Cambridge Polymer Labs ( quest ) Cambridge Polymer Labs is a side quest in " Fallout 4 " . The point is to find chemical samples in the abandoned Cambridge Polymer Labs and complete a 200 year old science experiment . Detailed walkthrough . Upon entering the Cambridge Polymer Labs , the Sole Survivor is greeted by a Miss Nanny robot named Molly . She asks if the Sole Survivor has come to fill a job position . Answer yes and Molly will give the player character a one question survey for qualification asking whether or not the player character has any research experience . She will assign a job and provide a uniform ( set of clothing and items ) based on the answer given : Molly will then ask if the Sole Survivor would like an orientation , which is optional . If they agree , she will move into a side room with a broken slide projector and relate the history of the company . The Sole Survivor is asked to change into suitable attire and Molly leads the player character through a changing area with sets of lockers , then the Survivor is told to proceed to the clean room . As soon as the Sole Survivor enters the clean room , Molly locks the door and informs the player character that Director Elwood has issued a mandatory overtime edict to the staff and that no one may leave the laboratory until the project has been completed . The room will then fill with high - level radiation , though Molly will decontaminate it shortly . The player character may then ask Molly questions , but her responses are generally that the player character should look at the research already done and see if it can be moved forward . Just past the clean room , the player will come to a room with a terminal directly in front and a large machine called the Polymer Coating Applicator filling the right side of the room . The terminal will have the research data of the experiment that ' s been performed up to this point . To complete the project , the Sole Survivor must supply the applicator with the reagents lithium hydride and gold in addition to the radioactive material , U - 238 . Sitting right on the applicator is a silver canister that contains unidentified sample 11317 , which when inserted into the applicator will identify it as hydrochloric acid . The Sole Survivor must explore the rest of the facility and find the components for the project . There is a door leading from the room with the applicator out into the main atrium , which is filled with feral ghouls . Roughly 8 - 10 ghouls will attack at once , but once they are dead , the Sole Survivor is free to explore with only occasional interference from stragglers . Entering the atrium there are two doors straight ahead . The storage room on the left contains unidentified sample 3111 ( lithium hydride ) . The adjacent door leads to another small lab containing unidentified sample 413 ( gallium ) . In this room is a hole in the wall leading into the next lab , which contains unidentified sample 65 ( tungsten ) , a window to view into the containment room , which contains the U - 238 , and a wall - mounted terminal that opens the containment room . Opening the room causes alarms to sound and a glowing one to rise out of the standing water in the containment room . The containment room can be accessed via the door on the ground floor at the bottom of the stairs , to the left of the door leading back to the applicator room . Up the stairs on the second level and turning around , there will be two doors at the end of walkways on either side . At the end of the left walkway is an office space in which the player character will find unidentified sample 49 ( cobalt ) sitting on a desk . Near this desk is a ramp leading into the ceiling ducts , which will grant access to the aforementioned right hand office , if one is unable to hack the Expert - level terminal at the door outside . Deal with the ghoul inhabitant , disable the tripwire and mines before they can go off , then look around the lab . This is Dr . Wilfred Bergman ' s lab and the final reagent , unknown sample 611 ( gold ) , can be found sitting on a desk next to a terminal . At this point , one has two options : Option 1 : Complete the experiment . With the two reagents in hand , leave the room and proceed to the opened containment room via the ground floor access . Defeat the glowing one , mindful of the radiation ( hazmat suits should be available elsewhere in the lab ) and collect the U - 238 from the opposite wall . Return to the applicator room and insert the components . Watch the polymer lining be applied to a piece of power armor , producing the Piezonucleic power armor , a unique Legendary power armor piece . Collect it on the far right and present it to Molly . With the project completed successfully , she will unlock the clean room , adding that the director will be impressed and will want to meet the Sole Survivor . Following her will lead to the director ' s office on the second floor of the main entrance area . Upon opening the door , the director , now a feral ghoul , tries to attack the Sole Survivor . Molly intervenes , re - informing the director of company policies about assaulting coworkers before killing him with her saw arm . If the Sole Survivor has already killed the director before this , Molly will apologize and refer to an office flu . At this point Molly pays the Sole Survivor for their efforts ( in pre - War money ) , apologizes on the director ' s behalf and shuts herself down for good , ending the quest . The piece of power armor remains available for the Sole Survivor to use as they see fit . Option 2 : Override the lockdown . Alternatively , activate the terminal in Dr . Bergman ' s lab and access the " Facility Defense System " directory . It provides the opportunity to use the emergency override , which will open the clean room and fulfill the optional objective of finding another way out of the facility , but it also activates all defenses in the facility including turrets and Molly , which means the player character will have to fight their way out of the facility . Gallery .