Duro-Bond Neoprene

Chemical Process, Industrial Applications, Tanks, Valves

Acid Resistant, Chemical Resistant, Corrosion Resistant, Good Abrasion Resistance, Heat Resistance, Ozone Resistant

Duro-Bond Neoprene is used as a lining material for resistance to chemical agents and abrasion. It is used for lining equipment such as concrete and steel tanks, agitators, shafts, and troughs.

Duro-Bond Neoprene sheet lining may be applied to a variety of surfaces and in various thicknesses. Precured Neoprene lining does not require equipment for vulcanization. It can be used to line tanks and trenches in which steam or hot air curing is impractical. Uncured Hypalon is applied while in the soft, prevulcanized state. It readily conforms to curved surfaces and can be easily applied to complex shaped equipment before it is vulcanized. When properly applied and cured, Duro-Bond Neoprene sheet lining exhibits excellent adhesive bond strength. On blasted steel the 90o peel-pull adhesion is in excess of 25 pounds per inch width in accordance with ASTM D903.

The installation of Precured Duro-Bond Neoprene elastomeric sheet lining is carried out as follows: 1. On metal surfaces sand or grit blast the areas to be lined to a gray-white metal. For concrete substrates acid washing is required in lieu of sand or grit blasting. 2. Apply one coat of adhesive primer cement immediately after blasting metal to prevent rusting. On concrete the primer should be applied after the acid washed surfaces are dry. Apply additional coat of primer cement, if necessary. 3. Apply required coats of intermediate or tie cement, allowing sufficient drying time so that the coat being applied does not lift up the preceding coat. 4. Apply the specified thickness of Precured Duro-Bond Neoprene using the minimum number of sheets and splices consistent with good lining practice. Edges of sheets overlap approximately 2" unless restricted by dimensional tolerances. Lining sheets are washed with recommended solvent and allowed to dry before application. During application, sheets are rolled and all seams and corners carefully stitched to eliminate all trapped air between lining and cemented surfaces so there is full contact with all cemented areas. 5. Edges of all sheets are skived at a 45o minimum angle from the top surface to the bottom of the sheet. A closed skive construction commonly known as down skive is used wherever Possible. Open skived splices may be used when specified The installation of Uncured Duro-Bond Neoprene elastomeric sheet lining is carried out as follows: 1. The metal surfaces are sand or grit blasted to a gray-white metal. Special care is taken to insure that the metal is free of all mill scale, rust formations, oil and grease. 2. One coat of primer is applied immediately after blasting metal to prevent rusting. Additional coats of primer are applied if necessary. 3. The required coats of intermediate or tie cement are applied allowing sufficient drying time so that the coat being applied does not lift the preceding coat 4.Edges of all sheets are skived at an angle from the top surface to the bottom of the sheet. A closed skive construction commonly known as a down skive is used wherever possible. Open skived splices may be used when specified. 5. The uncured sheet is wiped with the recommended solvent and allowed to dry before application. The sheet is then applied using the minimum number of seams consistent with good lining practice. Edges of sheet should over lap approximately 2" unless restricted by dimensional tolerances. During application, sheets are rolled and all seams and corners carefully stitched to eliminate all trapped air between lining and cemented surfaces. 6. Steam curing is required to vulcanize Uncured Duro-Bond Neoprene to produce the required physical and chemical properties and adhesion to the metal substrate