...Spray Up Process for the Manufacture of an Acrylic Bathtub Method Used: Vacuum Forming and Spray Up Presented By: LAURA URENA 1 Bathtub Manufacturing Using Spray up Technique 2 Table of Contents I. II. Open Mold: Spray Up. Major advantages………………………….4 Sheet metal forming for mold……………………………………….….5 III. IV. V. VI. VII. VIII. IX. Mold Release……………………………………………………………………..6 Vacuum forming molding..………………………………………………..7 Spray up process description……………………………………………10 Materials and equipment used………………………………….…….13 Technical drawings ………………………………………………………...17 Cost analysis…………………………………………………………………….19 Video………………………………………………………………………………..20 X. References……………………………………………………………….…….21 3 Open Mold: Spray Up Fibre is chopped in a hand-held gun and fed into a spray of catalyzed resin directed at the mould. With open molding, the gel coat and laminate are exposed to the atmosphere during the fabrication process. The selection of this technique for the manufacture of the bathtub was because the feasibility that open mold methods allows such as: Most appropriate technique based on the costs of tooling due to the single cavity mold of fiberglass used for the size of the part 30x35x18 in. Portable equipment permits on-site fabrication. This technique enable the manufacturing of hot bathtubs that requires different types of reinforcement able to tolerate heat and load. 4 Sheet Metal for Bathtub Mold Injection mold is a technique used for the manufacture of bathtubs. For...
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