diff --git a/code/__defines/materials.dm b/code/__defines/materials.dm
index 2f09f19fe4..5f11c5b4b3 100644
--- a/code/__defines/materials.dm
+++ b/code/__defines/materials.dm
@@ -103,6 +103,7 @@
 #define MATERIAL_UNMELTABLE 0x1
 #define MATERIAL_BRITTLE    0x2
 #define MATERIAL_PADDING    0x4
+#define MATERIAL_NO_SYNTH	0x8
 
 #define TABLE_BRITTLE_MATERIAL_MULTIPLIER 4 // Amount table damage is multiplied by if it is made of a brittle material (e.g. glass)
 
diff --git a/code/game/machinery/partslathe_vr.dm b/code/game/machinery/partslathe_vr.dm
index 06184c1978..b81fc31184 100644
--- a/code/game/machinery/partslathe_vr.dm
+++ b/code/game/machinery/partslathe_vr.dm
@@ -123,7 +123,7 @@
 	if(!istype(S))
 		return 0
 	if(!(S.material.name in materials))
-		to_chat(user, span_warning("The [src] doesn't accept [S.material]!"))
+		to_chat(user, span_warning("The [src] doesn't accept [material_display_name(S.material)]!"))
 		return 1
 	if(S.get_amount() < 1)
 		return 1 // Does this even happen? Sanity check I guess.
diff --git a/code/game/mecha/mech_fabricator.dm b/code/game/mecha/mech_fabricator.dm
index 9adf769226..48a224af5e 100644
--- a/code/game/mecha/mech_fabricator.dm
+++ b/code/game/mecha/mech_fabricator.dm
@@ -51,7 +51,9 @@
 		MAT_VERDANTIUM = 0,
 		MAT_MORPHIUM = 0,
 		MAT_METALHYDROGEN = 0,
-		MAT_SUPERMATTER = 0)
+		MAT_SUPERMATTER = 0,
+		MAT_TITANIUM = 0)
+
 	var/res_max_amount = 200000
 
 	var/datum/research/files
@@ -87,13 +89,6 @@
 /obj/machinery/mecha_part_fabricator/Initialize(mapload)
 	. = ..()
 
-// Go through all materials, and add them to the possible storage, but hide them unless we contain them.
-	for(var/Name in name_to_material)
-		if(Name in materials)
-			continue
-
-		materials[Name] = 0
-
 	default_apply_parts()
 	files = new /datum/research(src) //Setup the research data holder.
 
@@ -643,7 +638,7 @@
 	if(istype(I,/obj/item/stack/material))
 		var/obj/item/stack/material/S = I
 		if(!(S.material.name in materials))
-			to_chat(user, span_warning("The [src] doesn't accept [S.material]!"))
+			to_chat(user, span_warning("The [src] doesn't accept [material_display_name(S.material)]!"))
 			return
 
 		var/sname = "[S.name]"
diff --git a/code/game/objects/items/weapons/RMS.dm b/code/game/objects/items/weapons/RMS.dm
index d162a3e5e2..d2791fd992 100644
--- a/code/game/objects/items/weapons/RMS.dm
+++ b/code/game/objects/items/weapons/RMS.dm
@@ -191,11 +191,15 @@ var/list/RMS_random_malfunction = list(/obj/item/fbp_backup_cell,
 		/obj/item/stack/material/morphium
 		// Include if you enable in the .dme /obj/item/stack/material/debug
 		)
+	possible_object_paths -= banned_sheet_materials
 	var/obj/item/stack/new_metal = /obj/item/stack/material/supermatter
 	for(var/x=1;x<=10;x++) //You got 10 chances to hit a metal that is NOT banned.
-		var/picked_metal = pick(possible_object_paths) //We select
+		var/obj/item/stack/material/picked_metal = pick(possible_object_paths) //We select
 		if(picked_metal in banned_sheet_materials)
 			continue
+		var/datum/material/M = get_material_by_name(initial(picked_metal.default_type))
+		if(M.flags & MATERIAL_NO_SYNTH)
+			continue
 		else
 			new_metal = picked_metal
 			break
diff --git a/code/modules/materials/materials/_materials.dm b/code/modules/materials/materials/_materials.dm
index 0e08ac5897..54876f9fd4 100644
--- a/code/modules/materials/materials/_materials.dm
+++ b/code/modules/materials/materials/_materials.dm
@@ -96,7 +96,10 @@ var/list/name_to_material
 	return name_to_material[name]
 
