Hotmelt adhesives
The production of hotmelt adhesives requires careful selection of waxes and resins to balance key properties like viscosity, adhesion, and thermal stability.
At Ceras Martí, we have essential products for this industry, capable of enhancing both the performance of the adhesive and its adaptability to various materials and application processes.
Refined paraffins
They help adjust the viscosity and control the hardness of the final product. These waxes act as texture modifiers, allowing the adhesive to flow more easily during application.
Moreover, refined paraffins improve the open time of the adhesive, providing an adequate margin for use before it cools and sets.
Microcrystalline waxes
Denser in structure than paraffins, microcrystalline waxes provide elasticity and higher thermal resistance to hotmelt adhesives.
They are especially useful in applications where the adhesive is required to maintain its flexibility after solidification, or to offer strong adhesion on challenging surfaces like plastics and metals.
These waxes also help improve the internal cohesion of the adhesive, resulting in final products that are more durable and wear-resistant.
Colophony pieces
Colophony is a natural resin obtained from pines which, after undergoing modification processes such as esterification, becomes an essential ingredient to increase the initial tackiness of hotmelt adhesives.
In chunk form, colophony offers excellent adhesion to surfaces such as paper, cardboard, textiles, and plastics. Furthermore, it contributes to the adhesive’s aging resistance, ensuring it maintains its effectiveness over time. Modified colophony is particularly useful in adhesives intended for packaging, labeling, and sealing applications.
Applications of hotmelt adhesives
Hotmelt adhesives are used in a wide range of applications, from box sealing in the packaging industry to the manufacture of textile and automotive products. In addition to their flexibility and thermal resistance, hotmelt adhesives formulated with paraffins, microcrystalline waxes, and colophony offer excellent stability during storage and use, ensuring that final products retain their adhesive properties.
