From 3160f007a6ce1ba8344d78766050dba5933fd459 Mon Sep 17 00:00:00 2001
From: ploopyco <54917504+ploopyco@users.noreply.github.com>
Date: Fri, 17 Feb 2023 14:20:03 -0500
Subject: [PATCH] Updated Appendix D: Hardware (markdown)

---
 Appendix-D:-Hardware.md | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Appendix-D:-Hardware.md b/Appendix-D:-Hardware.md
index ac5ac51..a1a497b 100644
--- a/Appendix-D:-Hardware.md
+++ b/Appendix-D:-Hardware.md
@@ -57,13 +57,15 @@ Details:
 Details:
 
 - 3/4" thick
-- Lowest possible pressure to compress you can get
+- Lowest possible pressure to compress you can get (a PSI of 1.5 to compress 25% or better is recommended)
+- Polyurethane or similar material (different materials may result in different acoustic properties)
 
 ## 1/8" Foam
 
 Details:
 
 - 1/8" thick
+- Polyurethane or similar material (different materials will result in different acoustic properties)
 
 ## Magnets