25mm thickness black bakelite plate insulation sheet Phenolic Foam Board plexiform layers phenolic paper laminate - AliExpress
SilveRboard 1 in. x 2 ft. x 48 in. R5 Radiant Acoustic Insulation Kit - STC 19 (12 sheets) - 96 sq. ft. SB12AKIT - The Home Depot
Fiberglass Synthetic Stone Heat Insulation Board HIGH TEMP 350℃ Black Plate 100x100,200x200,300x300mm * Thick 3-6mm DIY Material - AliExpress
35mm Xpe Irradiation Closed Cell Foam Insulation Roll PE Material Rot Resistant
Foam Board Black 1/2in 30x40 (Box of 25) | plazaart.com
Black Rigid Polyethylene Foam
Factory Die Cut Custom Black Foam Board Packing EVA Foam Sheet 1mm 2mm 3mm 4mm EVA Roll - China Air Conditioner Sheet, Rubber Insulation | Made-in-China.com
ROCKWOOL Cavityrock Black Insulation Board - General Insulation
Ultra Board Classic 1" 4' x 8' Black Foam Board
STYROFOAM R-2.75, 0.55-in x 4-ft x 8-ft Residential Sheathing Faced Polystyrene Board Insulation in the Board Insulation department at Lowes.com
Amazon.com: Black Foam Sheet Self Adhesive Rubber Padding Neoprene Sponge Rubber Mat Padding Foam Rubber Sheet Insulation Rubber Foam Sheet (L:12in x W:8in x T:1/8in 5PCS) : Industrial & Scientific
Amazon.com: 8 Pcs 12 x 8 x 4/5 Inch Self Adhesive Foam Padding Sheet Neoprene Rubber Sheets Thick High Density Closed Foam Pad Anti Vibration Anti Slip Insulation Foam Board Backing for
Elmer's Foamboard Pack - 20'' x 30'' x 3/16'', Black, Pkg of 10| Utrecht Art Supplies