In industrial scenarios such as welding, spraying, powder coating, electronic assembly, and high-temperature masking that need to withstand severe temperature tests, ordinary tapes are often unable to cope with them. At this time, high-temperature washi tape has become an indispensable professional tool with its unique material composition and excellent heat resistance. It not only provides reliable bonding and protection but also ensures the accuracy and safety of the process.
Nalkos washi masking tape consists of a washi paper backing. It is suited for any type of paint application in furniture construction, work sites, and industrial contexts.
Excellent performance advantages of high-temperature washi tape
Why can high-temperature washi tape lead the field of high temperature? Its core advantages are:
Excellent high temperature resistance: Core advantage! It can withstand -20°C - 120°C for a long time or even higher temperatures in the short term (such as wave soldering and reflow soldering peak temperatures) without decomposition of the substrate and failure of the adhesive.
Excellent thermal stability and dimensional stability: No shrinkage, deformation, or curling at high temperatures, ensuring the precise boundaries of masking or fixing, and preventing the penetration of paint, solder or powder.
High strength and tear resistance: Japanese paper substrates provide excellent mechanical properties, can withstand certain stretching, friction and operating stress, are not easy to tear, and are easy to operate manually or by machine.
Good flexibility and fit: Can easily fit various complex shapes, curved surfaces and edges, providing tight sealing and protection.
Reliable bonding and clean peeling: High temperature resistant silicone adhesives remain sticky at high temperatures, and can usually be cleanly peeled off after cooling, leaving no residual adhesive or damaging the bonded surface (especially suitable for delicate surfaces).
Excellent chemical and solvent resistance: Resistant to a variety of industrial solvents, cleaning agents, flux, oil stains, etc., protecting the shielded area from contamination.
Electrical insulation: Has good electrical insulation properties in a dry state (not the main use, but can provide basic protection in electronic applications).
Environmental protection and processability: The substrate is natural and environmentally friendly, easy to die-cut, stamp, and print (such as marking scale lines), meeting the needs of automated production.
Core application areas of high-temperature washi tape
The application of high-temperature washi tape is widely present in industrial links that require heat-resistant protection and shielding:
Electronic manufacturing/PCB assembly: component shielding protection during wave soldering and reflow soldering (to prevent solder splashing or solder creeping), gold finger protection, selective soldering shielding, test point shielding
Surface treatment/painting: shielding protection in processes such as high-temperature powder spraying, baking varnish, electroplating, anodizing, etc. (protecting areas that do not require treatment)
Welding (metal processing): protect adjacent areas from splashing, sparks, and thermal deformation during welding (MIG/TIG/spot welding, etc.); temporary fixing fixtures
Heat sealing/packaging: guide/pressing belt of high-temperature heat sealing machine (such as bag making machine), high-temperature sealing protection, label positioning
Composite materials/lamination: edge protection, positioning and fixing, release layer isolation during high-temperature curing (such as prepreg, carbon fiber)
Automobile manufacturing/repair: high-temperature protection and fixing of engine compartment wiring harness, exhaust pipe repair shielding, high-temperature spray painting shielding, lamp assembly
Glass deep processing: edge protection during tempered glass and curved glass processing, high-temperature treatment shielding.
How to choose the right high-temperature washi tape?
Facing high-temperature washi tape of different specifications, it is very important to choose the right model. The following factors are mainly considered:
Maximum tolerance temperature and time: This is the primary factor! Clarify the continuous temperature and peak temperature, and exposure time during the process. Choose a tape with a temperature grade higher than the actual application requirements.
Substrate thickness and strength: Select according to application requirements (such as common thicknesses: 0.13mm, 0.18mm). Choose a thicker substrate when stronger tear resistance, puncture resistance, and burn-through resistance are required; a slightly thinner substrate can be selected when more delicate shielding or curved surface bonding is required.
Adhesive type and viscosity: Confirm that it is silicone adhesive. Choose low, medium or high viscosity grades as needed:
High viscosity: Strong fixing or rough surface (such as sandblasted metal) is required.
Medium viscosity: Most commonly used, balancing adhesion and clean peeling (such as electronic masking, general painting).
Low viscosity: Used for extremely sensitive surfaces (such as smooth plastics, polished metals, certain coatings) to ensure no residue.
Chemical resistance requirements: Consider the chemicals (solvents, cleaning agents, flux, oils, etc.) exposed in the process and choose a tape with corresponding resistance.
Peeling characteristics: Is it necessary to peel cleanly without residue after cooling? This is crucial for protecting delicate surfaces (such as PCBs, optical components, coatings).
Color and printing: The standard color is brown (natural color and paper). White or other colors are easy to identify against a dark background. Do you need to print scales and logos on the tape?
Size and form: Roll width and length; is it pre-cut into a specific shape (die-cut)?