 /proc/material_display_name(name)
-	var/datum/material/material = get_material_by_name(name)
+	if(istype(name, /datum/material)) //We were fed a datum.
+		var/datum/material/M = name
+		return M.display_name
+	var/datum/material/material = get_material_by_name(name) //If not a datum, we were fed a name.
 	if(material)
 		return material.display_name
 	return null
diff --git a/code/modules/materials/materials/metals/hull.dm b/code/modules/materials/materials/metals/hull.dm
index b3ff64d4fc..5aa9135763 100644
--- a/code/modules/materials/materials/metals/hull.dm
+++ b/code/modules/materials/materials/metals/hull.dm
@@ -7,7 +7,7 @@
 	table_icon_base = "stone"
 	icon_reinf = "reinf_mesh"
 	icon_colour = "#666677"
-	flags = MATERIAL_UNMELTABLE
+	flags = MATERIAL_UNMELTABLE | MATERIAL_NO_SYNTH
 	composite_material = list(MAT_STEEL = SHEET_MATERIAL_AMOUNT)
 
 /datum/material/steel/hull/place_sheet(var/turf/target) //Deconstructed into normal steel sheets.
@@ -22,7 +22,7 @@
 	icon_reinf = "reinf_mesh"
 	icon_colour = "#777788"
 	explosion_resistance = 40
-	flags = MATERIAL_UNMELTABLE
+	flags = MATERIAL_UNMELTABLE | MATERIAL_NO_SYNTH
 	composite_material = list(MAT_PLASTEEL = SHEET_MATERIAL_AMOUNT)
 
 /datum/material/plasteel/hull/place_sheet(var/turf/target) //Deconstructed into normal plasteel sheets.
@@ -37,7 +37,7 @@
 	icon_colour = "#45829a"
 	explosion_resistance = 90
 	reflectivity = 0.9
-	flags = MATERIAL_UNMELTABLE
+	flags = MATERIAL_UNMELTABLE | MATERIAL_NO_SYNTH
 	composite_material = list(MAT_DURASTEEL = SHEET_MATERIAL_AMOUNT)
 
 /datum/material/durasteel/hull/place_sheet(var/turf/target) //Deconstructed into normal durasteel sheets.
@@ -49,7 +49,7 @@
 	icon_base = "hull"
 	table_icon_base = "stone"
 	icon_reinf = "reinf_mesh"
-	flags = MATERIAL_UNMELTABLE
+	flags = MATERIAL_UNMELTABLE | MATERIAL_NO_SYNTH
 	composite_material = list(MAT_TITANIUM = SHEET_MATERIAL_AMOUNT)
 
 /datum/material/titanium/hull/place_sheet(var/turf/target) //Deconstructed into normal titanium sheets.
@@ -61,8 +61,35 @@
 	icon_base = "hull"
 	table_icon_base = "stone"
 	icon_reinf = "reinf_mesh"
-	flags = MATERIAL_UNMELTABLE
+	flags = MATERIAL_UNMELTABLE | MATERIAL_NO_SYNTH
 	composite_material = list(MAT_MORPHIUM = SHEET_MATERIAL_AMOUNT)
 
 /datum/material/morphium/hull/place_sheet(var/turf/target)
 	new /obj/item/stack/material/morphium(target)
+
+/datum/material/plastitanium/hull
+	name = MAT_PLASTITANIUMHULL
+	stack_type = /obj/item/stack/material/plastitanium/hull
+	icon_base = "hull"
+	table_icon_base = "stone"
+	icon_reinf = "reinf_mesh"
+	icon_colour = "#585658"
+	explosion_resistance = 50
+	flags = MATERIAL_NO_SYNTH
+	composite_material = list(MAT_PLASTITANIUM = SHEET_MATERIAL_AMOUNT)
+
+/datum/material/plastitanium/hull/place_sheet(var/turf/target) //Deconstructed into normal plasteel sheets.
+	new /obj/item/stack/material/plastitanium(target)
+
+/datum/material/gold/hull
+	name = MAT_GOLDHULL
+	stack_type = /obj/item/stack/material/gold/hull
+	icon_base = "hull"
+	table_icon_base = "stone"
+	icon_reinf = "reinf_mesh"
+	explosion_resistance = 50
+	flags = MATERIAL_NO_SYNTH
+	composite_material = list(MAT_GOLD = SHEET_MATERIAL_AMOUNT)
+
+/datum/material/gold/hull/place_sheet(var/turf/target) //Deconstructed into normal gold sheets.
+	new /obj/item/stack/material/gold(target)
diff --git a/code/modules/materials/materials/metals/hull_vr.dm b/code/modules/materials/materials/metals/hull_vr.dm
deleted file mode 100644
index e0dada40cc..0000000000
--- a/code/modules/materials/materials/metals/hull_vr.dm
+++ /dev/null
@@ -1,24 +0,0 @@
-/datum/material/plastitanium/hull
-	name = MAT_PLASTITANIUMHULL
-	stack_type = /obj/item/stack/material/plastitanium/hull
-	icon_base = "hull"
-	table_icon_base = "stone"
-	icon_reinf = "reinf_mesh"
-	icon_colour = "#585658"
-	explosion_resistance = 50
-	composite_material = list(MAT_PLASTITANIUM = SHEET_MATERIAL_AMOUNT)
-
-/datum/material/plastitanium/hull/place_sheet(var/turf/target) //Deconstructed into normal plasteel sheets.
-	new /obj/item/stack/material/plastitanium(target)
-
-/datum/material/gold/hull
-	name = MAT_GOLDHULL
-	stack_type = /obj/item/stack/material/gold/hull
-	icon_base = "hull"
-	table_icon_base = "stone"
-	icon_reinf = "reinf_mesh"
-	explosion_resistance = 50
-	composite_material = list(MAT_GOLD = SHEET_MATERIAL_AMOUNT)
-
-/datum/material/gold/hull/place_sheet(var/turf/target) //Deconstructed into normal gold sheets.
-	new /obj/item/stack/material/gold(target)
diff --git a/code/modules/research/circuitprinter.dm b/code/modules/research/circuitprinter.dm
index f5de9cffc6..3454d408ec 100644
--- a/code/modules/research/circuitprinter.dm
+++ b/code/modules/research/circuitprinter.dm
@@ -18,7 +18,24 @@ using metal and glass, it uses glass and reagents (usually sulphuric acid).
 
