Lamvin's standard panel construction:

Acoustical Core:
1.5 to 6lb density, fiberglass

Facing:
24 to 18 gauge G-90 Galvanized .032 aluminum / stainless steel. Available in flat or corrugated face.

Perforations:
3/32" diameter on 5/32" staggered centers, 33% open area (custom perforations available).

Finish:
Natural or powder coat are standard finishes. Colors: white, tan, grey and black. (custom colors available)

Back Side:
Open.
Available with a solid back of 24 gauge G-90 Galvanized, .032 aluminum or stainless steel.

Size and thickness:

Edge details available:
Square

NRC 0.95 to 1.10

Fire test:
ASTM E 84
Class I (or A) flame spread rating (tunnel test)

Mountings available:
(Example: Soundsucker® II) Available in 20 to 14 gauge galvanized steel, aluminum or stainless steel.