Colorants – Colorants such as tinting pastes, glazes, and stains are versatile concentrated substances that are added to the binder to provide base pigmenting on the surface of application for specific tinting purposes, metallic finishes, and antiquing effects. Tinting pastes are compounds used to provide solid intense colors to binders which are considered as “Basecoat” or “Duco Finish”. Glazes are substances applied manually, through wiping or brushing, in between layers of the finish to provide darkening effect on the wood details and grain making it antique-like in appearance. Stains provide penetrative transparent color tone on the wood substrate improving its grain details and serves as a base shade for the succeeding coatings in order to achieve a certain finish.
Lacquers – Lacquers are the most commonly used protective surface coating for wood substrates. Nitrocellulose Lacquers and Vinyl Lacquers are best used for indoor wood furniture and cased goods. Nitrocellulose Lacquers perform best as protective coating for wood substrates that are situated in low traffic areas. Vinyl lacquers are usually used to provide coating for semi-flexible, waxy oily-like substrates such as rattan, bamboo, abaca, etc. Leather finishes on semi-fabric substrates can also be achieved using Leather Lacquer. Lacquers are then diluted with specially formulated thinner to provide ease of application and optimal performance as surface protective coatings.
Polyurethane – Two-part binder that uses hardener to provide a more rigid protective layer over most wood substrates. Polyurethane binder reacts with Isocyanate hardener to create a more durable, chemical resistant, and abrasion resistant finish on wood that are subject to medium to high traffic areas. Polyurethane binders are best used on most household wood furniture such as dining tables, chairs, parquets, main doors, and wooden staircases. Polyurethane binder variants can also withstand direct outdoor applications that are exposed to substantial UV sunlight rays. Polyurethane binders are considered to be more superior to Nitrocellulose and Vinyl lacquers in terms of durability and lifespan.
Solvent & Thinners – Solvents carefully formulated and mixed into thinners are added to lacquers and binders in strict specific proportions to provide optimum dilution that will not compromise film quality and consistency of the finish. Addition of thinners provides ease of application, fast drying action, and consistent binder spread. Thinners under Sparko Surface Coatings are accurately formulated to fit best when mixed with each kind of binder. Specific thinners are designated for each type of binder to ensure compatibility and quality finish. Thinner’s active and latent components are adjusted to allow optimal lacquer workaround and drying time, offering maximization of project lead time and production.
Auxiliaries – Powders, metallic leafing, additives, and wood preparation items are considered to be auxiliaries for different types of finishes. Sandpapers are used to improve substrate surface adhesion in preparation for any quality finish. Additives such as fungicides, anti-mildew, and bacteriocides can also be added to protect the wood from any organic decay and degradation. Steel wools and brushes are used to provide highlighting for glazes in between coats and enhance graining emphasis. Metallic powders and leafings are added to binders and finishes, respectively, for it to exhibit gold to silver variants of metal-like appearance on wood surface.
Adhesives & Fillers – Sparko adhesives are mainly used for decorative and wood-to-wood adhesion while fillers are used as part of most wood preparation processes. SP glues are water-based adhesives used to combine adjacent wood surfaces through veneering and finger-jointing. Wonder glue is used as adhesive for leafing of gold and silver metallic finishes. Wood putties, solvent- or water-based, are used to fill up holes and cracks on wood while wood fillers are applied on the wood to even out surface from open grains and miniscule gaps and crevices. After cure, both putties and fillers can be sanded for surface adhesion and finished with sealers and topcoats.