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Automotive application guide

High-temperature masking and selective technical masking

High-temperature masking and technical masking-off concern operations where certain areas of an automotive part must be protected before powder coating, oven cycles, welding, heat treatment, surface treatment or assembly of sensitive components.

This use case requires tapes capable of withstanding heat, solvents, chemicals or mechanical stresses while allowing clean removal after the process. DERFI silicone polyester, polyimide and glass-cloth tapes meet these needs depending on temperature, thinness, robustness or required insulation level.

  • Protect areas before powder coating
  • Mask contacts, inserts, threads or sensitive components
  • Withstand heating cycles or oven curing
  • Create clean outlines after treatment
  • Maintain good dimensional stability
  • Remove tape without residue depending on the substrate used
  • Create precise masked areas on metal, plastic or electronic parts
High-temperature masking and selective technical masking for automotive applications
Application example: selective technical masking before powder coating or heat treatment.

Choose the tape according to temperature, precision and substrate

Each operation involves a different constraint: oven resistance, clean removal after curing, thinness on electronic components, robust tooling protection or wire holding before impregnation.

Masking before powder coating automotive parts

Powder coating requires certain areas to be protected to prevent paint deposits on functional surfaces. The tape must withstand the process temperature, remain stable during oven curing and allow clean removal afterwards.

This application concerns fixing areas, contact surfaces, mating edges, screw areas, metal supports or technical parts requiring a clean boundary after powder coating.

Masking before powder coating automotive parts
Risk to avoid Paint deposited on a functional area, residue after curing, lifting in the oven, uneven boundary or loss of dimensional stability.
Examples of use
  • Mask a fixing area before powder coating
  • Protect a contact surface on a metal part
  • Preserve a screwing or assembly area
  • Prevent paint deposits on a technical area of the part
  • Protect an edge or mating area
  • Achieve a sharp boundary after powder coating
  • Mask a bearing surface on a metal support
  • Protect a clipping area before paint curing

Suitable DERFI products

L0201 L0201 Red silicone polyester tape for high-temperature masking-off and clean removal. L0202V L0202V Green silicone polyester tape for masking-off and visual identification. L0204V L0204V Polyester vert 150 µm pour masquage peinture poudre. B0201M B0201M 55 µm polyimide tape for precision high-temperature masking. B0201ML B0201ML 35 µm polyimide tape for thin areas and low build-up.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Prepares repeat lengths of high-temperature tape. RT7700 RT7700 Fast dispensing of technical strips at the painting workstation. RT120W RT120W Suitable for wide tapes or technical consumables. TDA080 / TDA150 TDA080 / TDA150 Automatic dispensers for industrial production rates.
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Masking threads, inserts and functional areas

On some automotive parts, areas must remain clean and uncoated after painting or treatment. This includes threads, metal inserts, screw areas, electrical contact areas or bearing surfaces.

Masking-off creates a clean, identifiable reserved area while preventing contamination of assembly, contact or fixing zones.

Masking threads, inserts and functional areas
Risk to avoid Contaminated threads, paint on a contact area, loss of conductivity, difficult assembly or unusable bearing surface after treatment.
Examples of use
  • Protect a threaded insert before powder coating
  • Mask a mechanical bearing area
  • Preserve an electrical contact surface
  • Prevent contamination of a fixing hole
  • Protect an assembly edge before heat treatment
  • Create a clean uncoated area on a metal or plastic part
  • Preserve a secondary bonding area
  • Protect an earthing or conductive contact area

Suitable DERFI products

L0201 L0201 Red, visible, suitable for high-temperature masking-off. L0202V L0202V Green, practical for technical masking-off and clean removal. L0204V L0204V Thicker, visible and suitable for powder-coating areas. B0201M B0201M Polyimide tape for fine masking-off on sensitive areas. B0201ML B0201ML Very low thickness for small areas and precise details.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Cutting short, repeat strips. RT7700 RT7700 Fast dispensing of technical tapes in the workshop. ZCM1100 / ZCM2200 ZCM1100 / ZCM2200 Safe cutting for sensitive workstations.
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Masking electronic components and printed circuits

Onboard electronic components, boards, sensors and printed circuits may require temporary protection during heat treatment, soldering or manufacturing operations.

Polyimide tapes are particularly suited to these uses thanks to their thinness, heat resistance and electrical insulation. They allow work on difficult-to-access areas with low build-up.

Masking electronic components and printed circuits
Risk to avoid Excessive build-up, poor contact protection, deposits on PCB, thermal degradation or difficult removal from a sensitive component.
Examples of use
  • Mask electronic board contacts before soldering
  • Protect a connector before heat treatment
  • Insulate a sensitive area on a printed circuit
  • Protect a sensor during a heating operation
  • Mask a small electronic area without significant added thickness
  • Maintain clean protection in a hard-to-reach area
  • Protect a track or pin during soldering
  • Create a fine masked area on an onboard component

Suitable DERFI products

B0201M B0201M 55 µm polyimide tape for PCBs, insulation and high-temperature masking. B0201ML B0201ML 35 µm polyimide tape for thin and conformable applications. B0204M B0204M 180 µm polyimide tape for increased protection and robustness. L0201 L0201 Silicone polyester tape for high-temperature masking where thinness is less critical. L0202V L0202V Green polyester tape for visual identification and technical masking-off.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Prepares precise strips to a consistent length. RT7700 RT7700 Fast dispensing of technical tapes. ZCM1100 / ZCM2200 ZCM1100 / ZCM2200 Safe cutting in electronics workshops or at sensitive workstations.
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Protection during wave soldering and electronic thermal operations

Some electronic assembly operations require areas to be protected before soldering or heat exposure. The tape must withstand heat, remain stable during the operation and remove cleanly.

