The protection of sensitive components on printed circuit boards by using planar transient protection material in one or more layers of a printed circuit board stackup is disclosed. The silphenylene compound of the present invention is useful as a flexible printed wiring board material, a passivation film for IC chips, and a panel material for liquid crystals. The first straight chain polyether surfactant has an HLB value that is a minimum of about 18. Therefore, provided herein are compositions, methods, and kits for targeted protein degradation.