High-Temperature Polyester Tape Transparent 220 °C

Transparent polyester masking tape is the precision tool for masking tasks where "flying blind" is not an option. Thanks to the full transparency of the carrier material, you maintain complete control over the workpiece, making this tape the favorite for complex components.

With a temperature resistance of 220°C (428°F), it is designed for all common curing processes in powder coating and e-coating (KTL).

Advantages for Powder Coating

• Full Visibility of Markings: Layout lines, fits, or fine boreholes remain visible after masking. This allows for exact trimming and positioning directly on the component.
• Precise Overlapping: You can see exactly how much adhesive surface overlaps when applying multiple strips. This prevents gaps and ensures uniform edge formation.
• Perfect for Two-Coat Designs: When masking over already powdered surfaces, the tape can be aligned with millimeter precision to the existing color edge.
• Adhesion Control: Air bubbles or contaminants under the tape are recognized immediately. This prevents the tape from lifting in the oven and powder creeping under the masking.

Technical Specifications

• Carrier: High-tensile polyester film.
• Adhesive: Thermostable silicone adhesive (no smearing, no melting).
• Temperature: Continuous load up to 220°C.
• Thickness: 0.060 mm (60µ) for extremely flat powder edges.
• Removal: Leaves no residue; ideal to remove while the part is still hand-warm.

Comparison: Polyester vs. Standard Tapes

Unlike conventional masking tape (usually rubber-based adhesive), the silicone adhesive of this tape does not burn in the oven. While paper tapes often tear or cause "frayed" edges, the thin polyester film ensures a clean, sharp separation line without leaving adhesive residue on the metal.

Practical FAQ

Does it leave residues?
No, the adhesive is chemically formulated to separate cleanly from the workpiece even after 30-60 minutes at 200°C.

Does the tape stick to powder coatings?
Yes, the silicone adhesive also adheres to the smooth surface of already cured powder layers.

Can I use it for sandblasting?
It is suitable for light blasting (sweeping). For heavy blasting media, we recommend our mechanically stronger Glass Fiber Masking Tape.

Application Recommendation

Clean the surface with a silicone remover. Press the tape down firmly (especially at the edges). For best results, peel the tape off shortly after the oven cycle while the component still has residual heat.