Rushed job gets seal of approval
Elite Polymers is a Hamilton-based plastic manufacturer that uses injection moulding, extrusion and blow moulding, to manufacture a range of custom and propriety products.
Trail Com, a firm that specialises in the manufacture and distribution of trailer components such as suspensions, braking systems, couplings and accessories, approached Elite Polymers with an issue that needed to be solved quickly.
Staff at Trail Com had a problem with an inferior seal design in a trailer master brake cylinder – it was causing leaking to occur under certain circumstances. The leak could cause brake f luid to be sprayed on expensive trailer boats, so there was a lot at stake.
A solution was required quickly to fix the issue for the summer boating season. Trail Com had tried to source a ‘ready made' part through their contacts in the automotive industry, but none could be found to fit the cylinder size required. A new diaphragm would be made to separate the brake f luid from the air and external moisture, creating a leakproof seal as well as eliminating other potential issues such as condensation/ moisture getting into the brake f luid.
Elite Polymers had the new diaphragm design drawn up on SolidWorks. To ensure the new diaphragm would be fit for the task it was decided to get a prototype made to conduct functionality testing.
A 3D model was made, then a silicone outer mould was cast around that.
Two pot urethane materials were poured into the mould, creating dimensionally correct and f lexible samples