Lamvin's standard panel construction:

Acoustical Core:
6-7lb. density, rigid fiberglass

Facing:
10-20 lb density, molded fiberglass 1/8" thick

Edges:
Chemically hardened edges to reinforce panel perimeter against warping and damage (aluminum edge available).

Finish:
Coated, with an acoustically transparent, textured finish. (custom colors available)

Size and thickness:

Edge details available:

NRC 0.80 to 0.90 on 1"
NRC 00.95 to 1.50 on 2"

Fire test:
ASTM E 84
Class I (or A) flame spread rating (tunnel test)
UBC Standard 8-2
(corner burn test)

Mountings available:
Velcro
Adhesive
Impaling clip
Concealed spline
Mechanical "Z" clip