FR-4500 Tooling Board is a tough, high-density polyurethane tooling board product intended for use in master models, mold and foundry patterns, and composite tooling applications where a uniform, grain-free, dimensionally stable substrate is desired. (read more)
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Potting Compounds and Conformal Coatings Rudolph Bros. & Co. offers an extensive line of silicone encapsulating
systems and conformal coatings. Our silicone encapsulation compounds and coatings have varying degrees of work life, viscosity, and hardness for many specific encapsulatiion and coating applications such as modules, strain-sensitive components, transformers, printed circuit boards and coils. Several systems are formulated to impart a flame resistance that will meet UL 94 V-O rating.
Others are used specifically for applications where excellent thermal conductivity is required. If you require UL recognized systems, we have several excellent choices used when a device eventually must obtain UL approval.
The outstanding features of these systems are
Variable processing
Good temperature- cycling resistance
Low Shrinkage
Good adhesion to plastic housings
Among the outstanding properties of silicones is their resistance to extreme temperatures. No other elastomers can be used at temperatures above 150°C
The electrical properties of silicone rubber are compatible to those of other insulating materials at room temperature. However, silicone rubber has the advantage that these properties remain virtually constant over a temperature range from -45°C to + 180°C. The fact that their insulation resistance, dielectric strength and loss factor are practically unaltered by high temperatures is important in many applications. They are also virtually unchanged after immersion in water.
