Stabilizers & Dispersing
Agents for Silicate
Emulsion Paints
As a leading global chemical manufacturer, ICL’s R&D team is continuously
developing innovative solutions which enable the manufacturing of
sustainable, high-quality paints and coatings.
ICL offers stabilizers,
co-stabilizers and dispersing
agents specially designed
for silicate emulsion paints.
What are Silicate Paints?
Silicate paints offer protection against UV radiation. They
are resistant to water and other environmental factors stuch as
acids, algae and bacteria.
Silicate paints contain mineral-based binders made long-lasting coating. Along with longevity, their high
from potassium silicate (water glass). The high alkalinity water vapor permeability ensures that moisture is
of the binding agent inhibits the growth of mold, fungi released quickly and unhindered to the outside.
and algae, thus making it possible to remove in-can The advantages come with a challenge in handling
preservatives from the formulation. By intentionally – as mixing the two component systems is very labor-
avoiding solvents and plasticizers, silicate paints are intensive and requires expert knowledge. As soon as
not only environmentally friendly, but also ideal for the two components are mixed, the silicification process
allergy sufferers. begins. Therefore, a silicate paint only offers a very
Due to the silification process (a chemical reaction with small working window, typically 1-2 days.
mineral substrates), silicate paints provide a durable,
Stabilizers for Silicate Emulsion Paints
The addition of suitable, organic binders enables the production
of stable, ready-to-use emulsion silicate paints.
ICL has developed highly effective additives that
Products VOC
prevent the silicate groups in water glass from building
a polymeric network during storage and thus
prevent the paints from thickening. LOPON® ST ~8%
With LOPON® ST, LOPON® 827 and LOPON® 828, the
viscosity of the paint levels off quickly and remains LOPON® 827 <0.1%
stable over a long period of time. LOPON® 827 and
LOPON® 828 are particularly low in VOC, which makes
them ideal for decorative wall paints for indoor LOPON® 828 <0.1%
living spaces.
50,000
Storage stability of
silicate emulsion
paints using styrene 40,000
acrylic binder.
Viscosity (mPa.s)
With each of our stabilizers, a 30,000
stable viscosity is reached after
a short period of time.
20,000
Key:
10,000
No Stabilizer
LOPON® ST
LOPON® 827 0
LOPON 828
® 1 day 1 week 2 weeks 3 weeks 4 weeks
Stabilizers & Dispersing Agents for Silicate Emulsion Paints 1
Co-Stabilizers for Silicate Emulsion Paints
To enhance the performance of silicate emulsion Where conformity to Ecolabel is desired, LOPON® STM
paints, co-stabilizers LOPON® STA and LOPON® STM is the proper choice as it is EDTA-free. Both LOPON®
are recommended. Both co-stabilizers can only be used STA and LOPON® STM add additional stabilization and
in combination with LOPON® ST, LOPON® 827 have a positive influence on leveling behavior.
and LOPON® 828.
Storage stability of 30,000
different silicate emulsion
paints with additional
co-stabilizers.
20,000
By adding LOPON® STA or LOPON® Viscosity (mPa.s)
STM the thickening is further
suppressed, and an even lower
viscosity is obtained.
10,000
Key:
LOPON® ST
0
LOPON® ST + LOPON® STA 1 day 1 week 2 weeks 3 weeks 4 weeks
LOPON ST + LOPON STM
® ®
Dispersing Agents for Silicate Emulsion Paints
With LOPON® DA 201, LOPON® DA 401 and LOPON® 826, More importantly, with potassium polymeric
ICL developed dispersing agents specifically designed dispersants, no efflorescence will be obtained during
for silicate emulsion paints. the drying process as it can through the formation of
This type of ionic dispersing agent contains potassium sodium carbonate.
as cation, meaning no further cations are brought into
the system.
During the drying process of silicate emulsion paints, carbonate salts are formed. While sodium carbonate can form white stains (left),
potassium carbonate appears colorless (right).
2
Stabilizers & Dispersing Agents for Silicate Emulsion Paints 3
4
Our Portfolio
Solid
Chemical Dosage Ecolabel
Products Content Solvent pH Value Low VOC
Basis (%) Conform
(%)
Stabilizer for Emulsion Silicate Paints
Quaternary ammonium
LOPON® ST ~20 Water > 12 0.5 - 1.0 – –
compound
Tertiary ammonium
LOPON® 827 ~20 Water 10 - 12 0.5 - 1.0 ✓ ✓
compound
Tertiary ammonium
LOPON® 828 ~30 Water 11.5 - 13 0.5 - 1.0 ✓ ✓
compound
Co-Stabilizer for Emulsion Silicate Paints
LOPON® STA Preparation with EDTA ~50 Water > 13 1.5 – –
LOPON® STM Preparation, EDTA-free ~50 Water > 13 1.5 – ✓
Dispersing Agents for Emulsion Silicate Paints
LOPON® Potassium polyacrylate –
40 - 45 Water 7.8 0.2 - 0.5 ✓ ✓
DA 201 low molecular weight
LOPON® Potassium polyacrylate –
40 - 45 Water 7.8 0.2 - 0.5 ✓ ✓
DA 401 middle molecular weight
LOPON® 826 Preparation 52 - 54 Water > 13 0.2 - 0.5 ✓ ✓
ICL is one of the world’s leading fertilizer and specialty chemicals producers
committed to fulfilling humanity’s ever-evolving needs. Our major production
activities are located in Israel, Europe, the US, South America and China, and
are supported by major global marketing and logistics networks.
Our Commitment: Successful relationships begin at the product development planning stage and extend
through plant trials and product launch. Customers come to us with challenges, and we are dedicated to
providing them with solutions. For manufacturers who rely on quality coatings, ICL offers proven performance,
long-term corrosion and tannin stain protection, and protection of the world around us.
Technical Service: Our technical support capabilities allow us to help customers achieve better products.
We are committed to building our product portfolio and continually exploring and expanding the frontiers of
today’s coatings technologies. This includes delivering timely assistance on coating formulation questions,
aiding formulators in achieving total system compatibility and identifying an optimum inhibitor package to
address individual cost and performance targets. We take the problem, analyze the parameters, work jointly
with company product experts and create solutions that exceed customer expectations.
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ICL is committed to advancing the principles of sustainability in the industries in which we operate. We
incorporate quality, health, safety and environment management systems into all phases of the chemical life
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Additional Product Lines
HALOX®: An extensive portfolio of organic
To learn more, visit: www.halox.com and inorganic corrosion and flash rust
techservice@halox.com | +49 6203 77 0 (International) | +1 (219) 933-1560 (US) inhibitors, supplemented by tannin stain
inhibitors.
This information is based on our present state of knowledge and is intended to provide general notes on our products and
LOPON® & POLYRON®: Dispersing agents
their uses. It should not therefore be construed as guaranteeing specific properties of the products described or their suitability
and stabilizers specially formulated for
for a particular application. No legal liability shall be derived from it. Any existing industrial property rights must be observed.
silicate and biocide-free paints.
The quality of our products is guaranteed under our terms and conditions. © 2023 ICL Specialty Products Inc. All rights
reserved. All information is protected under international copyright conventions. BK Giulini is a wholly owned subsidiary TARGON®: Versatile additives for the
of ICL Group. ICL HALOX 0224 construction industry.
