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INNOVATIONS: PRESENT&FUTURE
New Water-based High-gloss Top Coat INVERPUR/R Halves Drying Times Maurizio Magnani R&D Chemist at Sherwin-Williams, Bologna – Italy
gi.emeai.marketing@sherwin.com
The laboratory of Inver, a long-standing paint manufacturer that is now part of the multinational company Sherwin-Williams, has developed a new water-based top coat that reduces drying times and temperatures to increase production capacity and reduce energy costs: INVERPUR/R.
T
he switch from solvent-based to water-based paints was a
long. This issue had been pointed out by the market since the beginning
revolution in the industrial coating sector. Water-based products,
and Inver1’s R&D department had been trying to provide a solution for
which have been around since the 1980s, offer considerable
some time. The turning point occurred during the pandemic: in the
advantages, but also present some critical aspects. Their benefits include
darkest period of 2020, the company’s laboratory did not stop, managing
sustainability and healthiness for both applicators and their working
to formulate a water-based high-gloss top coat with reduced drying
environment: in the woodworking sector, this type of paint has become
times, actually similar to those of solvent-based products. The result
prevalent precisely due to these characteristics. When it comes to metal
was INVERPUR/R, a formulation using a water-based, two-component
components, on the other hand, the search for innovative solutions to
polyurethane acrylic resin, which represents the evolution of Sherwin-
streamline the application operations and make the production process
Williams’ traditional technology: it is able to work perfectly both in optimal
smoother is still in full swing.
drying conditions, such as those offered by a dedicated oven with pre-set
However, one of the most critical aspects for a company that chooses to
temperature parameters, and in less than perfect conditions, such as
use water-based products for its coating process is the management of
ambient ones.
drying times: if the user is not equipped with a curing oven, by choice or necessity, these paints’ drying time after application can be significantly
48
N. 73 - JANUARY/FEBRUARY 2022 - international PAINT&COATING magazine
1
A brand of The Sherwin-Williams Company.