 	var/list/LockedDesigns = list() //CHOMPADDITION: FOR VR mainly.
 
-	materials = list(MAT_STEEL = 0, MAT_GLASS = 0, MAT_PLASTEEL = 0, MAT_PLASTIC = 0, MAT_GRAPHITE = 0, MAT_GOLD = 0, MAT_SILVER = 0, MAT_OSMIUM = 0, MAT_LEAD = 0, MAT_PHORON = 0, MAT_URANIUM = 0, MAT_DIAMOND = 0, MAT_DURASTEEL = 0, MAT_VERDANTIUM = 0, MAT_MORPHIUM = 0, MAT_METALHYDROGEN = 0, MAT_SUPERMATTER = 0)
+	materials = list(
+					MAT_STEEL = 0,
+					MAT_GLASS = 0,
+					MAT_PLASTEEL = 0,
+					MAT_PLASTIC = 0,
+					MAT_GRAPHITE = 0,
+					MAT_GOLD = 0,
+					MAT_SILVER = 0,
+					MAT_OSMIUM = 0,
+					MAT_LEAD = 0,
+					MAT_PHORON = 0,
+					MAT_URANIUM = 0,
+					MAT_DIAMOND = 0,
+					MAT_DURASTEEL = 0,
+					MAT_VERDANTIUM = 0,
+					MAT_MORPHIUM = 0,
+					MAT_METALHYDROGEN = 0,
+					MAT_SUPERMATTER = 0)
 
 	hidden_materials = list(MAT_PLASTEEL, MAT_DURASTEEL, MAT_GRAPHITE, MAT_VERDANTIUM, MAT_MORPHIUM, MAT_METALHYDROGEN, MAT_SUPERMATTER)
 
@@ -29,15 +46,6 @@ using metal and glass, it uses glass and reagents (usually sulphuric acid).
 /obj/machinery/r_n_d/circuit_imprinter/Initialize(mapload)
 	. = ..()
 
-	spawn()	// Go through all materials, and add them to the possible storage, but hide them unless we contain them.
-		for(var/Name in name_to_material)
-			if(Name in materials)
-				continue
-
-			hidden_materials |= Name
-
-			materials[Name] = 0
-
 	default_apply_parts()
 
 /obj/machinery/r_n_d/circuit_imprinter/process()
@@ -143,7 +151,7 @@ using metal and glass, it uses glass and reagents (usually sulphuric acid).
 
 	var/obj/item/stack/material/S = O
 	if(!(S.material.name in materials))
-		to_chat(user, span_warning("The [src] doesn't accept [S.material]!"))
+		to_chat(user, span_warning("The [src] doesn't accept [material_display_name(S.material)]!"))
 		return
 
 	busy = 1
diff --git a/code/modules/research/protolathe.dm b/code/modules/research/protolathe.dm
index 10cddcc315..11c43b573a 100644
--- a/code/modules/research/protolathe.dm
+++ b/code/modules/research/protolathe.dm
@@ -44,15 +44,6 @@
 /obj/machinery/r_n_d/protolathe/Initialize(mapload)
 	. = ..()
 
