Material Z: MRayl VL: m/s VS: m/s Density: kg/m3 Attn: dB/cm/MHz Type Vendor
Polyurethane, RP-6400 1.56 1500 1040 Rubber REN
Polyurethane, RP-6410 1.55 1490 1040 15.75 Plastic REN
RTV-30 1.41 9700 1450 3.5 Rubber GE
RTV-77 1.36 1020 1330 4 Rubber GE
Ecothane CPC-39 1.63 1530 1060 Rubber EC
Acrylic, Plexiglas 3.08 2610 1180 2.48 Plastic Rohm
Acrylic, Clear 326 2750 1190 1.28 Plastic Rohm
Cellulose Butyrate 2560 2140 1190 4.4 Plastic
Delrin, Black 3.45 2430 1420 6.1 Plastic D
Ethyl vinyl acetate(28%) 1.6 1680 950 Plastic USI
Nylon, black 3.15 2770 1140 0.6 Plastic
Parylene C 3.15 2.77 1140 0.1 Plastic MM
Polycarbonate, balck 2.77 2270 1220 4.4 Plastic GEP
Polycarbonate, blue 2.72 2260 1200 4.61 Plastic Mobay
Polycarbonate, clear 2.69 2270 1180 4.5 Plastic PORT
Polyethylene, low density 1.79 1950 540 920 0.48 Plastic USi
Polypropylene, white 2.36 2660 890 3.84 Plastic PORT
Polystyrene, styron 666 2.52 1400 1150 1050 0.36 Plastic E
PVC,grey 3.27 2380 1380 2.24 Plastic PORT
Vinyl,Rigid 2.96 2230 1330 2.56 Plastic
Alumina 40.6 10520 3860 Metal
Beryllium 24.1 12890 8880 1870 Metal
Bismuth 21.5 2200 1100 9800 Metal
Boron carbide 26.4 11000 2400 Ceramic
Boron nitride 9.88 5030 3860 1965 compound
Brass 40.6 4700 2100 8640 Metal
concrete 8 3100 2600 Mix
Copper 44.6 5010 2270 8930 Metal
Epotek301 2.85 2640 1080 Epoxy
glass 11.4 5100 2800 2240 Mix
glass-flint 16 4500 3600 Mix
glass-quartz 12.1 5500 2200 Mix
Glucose 5 3200 1560 Mix
Gold 63.8 3240 1200 19700 Metal
Granite 17.6 6500 2700 2707 Mix
Iron 46.4 5900 3200 7690 Metal
Lead 24.6 2200 700 11200 Metal
Marble 10.5 3800 2800 Mix
Nickel 49.5 5600 3000 8840 Metal
Platinum 69.8 3260 1730 21400 Metal
Porcelain 13.5 5900 2300 Mix
Rubidium 1.93 1260 1530 Mix
Salt 10.37 4780 2170 compound
Sapphire 44.3 11.1 6040 3990 Mix
Scotch tape 2080 1900 1160 Mix
Sillicon 19.7 8430 5840 2340 Crystal
Sillicon carbide 42 13060 7270 3217 Crystal
Sillicon nitride 36 11000 6250 3270 Crystal
Silver 38 3600 1600 10600 Metal
Silver epoxy, e-solder 3022 5.14 1900 980 2710 8 Metal
Slate 13.5 4500 3000 Mix
Sleel stainless 45.7 5790 3100 7890 Metal
Sulphur 2.7 1350 2000
Tantanlum 54.8 4100 2900 16600 Metal
Teflon 2.97 1390 2140 0.78 Plastic
Tin 24.2 3300 1700 7300 Metal
Titanium 27.3 6100 3100 4480 Metal
Titanium carbide 42.6 8270 5160 5150 Ceramic
Tungsten 101 5200 2900 19400 Metal
Uranium 63.8 3400 2000 18500 Metal
Zinc 29.6 4200 2400 7000 Metal
Zinc Oxide 36.4 6400 2950 5680 Metal
Zirconium 30.1 4650 2250 6480 Metal
Water 25 degree 1.494 14967 9980 Liquid
Water 30 degree 1.509 1509 1000 Liquid
Water 60 degree 1.55 1550 1000 Liquid
Water, sea at 25 degree 1.569 1531 1025 Liquid
Oil, olive 1.32 1445 918 Liquid
Mercury at 25 degree 19.58 1450 13500 Liquid
pvc grey 3.27 2380
peek 5 plastic
water 25 1.494 14967 9980 liquid
ruber 1,5
rubber 1,5