Tamiya -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.