Resin
Damival® U602 (40) White / H901 Blue (13682 AW40 / 13481 BB00)
▪ Polyurethane potting resin
▪ Not CMR classified, MDI free hardener,
▪ Flexible resin, even at low temperature, Shore Hardness A 46
▪ Self-extinguishing, UL94 V0 approved (file E108253)
▪ Approved for railway application: EN45545-2 HL3 for R22-23-24
▪ Thermal resistant up to 150°C
▪ High thermal conductivity: 0.95 W/m.K
▪ Coloured hardener for an easy check of the mix quality
Description
Two parts polyurethane resin, Damival U602 (40) White with the hardener H901 Blue (former 13682 AW40 + 13481
BB00), is free of MDI and not CMR classified. Very flexible and thermal resistant up to 150°C.
Compliant with RoHS, ELV 2000/53/CE regulations, free of any SVHC substances according to REACH , and halogen
free according to IEC 61249-2-21 and IPC 4101B.
Excellent compatibility with solder pastes (Bono test, corrosion factor < 8%) and good resistance to sulfur based gases
(H2S and SO2). Low smoke emissions and toxicity in case of fire as per EN45545-2 standard.
Application
Potting, casting resin for electronic assemblies, sensors, fragile components protection. Self-levelling potting adhesive
for batteries.
Processing
The resin must be stirred prior use, as it contains fillers which may settle during storage. Avoid air introduction during
stirring.
Polyurethane resin and hardener are sensitive to moisture during the processing steps (storage, mixing, casting). The
parts to be casted should be dry and clean.
A preheating of the parts and/or of the resin may improve the encapsulation. A vacuum processing enhances the
dielectric and mechanical properties.
Mixing can be done by machine or manually. Easy check of the quality mix thanks to the colored hardener.
The gel time and the curing time depend on the mixed volume, the temperature and the thickness of the layer. Final
properties are depending on the curing level.
Mixing ratio (resin/hardener):
Weight: 100 / 9
Volume: 100 / 13
Packaging
Resin: 25 kg, 250 kg metallic drum
Hardener: 5kg, 20 kg, 200 kg metallic drum
Storage conditions – Shelf life
Resin: 12 months in original sealed packaging, at maximum 25°C, protected from moisture. A storage above 25°C will
increase the settling. Higher temperature can be achieved during short period of time.
Hardener: 12 months in original sealed packaging, at maximum 25°C, protected from moisture. Higher temperature can
be achieved during short period of time.
