Product Information Engineer Data Sheet Physical Properties POLYURETHANE  Hardness, Shore A 60 40  100% Modulus, psi (MPa) 275 (1.9) 135 (0.9)  300% Modulus, psi (MPa) 525 (3.6) 285 (2.0)  Tensile Strength, psi (MPa) 4485 (31) 1485 (10)  % Elongation 510 555  Tear, Die C, pli (kN/m) 190 (33) 125 (21)  Tear, D-470-Split (kN/m) 20 (3.5) 9 (1.5)  Bashore Reilience 23 34    % Volume Swell, One Week      Ethyl Acetate 138 131  Toluene 75 43  5% Phosphoric Acid 1.7 1.0   Oil, Chemical and Solvent Resistance CHEMICAL RATING CHEMICAL RATING CHEMICAL RATING Acetone C Carbon Dioxide A Carbon Monoxide A Ethyl Alcohol C FREON-11 B FREON-12 A FREON-22 C Fuel oil B Gasoline B Glue A Hydraulic oils B Hydrochloric Acid 20% B Isopropyl ether B Kerosene C Lacquer Solvents X Lubricating oils B Methyl alcohol C Methyl ethyl ketone C Mineral oil A Naphtha B Perchlorethylene C SAE #10 Oil 158F A Soap solutions A Sulfuric acid -> 50% X Toluene C Trichlorethylene C Turpentine C Water 122F A         A - Little of no effect B - Minor to moderate effect C - Severe effect to complete destruction X - No data but most likely to be unsatisfactory   Hardness Comparison Chart ICS STANDARD CUSHION BLOCKS                                       Patented NOTE: CUSHION PATTERN CHANGES WITH SIZE 1/4-20 TAPPED HOLE PART NO. A B C D DURO COMMENTS LBS. TO COMPRESS .100 .200 STD-202015-40 2" 1-1/2" 3/8" 1-3/4" 40-A   15 25 STD-202015-60 2" 1-1/2" 3/8" 1-3/4" 60-A   35 65 STD-202020-40 2" 2" 3/8" 1-3/4" 40-A   15 25 STD-202020-60 2" 2" 3/8" 1-3/4" 60-A   35 65 STD-202030-40 2" 3" 1/2" 1-3/4" 40-A   25 55 STD-202030-60 2" 3" 1/2" 1-3/4" 60-A   35 135 STD-303015-40 3" 1-1/2" 3/8" 2-3/4" 40-A   25 55 STD-303015-60 3" 1-1/2" 3/8" 2-3/4" 60-A   65 135 STD-303020-40 3" 2" 1/2" 2-3/4" 40-A   25 55 STD-303020-60 3" 2" 1/2" 2-3/4" 60-A   65 135 STD-303030-40 3" 3" 1/2" 2-3/4" 40-A   25 55 STD-303030-60 3" 3" 1/2" 2-3/4" 60-A   65 135 STD-404015-40 4" 1-1/2" 3/8" 3-3/4" 40-A   50 95 STD-404020-60 4" 1-1/2" 3/8" 3-3/4" 60-A   115 225 STD-404020-40 4" 2" 1/2" 3-3/4" 40-A   50 95 STD-404020-60 4" 2" 1/2" 3-3/4" 60-A   115 225 STD-404030-40 4" 3" 1/2" 3-3/4" 40-A   50 95 STD-404030-60 4" 3" 1/2" 3-3/4" 60-A   115 225 STD-404040-40 4" 4" 1/2" 3-3/4" 40-A   50 95 STD-404040-60 4" 4" 1/2" 3-3/4" 60-A   115 225

ICS STANDARD CUSHION BLOCKS                                       Patented NOTE: CUSHION PATTERN CHANGES WITH SIZE MULTIPLY THE LENGTH OF THE BLOCK WITH THE CORRESPONDING WEIGHT ON THE CHART TO OBTAIN THE DESIRED CUSHION BLOCK   PART NO. A B C D DURO COMMENTS LBS/LINEAR INCH TO COMPRESS .100 .200 UNI-201524-40 2" 1-1/2" 3/8" 1-3/4" 40-A   7.5 12 UNI-201524-60 2" 1-1/2" 3/8" 1-3/4" 60-A   17 32 UNI-202024-40 2" 2" 3/8" 1-3/4" 40-A   7.5 12 UNI-202024-60 2" 2" 3/8" 1-3/4" 60-A   17 32 UNI-203024-40 2" 3" 1/2" 1-3/4" 40-A   7.5 12 UNI-203024-60 2" 3" 1/2" 1-3/4" 60-A   17 32 UNI-203024S-40 2" 3" 1/2" 1-3/4" 40-A EXTRA CUSHION 4.5 7 UNI-203024S-60 2" 3" 1/2" 1-3/4" 60-A EXTRA CUSHION 9.5 18 UNI-301524-40 3" 1-1/2" 3/8" 2-3/4" 40-A   9.6 20.8 UNI-301524-60 3" 1-1/2" 3/8" 2-3/4" 60-A   18.8 43.5 UNI-302024-40 3" 2" 1/2" 2-3/4" 40-A   9.6 20.8 UNI-302024-60 3" 2" 1/2" 2-3/4" 60-A   18.8 43.5 UNI-303024-40 3" 3" 1/2" 2-3/4" 40-A   9.6 20.8 UNI-303024-60 3" 3" 1/2" 2-3/4" 60-A   18.8 43.5 UNI-401524-40 4" 1-1/2" 3/8" 3-3/4" 40-A   12.5 23.7 UNI-401524-60 4" 1-1/2" 3/8" 3-3/4" 60-A   29 56.3 UNI-402024-40 4" 2" 1/2" 3-3/4" 40-A   12.5 23.7 UNI-402024-60 4" 2" 1/2" 3-3/4" 60-A   29 56.3 UNI-403024-40 4" 3" 1/2" 3-3/4" 40-A   12.5 23.7 UNI-403024-60 4" 3" 1/2" 3-3/4" 60-A   29 56.3 UNI-404024-40 4" 4" 1/2" 3-3/4" 40-A   12.5 23.7 UNI-404024-60 4" 4" 1/2" 3-3/4" 60-A   29 56.3     ICS COMPRESSION DATA PATENTED 2" UNIVERSAL CUSHION BLOCK UNI-201524, UNI-202024, UNI-203024   ICS COMPRESSION DATA PATENTED 3" UNIVERSAL CUSHION BLOCK UNI-301524, UNI-302024, UNI-303024 ICS COMPRESSION DATA PATENTED STANDARD CUSHION BLOCK