Innovation
and co-creation
Tervakoski Films Group is the global leader in the most demanding capacitor film areas. Our efforts in innovation and product development with our customers have established a reputation for the extremely high quality we nurture every day.
With our exquisite know-how and modern machinery, dielectric materials are manufactured into high-performance capacitor films. We guarantee that our products last long and excel in extreme conditions.
Full range of high-quality PP capacitor films
Base film products
The base film for metallisation is PP film manufactured using an extremely high-quality manufacturing process ensured by authentic testing. This is a low shrinkage film with a controlled smooth surface on both sides and corona treatment on one side.
Our films are designed for high ambient temperatures to meet the needs of high dielectric strengths and long durability in AC/DC applications. Available in thickness range starting at 1.9 um.
Metallised film products
Our metallised films are dedicated to AC/DC capacitor applications at high ambient temperatures and/or high voltage stress. They display excellent AC ripple current behaviour. To guarantee high film quality, we exclusively use our own produce of base films with a thickness range starting at 1.9 um.
Metallising is done using a pure aluminium, pure zinc, zinc-aluminium alloy or Bi-metal configuration (aluminium active area and zinc contact). All films are also available with a straight and/or wave cut margin or optional pattern printing. Depending on customer design (simple or internal series configuration) the resistivity profile can be either standard or individual.
Film for impregnation products
Our film for impregnation is dedicated for 2-3 layers structure used in high voltage impregnated capacitor designs. The film has controlled surface roughness on both sides facilitating complete oil impregnation.
Our PP films are manufactured through the tenter process with super clean electrical grade resin. Each film can be used for all high-voltage power and filter capacitors – up to the largest sizes and with the highest stresses. Our RERT film has been designed to meet the needs of high dielectric strengths and long durability at high ambient temperatures.
Setting the new performance level – Read more about Tervakoski Film ECU: capacitor film for ultrahigh temperatures
Wrapping films for capacitor elements
Tervakoski Film wrapping films for capacitor elements are made of heat-sealable PP film with controlled shrinkage properties for better overwrap. Tervakoski Film wrapping films are specifically designed for wrapping purposes in the capacitor industry including ultra-high temperatures.
We offer tailormade wrapping film solutions for all capacitor needs.
Superior quality through continuous R&D
100 years of expertise
Extensive know-how and expertise in production and R&D
Exclusive usage of our own
base film
Full product traceability is assured for every manufacturing step
Fully tailored products
High-quality capacitor films developed and manufactured tailormade for unique needs