3M's newly developed heat-resistant adhesive tape no. 42 is the first masking tape that generates a voltage potential of less than 50 volts when it is peeled off a circuit board. It therefore meets the specifications of EN 100015 (<100 volts).
Before the soldering process adhesive strips are applied to sensitive electronic components and gold contacts to protect them against damage during the soldering process itself. Afterwards the tapes are removed from the circuit board again. This often generates several hundred volts - a potential which is more than enough to destroy highly sensitive electronic components. These hazards have now been eliminated by the first commercially available heat-resistant antistatic adhesive tape no. 42.
The new masking tape can withstand temperatures of up to 260°C and is manufactured using a unique electrically conductive polymer adhesive to minimise static charges even at the moment of removal. Thus a charge of less than 50 volts is generated when it is removed from the roll and also when it is peeled off a circuit board under extreme conditions (RH 10%).
At a relative humidity of 50% the electrostatic potential is even reduced to less than 5 volts. Furthermore, the adhesive tape no. 42 leaves no residue when it is removed from the board. This ensures that work is always carried out cleanly and safely and that no subsequent cleaning of the board is necessary.
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