Tag Archive for: KNOWLEDGE

plastisoles / plastisols

Plastisols are compounds made with PVC resin, a plasticiser replacing Dioctyl Phthalate which provides flexibility and durability, and other additives such as calcium carbonate, epoxidised oil, stabilisers, colourants, etcetera.

Also known as PVC pastes, plastisols maintain a liquid state with visco-elastic properties when at room temperature. However, when subjected to temperatures above 43ºC, plastisol viscosity increases and, when reaching temperatures of over 160ºC, it can change from a liquid to a solid state after cooling as a result of process known as gelation.

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Paint & Coatings, an international event bringing together the main companies working in the surface treatment and paint technology sector, will be held on 16 and 17 November at Fira Barcelona.

As a company specialised in developing machinery for manufacturing paint and related products, Oliver + Batlle will be present at the event, not only on the expo -where you can visit us at Stand 108-, but also at online events and webinars that will take place during the months leading up to the event. Let’s have a look at some of them.

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tixotropia thixotropy

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

tipos de residuos en la fabricación de pinturas

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

Viscosity, specific weight or colour are some of the characteristics specific to paint that must be controlled during the manufacturing process. Even if they have been previously determined during formulation, it is necessary to verify that the manufacturing process is correct and whether the desired result will be obtained once the paint is applied.

In this article we will analyse these fundamental characteristics that must be taken into account during the manufacturing process of paints. Read more