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Automotive application guide

Joining, splicing and roll closure

Splicing covers operations where two materials must be joined, a roll closed, a reel spliced, a substrate held before conversion or production continuity maintained. In automotive and related industries, these uses may involve films, reels, silicone-coated liners, leather, textiles, thermoformable materials or technical substrates.

DERFI L0201, L0202V and L0204V silicone polyester tapes are suitable for splices requiring adhesion to silicone-coated material because their silicone adhesive bonds where conventional adhesives would not.

  • Splice rolls
  • Bond to silicone-coated surfaces
  • Create roll joins
  • Hold parts before sewing or conversion
  • Create clean splices on films or specific substrates
  • Facilitate production continuity
  • Prevent line stoppages caused by roll changes
  • Prepare materials before conversion
Joining, splicing and roll closure
Application example: roll splicing, roll closure or substrate holding before conversion.

Choose the tape according to the substrate to be spliced

The choice depends on the substrate: silicone-coated surface, thermoformable film, textile, leather, flexible substrate, technical reel or roll to be closed. The aim is to maintain a clean, stable splice compatible with the next conversion process.

Splicing silicone-coated paper rolls

Silicone-coated paper is used in many processes involving adhesives and double-sided tapes. Because silicone surfaces are difficult to bond, a silicone adhesive may be required.

This application makes it possible to splice two reels, secure the start of a liner, prepare a substrate before slitting or cutting and avoid machine stoppages during reel changes.

Splicing silicone-coated paper rolls
Risk to avoid Lifting on silicone surfaces, splice failure, machine stoppage, poorly held reel start or a splice incompatible with slitting and cutting.
Examples of use
  • Splice two silicone-coated paper rolls
  • Close a roll of silicone-coated liner
  • Secure a roll end before conversion
  • Splice a silicone-coated substrate on a production line
  • Prevent a machine stoppage during a roll change
  • Hold a substrate until the next unwinding
  • Create a clean join before slitting or cutting
  • Prepare a roll before storage or internal shipping

Suitable DERFI products

L0201 L0201 Red silicone polyester tape for splicing silicone-coated surfaces. L0202V L0202V Green silicone polyester tape for technical splicing and visual identification. L0204V L0204V 150 µm green polyester tape for thicker splicing and technical masking. DT001 DT001 Acrylic transfer tape for certain thin, non-silicone splices. K1144 K1144 Non-woven double-sided tape for light assemblies depending on the substrate.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Repeat cutting of identical lengths for reel splices. RT7700 RT7700 Fast dispensing of technical tapes on a conversion line or workstation. DSH DSH Application of double-sided tapes with automatic liner separation. DSH-TR DSH-TR Controlled application of transfer tapes with liner recovery.
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Roll closure and securing roll ends

When a reel is stored or moved, its end must be held cleanly to prevent unwinding, damage to the substrate or contamination of the first layer.

This operation can also identify the reel start, secure a roll before internal transport, hold a substrate before cutting or prepare a reel of technical material before storage.

Roll closure and securing roll ends
Risk to avoid Accidental unwinding, damaged reel start, contaminated substrate, poorly secured reel during transport or insufficient identification of the start of the roll.
Examples of use
  • Close a film roll before storage
  • Secure the end of a liner roll
  • Secure a roll before internal transport
  • Prevent accidental substrate unwinding
  • Visually identify a roll end using coloured tape
  • Secure a roll before cutting
  • Close a roll of technical material
  • Preserve substrate cleanliness before use

Suitable DERFI products

L0201 L0201 Red, visible and suitable for silicone-coated surfaces. L0202V L0202V Green, visible and suitable for technical splicing. L0204V L0204V Thicker polyester tape for robust roll closure. A0501M A0501M Natural-rubber kraft tape for splicing, packaging and preparation. E0505R E0505R Red thermoformable PVC tape for thermoformable-film splices.

