | Overall Thick. | Material | Adhesive Location | Adhesive Type | Temperature Range, °F | Cell Type | Tensile Strength, psi | Adhesion to Steel | Color | Pkg. Qty. | Pkg. | |
| 3/4" | 0.063" | Polyethylene Foam | Both Sides | Rubber | 0° to 140° | Closed | 40 | Not Rated | White | 100 | 00000000 | 00000 |
| 1" | 0.063" | Polyethylene Foam | Both Sides | Rubber | 0° to 140° | Closed | 40 | Not Rated | White | 100 | 00000000 | 00000 |
Low-Friction UHMW Tape Shapes
Protect small parts with these slippery UHMW discs, rings, and rectangles, or use them between parts to minimize squeaks and rattles. UHMW provides a nonstick, low-friction surface with excellent abrasion and impact resistance.
Low-Friction Tape Shapes Made with Teflon® PTFE
Use these shapes to create a slick spot on small surfaces.
