ISO-POX® CC500-XSL
Transparent epoxy casting resin
ISO-POX® CC500-XSL
ISO-POX® CC500-XSL is a cold-curing, highly transparent epoxy casting resin, specially stabilized against yellowing, for casting electronic components. Different reaction speeds can be achieved by choosing the hardener (see below). This makes it possible to cast large layers in one go without causing internal temperature peaks and burns in the epoxy resin body. However, longer curing times must be accepted (see below). Coatings and moldings made from ISO-POX® CC500-XSL form tack-free, scratch-resistant surfaces. ISO-POX® CC500-XSL does not contain any plasticisers and does not tend to become brittle. The compound has good corrosion protection properties and shows high adhesion to metal, ceramics and many plastics. ISO-POX® CC500-XSL is RoHS compliant according to EU Directives 2011/65/EU (“RoHS”) and 2015/863/EU (“RoHS III”).
Technical data
Resin
Colour
Viscosity (25°C; rot.; 1 s-1)
Viscosity (25°C; rot.; 10 s-1)
Density (23°C)
Colourless
Approx. 1100 mPas
Approx. 1000 mPas
Approx. 1,12 g/cm³
Hardener
Colour
Viscosity (25°C; rot.; 1 s-1)
Viscosity (25°C; rot.; 10 s-1)
Density (23°C)
Colourless
Approx. 130 mPas
Approx. 120 mPas
Approx. 0,99 g/cm³
Mixture
Mixing ratio resin : hardener
2 : 1 parts by weight
Colour
Colourless (other colours on request)
Density (23oC)
Approx. 1,05 g/cm³
Pot life (23°C) /
Gel time (23°C)
Approx. 9 h
Approx. 48-96 h
Mixed viscosity (25°C; rot.; 1 s-1)
Approx. 550 mPas
Mixed viscosity (25°C; rot.; 10 s-1)
Approx. 530 mPas
Cured product
under standard curing condition
(14 days 23°C / 50% relative humidity) unless otherwise stated
Hardness Shore A
(23°C; 14d RT 50% rel. h.) /
Hardness Shore A
(23°C; oven curing: 4hRT + 24h80°C)
> 90
> 90
Hardness Shore D
(23°C; 14d RT 50% rel. h.) /
Hardness Shore D
(23°C; oven curing: 4hRT + 24h80°C)
Approx. 73
Approx. 75
Long-term temperature resistance /
Short-term temperature resistance
Approx. 120°C
Approx. 180°C
Glass transition temperature (midset)
Approx. 60°C
Tensile strength (5A specimen)
(2 mm thickness; speed: 10 mm/min; 23°C)
Approx. 23 N/mm2
Elongation at break (5A specimen)
(2 mm thickness; speed: 10 mm/min; 23°C)
Approx. 50%
Tear resistance
(W-specimen; incision; speed: 10 mm/min; 23°C)
Approx. 80 N/mm
Dielectric strength
> 20 kV/mm
Thermal conductivity
Approx. 0,20 W/K×m
Tracking resistance (CTI)
> 600
Water absorption after 28 days
in water immersion (23°C)
Approx. 2,00%
Water vapour permeability
(75% relative humidity; 23°C; 1 mm thickness)
Approx. 1,00×10-6 g/(Tag×mm2)
Storage and transport
Store in a dry and airtight closed container at 5 – 50°C. Can be stored for at least 12 months in original sealed containers under the above conditions. Short-term deviations during transport and storage are acceptable.
Cleaning
To ensure good adhesion of the cast resin the customer should individually test the suitability of the involved surfaces. Possible pre-treatments like cleaning, activation processes (plasma process) etc. should also be taken into account. The contact surfaces should be free of dirt such as dust, grease or water. For cleaning we recommend our ISO-RC Degreaser for wipe degreasing or ISO-RC Flux-Off + ISO-RC Spraywash for spray degreasing (available in 400 ml spray cans).
Processing
Weigh the resin and hardener in the desired mixing ratio and mix for 1 – 3 minutes (depending on mixed quantity and processing time). Apply suitable mixing speed in order to ensure complete homogeneous mixing without introducing too many air bubbles into the reaction mass. The ideal processing temperature is 20 – 25°C. In general, curing is delayed at lower temperatures and accelerated at higher temperatures. Before casting, a homogeneous mass, free of streaks, must be obtained. Then pour immediately and do not scrape the mixing vessel. Air bubbles in the reaction mass can be removed before the end of the potlife by evacuating the material or carefully fanning the surface with a hot air gun. Machine casting is also possible.
The EC safety data sheet provides information on safety-relevant product properties.