Attachment Methods
RTV Adhesives
In the field, a strong bonding to application surfaces could be achieved by using room temperature adhesive pastes. Red colored RTV 106 and transparent RTV 116 are the two types of adhesives available. Both these RTV materials are adequate for temperatures up to 5000F.
Pressure Sensitive Adhesive
Silicon rubber heaters could be made with a thin layer of high temperature (3250F) adhesive backing. This adhesive, which can easily bond to practically any surface, is supplied with a protective cover, which can be easily removed before applying the heater to any surface. The watt density of a heater should not pass 5 watt/in2 when a PSA is used.
Factory Vulcanization
This is the most efficient method to bond a heater to a surface. Using high temperature and pressure, Silflex heaters can be vulcanized to a surface. However, bonding through this method can be carried out only in the factory.
Mechanical Fasteners
When a silicon rubber heater is wrapped around an application, the ends of the heater can be fastened by attachments used on fabrics. Eyelets with lacing cords, Velcro hook and loop, metallic fasteners with springs, and independent straps are the most commonly used fasteners. |
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