ER12 – EH35LV Electric Potting, Low cracking

Resin ER12  –  Hardener EH35 LV

 

Medium viscosity, unfilled, slow setting, epoxy casting and impregnation resin system for encapsulation of electrical and electronic equipment. It exhibits excellent flexibility, adhesion, superior corrosion resistance, high peel strength. Excellent for potting small electric transformers and coils, with minimum risk of cracking due to shrinkage.

 

ER12 is a standard epoxy resin used for many applications. It can be mixed with a variety of fillers, silica S1 or S15, calcium carbonate Kulu 2 or Kulu 15. This system complies with FDA 21 CFR 175.105 – adhesives and coatings.

 

 

Description

 

Colour:               

Resin ER12                         Clear

Hardener EH35               Amber

 

Mixing Ratio:    

ER12             100      by weight

 EH35            50 – 70  

 

Viscosity:            

ER12     12000  mPa.s at 25 Deg. C (Brookfield)

EH35  LV    5000  mPa.s at 25 Deg. C

 

Pot life:     120 minutes at 25 Deg. C (100 g)

Gelation Time:     385 min. at 25 Deg. C (Test tube Gelnorm DIN 16945)

Thin Film Time:  23 hours at 25 Deg. C

 

Mix Resin and Hardener well, trying to trap as little air as possible.

 

CHARACTERISTICS after CURE

 

Hardness:    80 Shore D after 3 days at 25 Deg. C

Heat Distortion Temperature:         57,5 Deg. C

Tensile Strength:                              47 MPa

Tensile elongation:                           4,9 %

Flexural Strength:                            73 MPa

Bond Strength:    steel / steel        23 MPa

 

 

The above data are offered for customer’s guidance only. It implies no guarantee. Customers must conduct their own tests to determine the suitability of the material for their specific applications. Version V22.1  15.11.22