tixotropia thixotropy
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What is thixotropy and how does it influence the manufacturing of paint and related products?

Thixotropy is a property of some products which change their viscosity and become more fluid when subject to constant shear force, e.g., in the mixing stage. The longer the fluid is under shear stress, the less its viscosity.

In normal conditions, a thixotropic fluid is highly viscous (equilibrium viscosity) but becomes liquid or more fluid when subject to shear force. This type of product takes certain time to reach its equilibrium viscosity when an instantaneous change in shear rate occurs. For example, when a mixer’s shear work is stopped or slowed down, the fluid tends to reach equilibrium viscosity, which is always higher than its viscosity when it is being mixed. Read more

acabado de pinturas, paint finishing
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The paint finishing stage in the manufacturing process

The paint finishing stage in the manufacturing process is, together with the dyeing stage, part of the final mixing phase. Both are performed just before filling.

Following the dispersion and grinding phase, discussed in a previous article, a product finishing or completion stage is required. Mixing systems are used in this new stage, by means of mixing turbines, to obtain a turbulent motion of the product. The end goal of the paint finishing stage is to achieve a homogeneous mixture from several liquids, and thus create a product that complies with the established properties that should characterise the final product. Read more

tipos de residuos en la fabricación de pinturas
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Types of waste in the paint and related products industry

Growing environmental awareness together with existing regulations on the subject leads to investments and adaptations being made to production processes of paint and related products in order to meet requirements.

Taking into account the environmental hazards and the types of waste generated in the industry, it is essential to be able to make strategic decisions that lead to the optimisation of production and the reduction in its environmental impact. This will lead to a more sustainable and environmentally friendly industry. Read more

sistema de limpieza de tuberías | pipeline cleaning system
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Pipeline cleaning system for paint factories

Having an automated pipeline cleaning system in paint and paint-related product factories can be decisive in optimising production processes and achieving greater profitability. Besides, it is also environmentally friendly. Read more

dispervac
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DISPERVAC: optimises the process by incorporating solids by vacuum

At O+B we continue working to improve the production capacity of our clients by reducing costs and improving the quality of the finished product, always aiming for the greatest sustainability and respect for the environment. To this end, we have created DISPERVAC, a technology that enables solids to be incorporated by vacuum into mixing and dispersing equipment.

This article will describe how it works, and the main advantages it brings to the manufacturing process of paints and related products.

Read more