diff --git a/src/simulation/elements/RSSS.cpp b/src/simulation/elements/RSSS.cpp
index a853ddd13..10c8ceaa7 100644
--- a/src/simulation/elements/RSSS.cpp
+++ b/src/simulation/elements/RSSS.cpp
@@ -30,7 +30,7 @@ void Element::Element_RSSS()
 	Weight = 100;
 
 	HeatConduct = 251;
-	Description = "Solidified resist.";
+	Description = "Solidified resist. Blocks pressure and insulates SPRK. Liquefies on contact with NEUT.";
 
 	Properties = TYPE_SOLID|PROP_NEUTPASS;
 
diff --git a/src/simulation/elements/RSST.cpp b/src/simulation/elements/RSST.cpp
index 426197167..6640bb5e8 100644
--- a/src/simulation/elements/RSST.cpp
+++ b/src/simulation/elements/RSST.cpp
@@ -30,7 +30,7 @@ void Element::Element_RSST()
 
 	DefaultProperties.temp = R_TEMP + 20.0f + 273.15f;
 	HeatConduct = 44;
-	Description = "Resist.";
+	Description = "Resist. Solidifies on contact with PHOT, and reacts with other energy particles.";
 
 	Properties = TYPE_LIQUID|PROP_NEUTPASS;