PRETREATMENT AGENT FOR ELECTROLESS PLATING, AND PRETREATMENT METHOD AND MANUFACTURING METHOD FOR PRINTED WIRING BOARD IN WHICH PRETREATMENT AGENT FOR ELECTROLESS PLATING IS USED

摘要

Provided is a novel pretreatment agent for electroless plating, not only having excellent adsorption of a catalyst used prior to electroless plating, but also having excellent anti-foaming properties whereby bubble formation is suppressed in a short time, and excellent permeability to a substrate. This pretreatment agent for electroless plating contains a silane coupling agent, a surfactant, an ethylene glycol butyl ether represented by the formula C4H9-(OC2H4)n-OH (n = an integer of 1-4), and/or a propylene glycol butyl ether represented by the formula C4H9-(OC3H6)n-OH (n = an integer of 1-4).