Efficiency, color consistency, cost-effectiveness


Never before has coloring sealants been this easy. With over 20-year-experience in the silicone rubber and elastomer technologies TERRA offers the most innovative coloring solutions for silicone sealants and adhesives. The colorants produced by the company Holland Colours are offered in forms of paste or liquid, and provide outstanding performances in automatic, semi-automatic and manual mixing systems. These highly effective colorants have been always the first choice of the sealant manufacturers due to many reasons:


- standard and custom colours

- custom viscosities

- extensive product line to meet specific needs

- large and small batch production

- great flexibility in production

- experience with all types of dosing equipment

- global network of sales and technical support

- multiple manufacturing sites assure product consistency and fast availability

- cost effective performance



To assure that customers’ individual and unique requirements are met, TERRA offers the whole range of colorants from Holland Colours to be used in sealant industries:


Holcosil® IP is an excellent solution for colouring silicone sealants. It is a paste that offers high pigment loading and excellent dispersion to minimize the amount of actual colour required to colour material and reduce costs. It is rheologically controlled and highly suited for automatic dosing applications. Holcosil® IP is also offered in custom colours and custom viscosities to meet virtually any need. Holcosil® IP is also used for colouring B-components and hardeners of RTV-2 products. It is available compliant with FDA (Food and Drug Administration) and German BfR (Bundesinstitut für Risikobewertung) requirements.


Holcosil® NS was developed specifically for tinting sealants in natural stone applications. Based on hydroxy-silicone polymers, Holcosil® NS is a paste that will cure in the appropriate sealant for a stain-free result. It has been designed with a viscosity for automatic dosing, and like all Holland Colourss sealant pigment pastes is available in standard and custom colours with a variety of effects. Holcosil® NS can also be used to colouring polycondensation-cured RTV-2 products.


Holcoflex® was created as a low cost, non-reactive and highly effective colourant for polyurethane sealants, MS-polymer sealants, polysulfide sealants and other organic sealants. It is available in 10 standard as well as custom colours. Holcoflex® provides excellent pigment dispersion, has extremely consistent performance and enables a high level of production efficiency. Holcoflex® is de-gassed, will not migrate, contains minimal moisture and has a maximum particle size <30 microns. It is formulated for automatic dosing with viscosity that can be adjusted to custom specifications.


Holcolex® is a line of acrylic sealant colourants, They are waterborne pigment pastes available in standard and custom colours. It offers optimal pigment loading and high levels of pigment dispersion with maximum reproducibility. Rheology-controlled and highly cost-efficient in production, Holcolex® A is well suited to a number of other applications using waterborne products such as primers and mortars.


For two-component, room-temperature-vulcanizing slicone rubbers (RTV-2) and for printing applications made with RTV-2’s, we offer following solutions:


- polyaddition grades and printing - Holcosil® LSR vinyl terminated silicone polymer-based pigment paste.

- polycondensation grades - Holcosil® NS hydroxyfunctional silicone polymer-based pigment paste.

- B-components or hardeners - Holcosil® IP is a multipurpose, silicone fluid-based pigment paste.


All are available in standard and custom colours and formulations.



For further information about our comprehensive range of Colorants for Sealants, please contact us.Our experts will assist you in making the right choices to secure the product properties you seek.


resim products colourants for sealants

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