Manufacturing Process


The two primary processes for manufacturing thermoset laminate sheets are:-

(1) Low pressure laminates :

Low pressure laminates typically use a glass mat substrate. Typical resins used in the low pressure laminate manufacturing process include polyester, vinyl ester, and epoxy. The process produces an excellent combination of mechanical strength, dielectric properties, and thermal performance. One advantage of the low pressure laminate manufacturing process is the ability to use a variety of fillers and additives to create a range of desirable properties from flame retardance to track resistance.

The manufacturing process for our low pressure thermoset laminate sheet materials begins with the selection of the proper resin formulation to provide the properties required for a specific application. Low pressure laminates are typically made following the same basic steps as follows:

The low pressure laminate manufacturing process is considered to be more cost effective than the high pressure laminate process due to the faster cycle time from the beginning of the process to the end of the process. With composite materials, there are always trade-offs among the properties of the various materials depending, in part, on the manufacturing process.

Characteristics SMITHERM - SM14 SMITHERM - SP14
MICA TYPE MUSCOVITE PHLOGOPHITE
COLOUR WHITE CREAM BROWN
MICA CONTENT % Min 90 90
RESIN CONTENT % Max 10 10
DENSITY Gm/cm3 2.0~2.2 2.0~2.2
HEAT RESISTING CONTINUOUS °C 500 700
HEAT RESISTING INTERMITTENT °C 800 1000
DIELECTRIC STRENGTH @23°C KV/mm >20 >18
EDGE STRENGTH Kg / 0.1MM 1.3 0.9
TENSILE STRENGTH N/mm2 140 100
FLEXURAL STRENGTH N/mm2 180 150
WATER ABSORBATION % <1 <1
Data are average results of laboratory tests conducted under standard procedures and are subject to Variation, These do not constitute a warranty or representation for which we assume legal responsibility

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