Water-based release.A manufacturer of a large diameter epoxy piping used for chemical conveyance has historically relied on a solvent-based mold release to release 35' (10.6 meter) pipe sections from non-tapered steel mandrels. Although the solvent-based release provided reasonable release, constant reapplication Re`ap`pli`ca´tion n. 1. The act of reapplying, or the state of being reapplied. of the mold release is said to have resulted in mandrels with crusty deposits of release and resin that were difficult and time-consuming to remove. In addition, there were said to be growing HMIS HMIS Hazardous Materials Identification System HMIS Health Management Information System HMIS Homeless Management Information Systems HMIS Hazardous Material Information System HMIS Her Majesty's Indian Ship HMIS His/Her Majesty's Inspector of Schools concerns regarding volatile solvent emissions, and the problem of storing flammable material. In a trial, MoldWiz WB-2700 was introduced in a wet winding process employing epoxy resin. The polished steel mandrels were initially prepared by applying release with a hand-pump spray bottle A Spray Bottle is a bottle that can squirt, spray or mist fluids. A common use for spray bottles is dispensing cleaners, cosmetics, and chemical specialties. While spray bottles existed before the middle of the 20th century, they used a rubber bulb, which was squeezed; the and then simply wiped with a cloth to evenly distribute the release over the mandrel mandrel /man·drel/ (man´dril) the shaft on which a dental tool is held in the dental handpiece, for rotation by the dental engine. man·drel or man·dril n. 1. surface. The results were said to be excellent, with the first subsequel mandrel releasing cleanly and easily from the mold, according to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. the company. Following the trial, all of the mandrel production was converted to MoldWiz WB-2700. After the initial release preparation, MoldWiz WB-2700 is used in dilute form (50% water/50% MoldWiz WB-2700), with one coat applied prior to each wrapping cycle. The customer credits MoldWiz WB-2700 with providing good release and eliminating the deposit buildup problems that had been common with the solvent-based mold release. Workers at the extrusion company were said to be pleased with the elimination of a solvent-based release from their workplace, and the company's health and safety objectives are said to have been met. MoldWiz WB-2700 water-based mold release is said to be ideally suited to the rigorous molding conditions of the filament winding Filament winding is a fabrication technique for creating composite material structures. The process involves winding filaments under varying amounts of tension over a male mould or mandrel. process. The MoldWiz WB-2700 release is a silicone-free emulsion of fatty acids, polyolefins and surfactants in a water vehicle. The product contains no hazardous materials, making it safe for both the user and the environment, according to the manufacturer. MoldWiz WB-2700 is a 10% active release product that is said to be easily diluted, if desired. All of the company's products are formulated from raw materials that comply with many chemical substance inventory lists. Axel Axel: see Absalon. Plastics Research Laboratories www.axelplastics.com |
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