"Neozone" A/2.0 The adhesion of "Neoprene" cements to porous and nonporous surfaces is increased when "Durez" 26228 is utilized in the cement formulation. The addition of 10 to 50 phr of 26228 resin will produce an increase in adhesion to porous substrates such as wood, paper, etc.; to synthetic fibers such as "Dacron," nylon and rayon; also to nonporous substrates such as glass, metals and unplasticized plastic films. The addition of more than 50 phr of resin in the formulation will continue to improve adhesion at a sacrifice of adhesive film flexibility. a marked increase in heat resistance is also obtained as the resin content in the formulation is increased. Formula No. C: Solvent or Solvent Blend/543.0 Rubber Recipe/111.0 Zinc Oxide/5.0 A: "Neoprene" Rubber/100.0 "Neoprene" AC/100.0 Magnesium Oxide/10.0 Zinc oxide/5.0 B: Solvent or Solvent Blend/100.1 Antioxidant/2.0 Water/0.5 Heat-reactive phen
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