Vented cap solves masking problems for narrow diameter tubing
Equipment
Vented cap solves masking problems for narrow diameter tubing
Keywords Finishing,Masking, Moss, Tubing
Moss Plastic Parts inform us that its new high temperature, dip moulded, vented cap has been purpose designed to provide the ideal solution to the problem of masking narrow diameter tubing during high temperature finishing operations such as powder coating,stove enamelling, paint spraying, plating and anodizing (Plates 3 and 4).
Masking of narrow diameter tubing, such as that typically used in refrigeration systems, can present a particular challenge due to the problem created by the increasing internal pressure as the trapped air heats up during the stoving operation. This can cause conventional caps to break their masking seal or even blow them right off.
Moss explains that the unique patented design of its vented cap provides a particularly elegant solution as it relieves the building up of internal air pressure by channelling excess air out through a relief track into a collection chamber. Once the positive air pressure has built beyond a certain level the lip of the cap will lift slightly, enabling the air to escape. As soon as the pressure is relieved the cap then automatically reseals itself, preventing paint or powder particles from entering the component.
The Moss vented cap is available direct from stock to fit either 3/16" (4.7mm) or 1/4" (6.3mm) diameter straight wall tubing. Moss can also manufacture custom designed vented caps to suit specific masking requirements.
Plate 3 The new high temperature, dip moulded, vented cap from Moss Plastic Parts
Plate 4 The vented cap has been purpose designed to provide the ideal solution to the problem of masking narrow diameter tubing during high temperature finishing operations
The Moss vented cap is dip moulded in flexible high temperature PVC which is capable of withstanding temperatures up to +200°C continuously and +230°C intermittently.
Details: Moss Plastic Parts Limited, UK. Tel: +44 (0) 1865 841100; Fax: +44 (0) 1865 844489.
