Лако-красочные материалы — производство

The clarity and good colour of thermoplastic acrylics make them ideal binders for use in fluorescent coating formulations for both interior and exterior applications including safety warning, roads and aircrafts. A typical general purpose Fluorescent Formulation® is shown below: FORMULATION 3-22: GENERAL PURPOSE FLUORESCENT FORMULATION Fluorescent pigment 30.0 Paraloid B72 (as 50% solution) 40.0 Toluene […]

Certain thermoplastic acrylics are compatible with medium and long oil alkyds, and can be used to improve the colour and colour retention of decorative alkyd paints, whilst shortening drying time and increasing hardness. This, however, is achieved at the expense of paint solids content. Suitable alkyd compatible acrylics include : Neocryl B731 Zeneca Resins Plexigum […]

Special high acid value acrylics have been formulated to provide temporary protection for new automobiles between their manufacture and final sale. Lacquers based on these resins are spray applied to the painted and chromed parts of the car in order to protect the finish from accidental damage prior to sale. Removal of the temporary lacquer […]

by Kevin O’Hara LRSC In addition to the main end uses described earlier, TPA’s are used in a number of other specialised areas. 1. Road Marking Paints Formulating coatings for this application is very similar to that for coatings for concrete or masonry. The coating, applied with conventional lining equipment, must be able to tolerate […]

For Marine and off-shore use, an acrylic/vinyl blend is often favoured. These coatings have lower solids content, but are less prone to plasticiser migration which can occur with the previous formulation in tropical climates. FORMULATION 3-18:WHITE ACRYLIC / VINYL ENAMEL Rutile Titanium Dioxide 17.3 Synocryl 874S (40% in Shellsol A) 43.2 Vinyl Resin VMCH (Union […]

The use of thermoplastic acrylics in high build, heavy duty anti-corrosive systems is reported by Steed3 who describes top coat formulations based on thermoplastic acrylic resins, chlorinated rubber, solution vinyl resins as well as blends of two or more of these. Volume solids of up to 40% at application viscosity may be achieved using a […]

Acrylics have been used in clear metal coatings for the protection of brass, copper and bronze surfaces. Acrylic lacquers keep the surfaces bright, and low application solids allow thin films of less than 15 microns to be formed so that the original appearance of the article is retained. Such coatings are best made using methyl […]

by Ian Royston BSc and Roy Usher BSc Thermoplastic acrylics are used in a variety of applications for metal, both directly (e. g. in Light Industrial) and as part of a multi-coat system (e. g. in Off-shore and Marine). Fast drying, water-white colour and good compatibility with other polymers as well as exterior durability are […]

Concrete and Terrazo surfaces may be sealed using solutions of high durability, thermoplastic acrylic polymers. The sealer helps to prevent the ingress of oil, grease, fats, acids and alkalis as well as reducing the tendency of the surface to dust or flake. A sealer is produced simply by reducing a suitable acrylic to around 20% […]

Vinyl acrylate thermoplastic acrylic polymers soluble in low aromatic or isoparaffinic solvents are the preferred choice when solvent-borne coatings are chosen for matt wall or ceiling paints. Features which make this system attractive are: • Excellent adhesion • Direct application to stained or chalky surfaces (will not redissolve white-wash) • Alkali resistance • Non-yellowing • […]