1. Mixing of the two components
Mix Part A and Part B components according to recommended weight ratios.
The materials can be processed differently according to the version:
BLUESIL ESA 6110 A&B
Hand mixing: The two components are thoroughly mixed using an electrical or pneumatic
mixer, on a low speed setting so as to limit the inclusion of air in the mixture. A dispensing
machine can also be used.
After mixing A and B parts, it is preferable to degas the product to eliminate the air
bubbles that would be visible in the finished part and which would reduce the
mechanical and dielectric properties.
Degassing is generally carried out with a vacuum of 30 to 50 mbar releasing the
vacuum several times during the operation. A recipient with a high diameter/height ratio
is better suited to quick degassing; however the height must be sufficient to contain the
swelling of the elastomer under vacuum conditions.
Automatic mixing: A dispensing machine can also be used (refer to procedure
recommended for BLUESIL ESA 6110 QC A&B).
BLUESIL ESA 6110 QC A&B
The products should only be used by means of automatic dosing equipment with a
meter/static mixer, as the pot life is too short to hand-mix and efficiently degas the
Automatic mixing: In order to avoid any air bubbles that may affect the mechanical and
dielectric properties, it is recommended to degas separately A and B part, prior to pour
it slowly and regularly into the tanks of the dosing machine. The A and B Parts should
be dosed and mixed with a static mixer with a standard commercial equipment (A
special care is recommended in pumping the product from the tanks to avoid any air
entry before dosing and mixing).
2. After mixing
BLUESIL ESA 6110 A&B or BLUESIL ESA 6110 QC A&B are poured slowly and
regularly. In the case of a high thickness potting operation, it must be made at the
lowest point in the volume to be filled; this avoids forming and including air bubbles in
the volume. It should not be filled totally to allow expansion of the mixture at service
Certain materials that the BLUESIL ESA 6110 A&B and BLUESIL ESA 6110 QC
A&B may be in contact with when curing could inhibit the reaction. Especially
troublesome materials are: sulphur-containing cured natural and synthetic rubber
compounds (neoprene, latex, SBR), tin catalyzed silicone rubbers, amine
catalyzed epoxies, PVC stabilized with tin salts and some polyurethane