★This handy set includes both primer and CA cement for use with parts molded in difficult-to-cement polypropylene (PP), polyethylene (PE), polyacetal (POM) and EVA. ★First, apply a thin coat of primer on the parts, allow it to dry, and then apply cement to one side of the joint. ★These finishing materials can also be used when cementing the named plastics to standard styrene parts, applying primer to the non-styrene part only. ★Primer: 3g, CA cement: 3g.