emulsion 0 1pigmet 0 4water 26 0 100 0______________________________________ the felt was impregnated to give a 1 1 dry impregnant to fibre ratio i e a pick up of 450 grams sq meter of dry impregnant the impregnated felt was dried at a temperature rising to 140 u00b0 c to provide adequate melamine formaldehyde cross linking the final gauge of the material was 4 5 mm and the final density 0 17 g cm 170 kg m 3 the impregnated felt was then back coated to a coating weight of 200 grams per square meter dry using a blade or rotary screen coater using the following formulation ______________________________________ parts per 100 wet weight______________________________________doverstrand revinex 2023 styrene butadiene 73 0latex styrene content 80 eec international speswhite clay filler 23 0 60 solids scott bader texicryl 13 302 carboxylated 4 0acrylic thickening agent 100 0______________________________________ the back coating formulation had a solids content of about 53 the back coated material was dried in a hot air drier the material according to this example had a compression modulus of 85 lbs per square inch 0 586 mpa corresponding to a mcmahon green 34 track stiffness 34 of 20 000 lb per ft 615 kn m this material was therefore suitable for use in running shoes for shoes other than running shoes such as casual or more conventional footwear a material of lower compression.