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BERMOCOLL
for Paints :
[Manufactured by: Akzo Nobel Surface
Chemistry, Sweden]
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BERMOCOLL
additives are cellulose ethers (Ethyl Hydroxy
Ethyl Cellulose) and are used as thickeners, stabilisers
and water retaining agents for Water Based Paints
and Cement Paints. They are available in a wide
range of viscosities.
BERMOCOLL
forms colloidal, aqueous solutions, and is known
for its efficiency as a
- Thickening
Agent
- Dispersing
Agent
- Stabilizing
Agent
- Protective
Colloid
- Water
Retaining Agent
- Binding
Agent
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Following are
the grades of BERMOCOLL available with us:
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Viscosity
of aqueous solutions at 20°C at 1% conc.
Measurements in mPa.s (cP) with Brookfield Viscometer
type LV |
| BERMOCOLL
EBS 411 FQ |
1,000
± 200 |
| BERMOCOLL
EBS 451 FQ |
3,000
± 600 |
| BERMOCOLL
EBS 481 FQ |
5,000
± 1,000 |
Minimum packing
for all grades: 20 kg bag (multi-ply paper bag with an inner
polyethylene bag).
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BERMOCOLL
EBS stands for Enhanced Bio-Stability:
Cellulose ethers are attacked
with different intensity by micro-organisms and enzymes.
The resulting effect is a decrease in viscosity due
to the reduction in the degree of polymerisation. BERMOCOLL
EBS is modified along its cellulosic backbone to make
it more resistant to enzymatic attacks than most other
water soluble gums and polymeric materials. The addition
of a preservative prevents bacterial growth during storage.
BERMOCOLL EBS grades are available in viscosities ranging
from medium to high.
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BERMOCOLL
FQ: for delayed hydration
BERMOCOLL FQ grades provide delayed
hydration, which results in exceptional flexibility in handling
and control of the solubilisation rate.
Hydrophobically
Modified Cellulose Ether (Associative Cellulosic Thickner)
BERMOCOLL
EHM is an associative,
hydrophobically modified cellulose ether (EHEC) that combines
water-phase thickening with a hydrophobic association with
other ingredients in the paint. This means that the final
paint properties can be affected to a greater extent than
with conventional cellulosics alone. BERMOCOLL EHM builds
viscosity differently than traditional cellulose ethers.
Since
the ICI viscosity will be higher than with the same relative
quantity of conventional BERMOCOLL, resulting in enhanced
brushing viscosity and better film build. Levelling is also
improved, since at lower shear rates, viscosity is usually
lower with BERMOCOLL EHM. Due to this, it is possible to make
a paint which will finish the job in just SINGLE COAT. It
also has a low DP and hence a low elasticity, leading to excellent
spatter resistance. Finally, its enzyme resistance is the
same as for the EBS grades.
The
grade available with us is BERMOCOLL EHM 200
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Viscosity
at 20°C at 1% solution (Brookfield LV) |
| BERMOCOLL
EHM 200 |
Min.
250 mPa.s |
For more information
on BERMOCOLL please visit www.bermocoll.com
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