Cambridge Polymer Labs (quest)

 is a quest in Fallout 4.

Quick walkthrough

 * 1) Complete the research project
 * 2) (Optional) Find another way to escape the laboratory

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 a one question survey for qualification asking whether or not the player has any research experience. Simply saying yes will give the player the position of Researcher. There is a speech challenge on the response "You need me" and if the player succeeds, will be given the position of Sales Coordinator and a Dirty tan suit to wear. Failing the speech challenge nets the position of Lab Assistant.

Molly will then ask if the Sole Survivor would like an orientation before beginning work. If the player agrees, she will move into a side room with a slide projector that doesn't quite function and relate the history of the company. Once the orientation is complete, the Sole Survivor is asked to change into suitable attire and Molly leads the player through a changing area with sets of lockers. Molly then welcomes the Sole Survivor to the team and mentions that the rest of the research staff will be found in the facility just beyond the Clean Room.

As soon as the Sole Survivor enters the Clean Room, Molly locks the door and informs the player 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 may then ask Molly questions, but her responses are generally that the player 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 that's been performed up to this point. The player will learn about the Piezonucleic Polymer process to coat Power armor so that the armor can utilize radiation for a different capacity. 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. At this stage, the Sole Survivor does not have any of the components needed to finish the project, so the rest of the facility must be explored.

There is a door leading from the room with the Applicator out onto the ground floor of the rest of the research facility which is filled with Feral ghouls. It is a relatively small facility so it's likely the ghouls will all awaken at once (there are 8-10 total) when combat is initiated. Once the ghouls are dead, the Sole Survivor is free to explore, however an occasional ghoul might crawl from a hiding spot.

Looking into the facility from the door of the Applicator room there will be 2 doors on the opposite wall, a staircase on the right leading up to the second level, and another door to the right at the bottom of the stairs. Start with the left hand door on the opposite wall and find on a table in that room Unidentified Sample 3111 (Lithium Hydride). The right hand door leads to another small lab containing Unidentified Sample 413 (Gallium). Leading from this room is another door into another small lab, this one contains Unidentified Sample 65 (Tungsten) and a wall-mounted Terminal that opens the Containment Room which contains the sample of U-238. The player can see into the Containment Room through the windows just behind the wall terminal and opening the room causes alarms to sound and a Glowing one will boil up 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 and to the left of the one that leads to the Applicator room.

Be warned that the radiation levels in the Containment room are very high so be sure to prepare with Rad-X, RadAway or even the Hazmat suit found in one of the labs. The sample of U-238 is directly ahead from the door that leads into the Containment Room. It is a lone Test tube rack sitting on a shelf just opposite the doorway.

Up the stairs on the second level, there will be explorable areas on the left and right. At the top of the stairs, facing into the central chamber, there will be thin walkways extending out on both the right and left. On the right the walkway will be damaged and the player must jump to reach a platform with a locked door and a wall mounted Expert level terminal that will unlock it. At the end of the left walkway is an open room in which the player will find Unidentified Sample 49 (Cobalt) sitting on a desk. Near this desk is a ramp leading into the ceiling ducts. Following the ducts around and dropping through the hole at the end will allow access into the aforementioned Expert Locked room for players who cannot open the door via the wall-mounted terminal.

This is Dr. Wil Bergman's Lab and the final reagent, Unknown Sample 611 (Gold), can be found sitting on a desk next to a Terminal. The terminal will have several options on it, but the most crucial is "Facility Defense System". If that is selected, the player is given the opportunity to use the emergency override due to a facility breach. This will fulfill the optional objective of finding another way out of the facility but activates all defenses in the facility including turrets and Molly, which means the player will have to fight their way out of the facility.

Alternatively, the player can choose not to override the defense system and complete the research project using the final reagent sample just acquired from Bergman's lab. Make note that the Terminal-locked door has a Tesla trap just above it, so be sure to disarm the trap before leaving Bergman's lab as this door is the only way to exit the room. Return to the Applicator Room with all of the collected components.

The Polymer Coating Applicator has two receptacles to the left of its terminal screen for the reagents and one receptacle on the right for the radioactive material. Place Unknown Sample 3111 (Lithium Hydride) into the left reagent receptacle and Unknown Sample 611 (Gold) into the right reagent receptacle, be sure to note that they must be in these exact positions or the process will not initiate. Then place the U-238 into the receptacle for the radioactive material. Access the Applicator's terminal and select to start the process. If the components were placed correctly, the Applicator will begin processing and produce the Piezonucleic power armor chest piece, a unique Legendary power armor piece.

Once the process is complete, the Sole Survivor can go inform Molly that the project is a success. She will then unlock the Clean Room, but adds 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 co-workers before killing him with her saw arm. Once he is dead, Molly apologizes to the Sole Survivor on The Director's behalf and shuts herself down for good, ending the quest.

Be sure to loot The Director's office and use his terminal before leaving the building.

Experiment Samples Numbers & Names

 * The Sole Survivor gets a special Piezonucleic power armor chest piece when combining U-238 with (Sample 611 Gold) and (Sample 3111 Lithium Hydride).
 * 11317 Hydrochloric Acid
 * 3111 Lithium Hydride
 * 413 Gallium
 * 49 Cobalt
 * 611 Gold
 * 65 Tungsten


 * Making the Piezonucleic power armor chest piece will complete the experiment and allow you to leave the lab without a fight and with a caps reward.