-// Go through all materials, and add them to the possible storage, but hide them unless we contain them.
-	for(var/Name in name_to_material)
-		if(Name in materials)
-			continue
-
-		hidden_materials |= Name
-
-		materials[Name] = 0
-
 	default_apply_parts()
 
 	if(dep_overlay) // CHOMPAdd
@@ -162,7 +153,7 @@
 
 	var/obj/item/stack/material/S = O
 	if(!(S.material.name in materials))
-		to_chat(user, span_warning("The [src] doesn't accept [S.material]!"))
+		to_chat(user, span_warning("The [src] doesn't accept [material_display_name(S.material)]!"))
 		return
 
 	busy = 1
diff --git a/code/modules/resleeving/machines.dm b/code/modules/resleeving/machines.dm
index e51d9bdb5f..d1c9021270 100644
--- a/code/modules/resleeving/machines.dm
+++ b/code/modules/resleeving/machines.dm
@@ -430,7 +430,7 @@
 
 	var/obj/item/stack/material/S = W
 	if(!(S.material.name in stored_material))
-		to_chat(user, span_warning("\The [src] doesn't accept [S.material]!"))
+		to_chat(user, span_warning("\The [src] doesn't accept [material_display_name(S.material)]!"))
 		return
 
 	var/amnt = S.perunit
diff --git a/code/modules/xenoarcheaology/effects/electric_field.dm b/code/modules/xenoarcheaology/effects/electric_field.dm
index 4cc0ac66ac..f00c406963 100644
--- a/code/modules/xenoarcheaology/effects/electric_field.dm
+++ b/code/modules/xenoarcheaology/effects/electric_field.dm
@@ -9,7 +9,6 @@
 
 /datum/artifact_effect/electric_field/DoEffectTouch(var/mob/user)
 	var/atom/holder = get_master_holder()
-	var/weakness = GetAnomalySusceptibility(user)
 	if(last_used >= world.time + use_delay)
 		return
 	else
@@ -32,6 +31,9 @@
 		light.flicker()
 
 	for(var/mob/living/L in nearby_mobs)
+		var/weakness = GetAnomalySusceptibility(L)
+		if(!weakness) //We have protection on!
+			continue
 		if(L.isSynthetic())
 			to_chat(L, span_danger("ERROR: Electrical fault detected!"))
 			L.stuttering += 3
@@ -39,12 +41,12 @@
 		if(ishuman(L))
 			var/mob/living/carbon/human/H = L
 			var/obj/item/organ/external/affected = H.get_organ(check_zone(BP_TORSO))
-			H.electrocute_act(rand(25, 40), holder, H.get_siemens_coefficient_organ(affected), affected)
+			H.electrocute_act(rand(25, 40) * weakness, holder, H.get_siemens_coefficient_organ(affected), affected)
 			var/turf/T = get_turf(H)
 			if(istype(T))
 				lightning_strike(T, TRUE)
 		else
-			L.electrocute_act(rand(25, 40), holder, 0.75, BP_TORSO)
+			L.electrocute_act(rand(25, 40) * weakness, holder, 0.75, BP_TORSO)
 			var/turf/T = get_turf(L)
 			if(istype(T))
 				lightning_strike(T, TRUE)
diff --git a/code/modules/xenoarcheaology/finds/find_spawning.dm b/code/modules/xenoarcheaology/finds/find_spawning.dm
index 9da98b872d..e49e20dba8 100644
--- a/code/modules/xenoarcheaology/finds/find_spawning.dm
+++ b/code/modules/xenoarcheaology/finds/find_spawning.dm
@@ -49,6 +49,8 @@
 		/datum/material/durasteel/hull,
 		/datum/material/titanium/hull,
 		/datum/material/morphium/hull,
+		/datum/material/plastitanium/hull,
+		/datum/material/gold/hull,
 		/datum/material/steel/holographic,
 		/datum/material/plastic/holographic,
 		/datum/material/wood/holographic,
diff --git a/vorestation.dme b/vorestation.dme
index 8691761a79..5b12f184af 100644
--- a/vorestation.dme
+++ b/vorestation.dme
@@ -3075,7 +3075,6 @@
 #include "code\modules\materials\materials\stone.dm"
 #include "code\modules\materials\materials\supermatter.dm"
 #include "code\modules\materials\materials\metals\hull.dm"
-#include "code\modules\materials\materials\metals\hull_vr.dm"
 #include "code\modules\materials\materials\metals\metals.dm"
 #include "code\modules\materials\materials\metals\metals_vr.dm"
 #include "code\modules\materials\materials\metals\plasteel.dm"