This application concerns PCBs, tracks, connectors, pins, contact areas, miniature components or electronic areas that must not be exposed to deposits or splashes.

Protection during wave soldering and electronic thermal operations
Risk to avoid Deposits on electronic contacts, splashes on PCB, thermal lifting, insufficient insulation or tape too thick for a miniature area.
Examples of use
  • Protect contacts before wave soldering
  • Mask a PCB area outside the process zone
  • Temporarily insulate a track or component
  • Protect a connection during a thermal cycle
  • Prevent splashes or deposits on an electronic area
  • Keep a thin tape in place on a complex geometry
  • Protect a miniature connector during a heating operation
  • Preserve a contact area on an electronic board

Suitable DERFI products

B0201M B0201M Polyimide tape for wave soldering, PCBs and high-temperature insulation. B0201ML B0201ML Solution fine lorsque l’épaisseur doit rester minimale. B0204M B0204M Thicker polyimide tape for areas requiring greater robustness. C0201B C0201B Silicone glass-cloth tape for robust high-temperature protection. C0205B C0205B 200°C silicone glass-cloth tape for demanding uses.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Repeat cutting of thin strips. RT7700 RT7700 Fast dispensing at electronic workstations. RT120W RT120W Suitable for wider tapes or technical materials.
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Insulating and holding coils, motors and capacitors before heating

Electrotechnical components used in automotive applications, such as coils, motors, capacitors or transformers, may require insulation or holding before impregnation, soldering or heat treatment.

Polyimide and glass-cloth tapes can hold, insulate or reinforce areas exposed to heat, abrasion, tearing or mechanical stress.

Insulating and holding coils, motors and capacitors
Risk to avoid Wire movement, insufficient insulation, abrasion, puncture, tearing or insulation failure after heat treatment.
Examples of use
  • Hold wires on a former before impregnation
  • Bind coils before heat treatment
  • Insulate an electrical connection exposed to heat
  • Protect a coil or motor winding
  • Hold a wiring harness or electrical area in a hot environment
  • Reinforce an area exposed to abrasion, tearing or punctures
  • Insulate a winding on an automotive electric motor
  • Hold a wire or conductor before encapsulation

Suitable DERFI products

C0201B C0201B Silicone glass-cloth tape for high-temperature insulation and holding. C0205B C0205B 200°C silicone glass-cloth tape for demanding applications. B0201M B0201M Polyimide tape for thin electrical insulation and high temperatures. B0201ML B0201ML Polyimide ultra fin pour faible encombrement. B0204M B0204M Thicker polyimide tape for reinforced insulation.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Cutting repeat insulation strips. RT7700 RT7700 Dispensing technical tapes in the workshop. RT120W RT120W Suitable for wider tapes. ZCM1100 / ZCM2200 ZCM1100 / ZCM2200 Safe cutting at sensitive workstations.
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Protection of tools exposed to high temperatures

Tooling, production supports, rails, holding areas or handling elements may be exposed to heat, abrasion or mechanical stress.

Glass-cloth or silicone-elastomer tapes are useful where protection must be more robust than a simple polyester film, particularly on jigs, metal supports or areas exposed to harsh environments.

Protection of tools exposed to high temperatures
Risk to avoid Premature tooling wear, abrasion, thermal degradation, damaged contact surface or insufficient protection in a harsh environment.
Examples of use
  • Protect a tool exposed to a thermal cycle
  • Mask a support area during hot treatment
  • Protect a rail or holding part exposed to abrasion
  • Reinforce a bearing area in a harsh environment
  • Protect a surface during spraying or industrial treatment
  • Prevent premature deterioration of a production support
  • Protect a contact area on a hot template
  • Create robust temporary protection on a metal tool

Suitable DERFI products

C0622B C0622B Silicone-elastomer glass-cloth tape for harsh environments. C0205B C0205B 200°C silicone glass-cloth tape for demanding protection. C0201B C0201B UL510-certified high-temperature silicone glass-cloth tape. L0204V L0204V 150 µm silicone polyester tape for high-temperature masking. L0201 L0201 Red silicone polyester tape for masking-off and clean removal.

Suitable DERFI machines

RT120W RT120W Dispensing wider or technical tapes. RT7700 RT7700 Fast dispensing of strips at the workstation. ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Repeat cutting of technical formats. TDA080 / TDA150 TDA080 / TDA150 Automatic dispensers for repetitive production applications.
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Use case overview

High-temperature masking and technical masking-off cover operations where tape must protect an area during a thermal, chemical or industrial process: powder coating, oven cycles, wave soldering, surface treatment, electronic protection, coil insulation, wire holding or tooling protection.

Key points for consumables

  • L0201 is suitable for high-temperature masking, powder coating and clean removal.
  • L0202V is suitable for high-temperature selective masking with green visual identification.
  • L0204V is useful for powder coating masking requiring greater thickness.
  • B0201M and B0201ML are suitable for fine electronic masking and high-temperature insulation.
  • B0204M is suitable for more robust polyimide protection.
  • C0201B, C0205B and C0622B are suitable for demanding environments, insulation and tool protection.

Key points for workstation organisation

  • ZCM1000 / ZCM2000 prepares consistent high-temperature strips.
  • ZCM1100 / ZCM2200 provides safe cutting at sensitive workstations.
  • RT7700 speeds up technical tape dispensing in the workshop.
  • RT120W is suitable for wide tapes and technical substrates.
  • TDA080 / TDA150 is suitable for repetitive applications at industrial output rates.