PMI #321 Block Out Tape 3" x 110yd
High-tack screen block out tape designed for masking screen frames, preventing ink leaks, and protecting mesh during screen printing production and reclaiming.
Characteristics
The PMI #321 Block Out Tape – 3" x 110 yd is a premium pressure-sensitive masking tape engineered specifically for screen printing applications. Designed to seal the inside edges of aluminum and wood frames, this durable tape helps prevent ink from leaking between the mesh and frame, producing cleaner prints while reducing cleanup time during production.
Manufactured with a strong polyethylene film backing and a high-tack adhesive, PMI #321 adheres securely to clean screen frames while remaining easy to remove after production. The moisture-resistant backing withstands repeated exposure to plastisol inks, water-based inks, solvents, reclaim chemicals, and washout procedures without tearing or breaking down during normal printing operations.
The 3-inch width provides generous coverage for sealing large frame edges, damaged mesh areas, registration marks, pinholes, and other non-image areas where unwanted ink flow must be blocked. Its flexible construction conforms easily to frame corners and irregular surfaces while maintaining a reliable seal throughout long production runs.
With 110 yards per roll, PMI #321 Block Out Tape delivers excellent value for high-volume screen printing shops, contract decorators, and industrial production facilities requiring dependable masking performance and clean screen preparation.
- Designed specifically for screen printing applications
- High-tack pressure-sensitive adhesive
- Durable polyethylene film backing
- Helps prevent ink leaks between mesh and frame
- Moisture- and chemical-resistant construction
- Conforms easily to frame edges and corners
- Removes cleanly after production
- Suitable for plastisol, water-based, UV, and specialty inks
- Excellent for covering pinholes and unwanted open mesh
- Long 110-yard roll reduces changeovers
- Professional-grade masking solution for production environments
- Apply tape to clean, dry frame surfaces for the strongest adhesion.
- Seal all inside frame edges before printing to help prevent ink seepage between the mesh and frame.
- Use additional pieces to cover pinholes, damaged mesh, or unwanted image areas during press setup.
- Remove the tape slowly after production to help minimize adhesive residue.
- Store rolls in a cool, dry location away from direct sunlight to preserve adhesive performance.
- Replace tape after reclaiming or extended production runs to maintain a reliable seal.
- Pair with quality blockout fluids when permanent screen masking is required for long-term stencil preparation.
