diff --git a/Contact_Compression.cpp b/Contact_Compression.cpp
index a142fda8..06782893 100644
--- a/Contact_Compression.cpp
+++ b/Contact_Compression.cpp
@@ -136,7 +136,7 @@ int main(){
 	}
 	//Contact Penalty and Damping Factors
 	dom.contact = true;
-	dom.PFAC = 0.2;
+	dom.PFAC = 1.0;
 	dom.DFAC = 0.2;
 	
 	dom.m_kernel = SPH::iKernel(dom.Dimension,h);	
diff --git a/Docs/CONTACT.txt b/Docs/CONTACT.txt
new file mode 100644
index 00000000..268eb432
--- /dev/null
+++ b/Docs/CONTACT.txt
@@ -0,0 +1 @@
+Penalty factor has influence with exists initial penetration