FERMADUR - PU Potting

Product catalog summary

Introduction
SONDERHOFF FERMADUR is a two-component polyurethane system designed for creating potting compounds that range from hard to gel-like consistencies. These compounds are applied and cured directly onto components using Formed-In-Place (FIP) technology. The system consists of a resin (A-component) and a hardener (B-component) mixed in a specific ratio to form a bubble-free potting compound within minutes.

Applications
The potting compounds serve various functions, including surface coating for environmental protection, encapsulating electronic components, and bonding. The formulations can be adjusted for flowability, reactivity, hardness, and color. Henkel offers over 500 application-specific formulations for electronics, automotive, and other industries.

Key Features

Excellent for sealing industrial components.
Cross-linked structure resistant to environmental effects.
Reacts at room temperature in ≥ 5 minutes.
Good adhesion due to chemical reactions.
High heat resistance and low expansion coefficient.
Viscosity ranges from thin fluid to thick paste.
Available in transparent and light-fast formulations.
Low shrinkage, good dielectric properties, and high impact strength.
Processed using a mixing and dosing machine, adaptable to various parts.
Profitable even for small product series.

Processing Information
SONDERHOFF FERMADUR systems are processed using two-component mixing and dosing machines. The recommended processing temperature is 23°C ± 5°C with a relative humidity of 40-70%.

Physical and Chemical Properties

Appearance: Black or grey, other colors available.
Viscosity: 300 to 200,000 mPas.
Hardness: Shore A range up to 80 Shore D.
Density: 0.8 to 1.7 g/cm³.
Tensile strength: Up to 12 MPa.
Elongation at break: Up to 400%.
Temperature resistance: -40 to +130°C (temporary up to +160°C).
Water absorption: ≤ 3%.
Pot life: Adjustable from 60 sec. to 90 min.
Flame retardancy: Up to UL 94 V-0 possible.

Optional Features
Includes light-fastness, thermal conductivity, static dissipation, hydrophobic properties, and protection class up to IP 68 or NEMA 12.

Product Range
The document lists various formulations with specific applications, viscosities, hardness, densities, and special features tailored for different industrial needs, such as potting compounds for sensors, circuit boards, and connectors.

Contact Information
Henkel AG & Co. KGaA, Düsseldorf, Germany. For more information, visit their websites or contact them directly.

Disclaimer
The document notes that the technical data and values are general and not binding specifications. Customers must verify product suitability for specific applications.

Catalog excerpts

SONDERHOFF FERMADUR Two-component, room temperature cross-linking polyurethane potting compounds

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The tailor-made chemistry for your electronic components. SONDERHOFF FERMADUR is the two-component polyurethane system for the manufacture of hardto gel-like potting compounds, which are placed and cured directly onto or into the component using FIP (Formed-In-Place) technology. The systems consist of a resin basis (A-component) and a hardener (B-component), which are mixed with each other in a predetermined mixing ratio. After suitable processing a bubble-free potting compound is formed in a few minutes. The function of the potting compound is determined by the application. It can range from...

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SONDERHOFF FERMADUR Two-component, room temperature cross-linking polyurethane potting compounds 10 good reasons for SONDERHOFF FERMADUR: 1. … is most suitable for sealing industrial components. 2. … after curing, it develops a cross-linked structure which is extremely resistant to environmental effects, such as humidity, dust, mechanical impacts and temperature. 3. … reacts at room temperature in ≥ 5 minutes. A furnace can significantly shorten the reaction time, but it is not always necessary. 4. … chieves particularly good adhesion to the parts’ surface due to the chemical reaction of the...

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SONDERHOFF FERMADUR Two-component polyurethane potting compounds PROCESSING INFORMATION > SONDERHOFF FERMADUR systems are processed using mixing and dosing machines for two components. The recommended processing temperature is 23 °C ± 5 °C at a relative humidity between 40 and 70 %. PHYSICAL AND CHEMICAL PROPERTIES Properties SONDERHOFF FERMADUR Black or grey, other colors upon request (including transparent) Covering the entire Shore A range up to 80 Shore D, also gel-like Tensile strength Temperature resistance Water absorption Flame retardancy Up to UL 94 V-0 possible, even with 1.5 mm coating...

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SONDERHOFF FERMADUR Two-component polyurethane potting compounds THE SONDERHOFF FERMADUR RANGE (SELECTION) SONDERHOFF FERMADUR A-component Potting compound for instrument and connector plugs Viscosity mPas Flexible, levels very well, low shrinkage, low surface tension Soft, gel-like, permanently sticky Potting compound for sensors, circuit boards, electric switches and sensor elements Flexible standard systems for electronics in the automotive industry, listed in various OEMs, good adherence Potting compound for sensors, circuit boards, electric switches and sensor elements Hight temperature...

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Get in contact with us Henkel AG & Co. KGaA Henkelstraße 67 40589 Düsseldorf Germany Tel.: +49 211 797-0 Fax: +49 211 798 4008 www.henkel.com www.henkel-adhesives.com www.sonderhoff.com The description of the possible fields of use of our products as well as the technical data and values only have a general character and do not mean that a certain product can be used under all onditions in the respective field of use. In this respect, the stated field of use is not a binding specification or usage provision. Due to the great number of environment variables and their c i nfluences (e.g. temperature,...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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