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PYRO-SAFE® B PX 2100

PYRO-SAFE® B PX 2100

PUR Protective Coating and Casting Compound

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PYRO-SAFE® B PX 2100

PYRO-SAFE® B PX 2100

PUR Protective Coating and Casting Compound


PYRO-SAFE® B PX 2100 is a flame retardant, flexible and cold curing polyurethane compound. It consists of two components and can be used for temperature ranges from -40 to +90°C. It is particularly suitable as a potting resin system with electrically insulating properties in heavy-duty applications. It is used as a moisture-resistant, gas-proof and pressurised water-proof coating, potting or filler for electrical components up to the high-voltage range.

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Field of Application

  • Module & system level
  • On request
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Technical Data

PYRO-SAFE® B PX 1100 (resin) PYRO-SAFE® B PX 1100 (hardener)
Colour/Odour Brown / Odourless
Density (+20°C) 1.62 g/cm³ 1.22 g/cm³
Mixed density 1.58 g/cm³
Mixing ratio (wt%) 91 parts 9 parts
Application temperature > +5°C / rel. humidity < 80 %
Viscosity approx. 40,000 mPas approx. 110 mPas
Viscosity of the mixture approx. 20,000 mPas
Waterproofness 2.5 bar
Gas tightness Technically tight depending on layer thickness up to 1 bar helium gas pressure
Pot life of the mixture (Bookfield RVT, +23°C, 300g) 60 min.
Chem. curing of the mixture 16 – 24 hrs.
Flash point > 200°C
Application instructions The casting compound is prepared by carefully mixing the hardener component into the resin (recognisable by a uniformly coloured casting compound). The finished mixture can be worked for approx. 40 – 60 minutes (depending on batch size and temperature), depending on the ambient temperature. Care must be taken that neither the components nor the uncured mixture come into contact with moisture of any type. Moisture triggers unwanted chemical reactions, causes the material to foam and changes the property values.
Storage +10 and +40°C
12 months in sealed original container
Safety information Further information can be found in the safety data sheet.
Moulding Material
Shore hardness (DIN 53505) 88 – 93 Shore A; 45 – 50 Shore D
Post-curing of the samples 24 hrs / 80°C
Burning behaviour according to UL 94 VO
Creepage resistance CTI 600 (DIN/IEC 112)

Delivery & Packaging

Packaging Tin Pail
Container size 1 kg 5 kg
Article number on request

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PYRO-SAFE® B PX 2100

PYRO-SAFE® B PX 2100

PUR Protective Coating and Casting Compound