Suitable DERFI machines

RT7700 RT7700 Fast dispensing for roll closure and reel starts. ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Preparation of repeat formats for series of reels. RT120W RT120W Dispensing wider tapes for wide substrates.
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Splicing thermoformable films

In some automotive-related industries, thermoformable films must be cleanly spliced before conversion. A suitable tape must follow the film's behaviour during heating.

The splice must remain visible, stable and strong enough to limit breaks in continuity during line passage, roll preparation or start-up of conversion.

Splicing thermoformable films
Risk to avoid Tape break, poorly visible splice, poor hold during conversion, poorly secured reel start or splice incompatible with the film's behaviour.
Examples of use
  • Splice two thermoformable film ends
  • Hold a film before feeding it onto the line
  • Create a visible join for operator inspection
  • Prepare a roll before conversion
  • Prevent breaks in web continuity
  • Close a film roll before storage
  • Secure the end of a technical film roll
  • Create a clean splice before thermoforming

Suitable DERFI products

E0505R E0505R Red thermoformable PVC tape for thermoformable-film splices. L0201 L0201 High-temperature splicing on specific surfaces. L0202V L0202V Visible technical splicing with silicone adhesive. L0204V L0204V Thicker splicing where greater strength is required.

Suitable DERFI machines

ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Consistent cutting of splices before conversion. RT7700 RT7700 Fast dispensing of splice strips at the workstation. RT120W RT120W Dispensing wide tapes for films and technical substrates.
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Joining leather, textiles or flexible materials before sewing

Some flexible materials used in interiors, seats, trims, coverings or accessories must be held before sewing or conversion.

Adhesive stabilises two layers, prepares a flexible part, limits shifting during handling and facilitates stitching, sewing, stapling or assembly operations.

Joining leather, textiles or flexible materials before sewing
Risk to avoid Misalignment between layers, poor positioning before sewing, material folds, insufficient hold during handling or splice too thick before conversion.
Examples of use
  • Hold two leather pieces before stitching
  • Prepare a technical textile before sewing
  • Position a flexible part before assembly
  • Hold trim before conversion
  • Prevent two layers from shifting during sewing
  • Prepare a textile panel before interior assembly
  • Hold foam or lining during handling
  • Facilitate an operation in leather goods or automotive trim

Suitable DERFI products

L0201 L0201 Red silicone polyester tape for leather joining and chemical resistance. K1144 K1144 Non-woven double-sided tape for light assemblies and flexible substrates. L1541R L1541R Double face repositionnable pour ajustement avant couture. E6641 E6641 Economical white PP double-sided tape for temporary fixing. DT001 DT001 Acrylic transfer tape for thin, clean and very flat bonding.

Suitable DERFI machines

DSH DSH Consistent application of double-sided tape with liner management. DSH-TR DSH-TR Controlled application of transfer tapes on flexible materials. ZCM1000 / ZCM2000 ZCM1000 / ZCM2000 Cutting repeat formats before sewing or conversion. RT7700 RT7700 Fast dispensing of strips in textile or trim workshops.
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Use case overview

Splicing, joining and roll-closure operations ensure production continuity, secure reels, join difficult substrates, close reel starts and prepare materials before conversion, sewing, slitting, cutting or thermoforming.

Key points for consumables

  • L0201 is suitable for silicone-coated surfaces, splicing, leather joins and high-temperature applications.
  • L0202V is suitable for visible technical splices thanks to its green backing.
  • L0204V offers a thicker solution for robust splicing and technical masking.
  • E0505R is suitable for thermoformable film splices and visible joins.
  • A0501M is suitable for joining, packaging and roll closure requirements.
  • K1144 and DT001 meet thin assembly or double-sided splicing requirements depending on the substrate.

Key points for workstation organisation

  • ZCM1000 / ZCM2000 allows repeated cutting of consistent formats.
  • RT7700 facilitates rapid dispensing of technical tapes.
  • DSH is suitable for double-sided tape applications with liner separation.
  • DSH-TR allows controlled application of transfer tapes.
  • RT120W is useful for wide substrates and wider films.